Published: 8 July 2020

The Southampton collaboration used advanced research facilities in the Mountbatten cleanroom complex

Researchers from the University of Southampton have demonstrated a new patterning technology that can create high-quality nanostructured surfaces for infrared thermal control coatings and nonlinear optics.

The research was carried out through a close collaboration between physicists and Sustainable Electronic Technologies experts in Electronics and Computer Science (ECS).

Metasurfaces are man-made structures designed to control light and other forms of radiation using very small elements, typically with sub-micrometer dimensions.

Conventional methods of producing the advanced material coatings in specialist cleanroom facilities such as the Southampton Nanofabrication Centre etch patterns into materials or deposit separated structures on the surface by a process called lift-off lithography. However, the resulting surface topography is often undesirable and can strongly limit the device performance when embedded into a stack of many independent layers.

In their study, the researchers explored a completely new technology that locally and selectively modulates optical properties without changing the flatness of the material surface. The research team based their new technique on the discovery that an oxygen plasma can greatly reduce the electron concentration of certain metal oxides, which hold unique properties for integrated circuits, solar cells, chemical sensing and catalysis.

The plasma patterning technique has been demonstrated by fabricating two novel devices, a planar metasurface-based optical solar reflector for satellite radiant cooling and a multiband metasurface with different operation ranges.

The Southampton team, led by Physics and Astronomy's Professor Otto Muskens and ECS's Professor Kees De Groot, have published the research in Advanced Materials.

Dr Kai Sun, lead author, says: "Plasma patterning provides a completely new route to form electrical and optical devices with structures beyond existing manufacturing limitations. Here, we have shown for the first time that a planar metasurface, based on aluminum-doped zinc oxide, can be achieved with an optical metasurface function but physically flat.

"The metasurface devices in this work are only a start of this new technique’s applications and its full potential impact is still to be seen."

Transparent conductive oxides such as aluminium-doped zinc oxide (Al:ZnO) have a high electron density, making it dielectric in visible range but metallic in infrared (IR) range. This electron density of Al:ZnO is critical for its material electrical and optical properties. To achieve an optical property contrast, which is required for optical metasurface formations, parts of the Al:ZnO film need to be removed, leaving a non-planar structure.

The study found that oxygen plasma can reduce Al:ZnO electron density by up to five orders of magnitude. This led the team to propose the new fabrication technique that forms a metasurface by selectively modulating the electron density using oxygen plasma, made possible by accurate location control through a lithography definition.

The fabricated device achieves its metasurface function for its optical property contrast but maintains a planar topological surface profile. This metasurface is highly desirable for its compatibility with any added functional layers.

Southampton scientists have applied to file the plasma patterning technique as a UK patent. Research was funded by the Dstl MultiMeta project, which has currently entered its second phase of development.

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Bruschi, David Edward, Paraoanu, G.S., Fuentes Guridi, Ivette, Wilhelm, Frank K. and Schell, Andreas W. (2021) General solution of the time evolution of two interacting harmonic oscillators. Physical Review A. (In Press)

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Research

Research interests

Quantum Technologies

Quantum and Nonlinear Optics

Atomic and Solid-State Physics

Publications

Wright, Thomas, Francis-Jones, Robert J.A., Gawith, Corin, Becker, Jonas N., Ledingham, Patrick M., Smith, Peter G.R., Nunn, Joshua, Mosley, Peter J., Brecht, Benjamin and Walmsley, I.A. (2018) A two-way quantum interface for linking Sr+ transition at 422nm to the telecommunications C-band.

Wright, Thomas A., Francis-Jones, Robert J.A., Gawith, Corin B.E., Becker, Jonas N., Ledingham, Patrick M., Walmsley, Ian A., Brecht, Benjamin, Nunn, Joshua and Mosley, Peter J. (2018) Single-photon-level interface for linking Sr⁺ transition at 422nm with the telecommunications C-band. In 2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc.. (doi:10.1364/CLEO_AT.2018.ATh3H.8).

Wright, Thomas A., Francis-Jones, Robert J.A., Gawith, Corin B.E., Becker, Jonas N., Ledingham, Patrick M., Smith, Peter G.R., Nunn, Joshua, Mosley, Peter J., Brecht, Benjamin and Walmsley, Ian A. (2018) Two-way photonic interface for linking the Sr⁺ transition at 422 nm to the telecommunication C band. Physical Review Applied, 10 (4), 1-8, [044012]. (doi:10.1103/PhysRevApplied.10.044012).

Walmsley, I.A., Nunn, J., Smith, B.J., Kolthammer, W.S., Saunders, D., Metcalf, B.J., Barz, S., Renema, J., Eckstein, A., Ledingham, Patrick M., Feizpour, A., Poem, E., Brecht, B., Chrzanowski, H., Humphreys, P.C., Clements, W., Kazcmarek, K., Munns, J.H.D., Qiu, C., Sprague, M.R., Gates, J.C. and Smith, P.G.R. (2016) Photonic networked quantum information technologies. In Frontiers in Optics 2016. OSA.. (doi:10.1364/FIO.2016.FTu5G.2).

Walmsley, I.A., Nunn, J., Smith, B.J., Kolthammer, W.S., Saunders, D., Metcalf, B.J., Barz, S., Renema, J., Eckstein, A., Ledingham, P., Feizpour, A., Poem, E., Brecht, B., Chrzanowski, H., Humphreys, P.C., Clements, W., Kazcmarek, K., Munns, J.H.D., Qiu, C., Gates, J.C. and Smith, P.G.R. (2016) Photonic quantum networks. JSAP-OSA Joint Symposia, , Niigata Japan. 13 - 16 Sep 2016.

Rieländer, Daniel, Kutluer, Kutlu, Ledingham, Patrick M., Gündoǧan, Mustafa, Fekete, Julia, Mazzera, Margherita and De Riedmatten, Hugues (2014) Quantum storage of heralded single photons in a praseodymium-doped crystal. Physical Review Letters, 112 (4), [040504]. (doi:10.1103/PhysRevLett.112.040504).

Gündoğan, Mustafa, Ledingham, Patrick M., Kutluer, Kutlu, Mazzera, Margherita and De Riedmatten, Hugues (2015) Solid state spin-wave quantum memory for time-bin qubits. Physical Review Letters, 114 (23), 1-5, [230501]. (doi:10.1103/PhysRevLett.114.230501).

Saunders, D. J., Munns, J. H. D., Champion, T. F. M., Qiu, C., Kaczmarek, K. T., Poem, E., Ledingham, P. M., Walmsley, I. A. and Nunn, J. (2016) Cavity-enhanced room-temperature broadband Raman memory. Physical Review Letters, 116 (9), 1-5, [090501]. (doi:10.1103/PhysRevLett.116.090501).

Klatzow, James, Becker, Jonas N., Ledingham, Patrick M., Weinzetl, Christian, Kaczmarek, Krzysztof T., Saunders, Dylan J., Nunn, Joshua, Walmsley, Ian A., Uzdin, Raam and Poem, Eilon (2019) Experimental demonstration of quantum effects in the operation of microscopic heat engines. Physical Review Letters, 122 (11), 1-6, [110601]. (doi:10.1103/PhysRevLett.122.110601).

Seri, Alessandro, Lenhard, Andreas, Rieländer, Daniel, Gündoğan, Mustafa, Ledingham, Patrick M., Mazzera, Margherita and de Riedmatten, Hugues (2017) Quantum correlations between single telecom photons and a multimode on-demand solid-state quantum memory. Physical Review X, 7 (2), [021028]. (doi:10.1103/PhysRevX.7.021028).

Main, D., Hird, T.M., Gao, S., Oguz, E., Saunders, D. J., Walmsley, I.A. and Ledingham, P. (2021) Preparing narrow velocity distributions for quantum memories in room-temperature alkali-metal vapors. Physical Review A, 103 (4), [043105]. (doi:10.1103/PhysRevA.103.043105).

Ledingham, Patrick (2021) Gigahertz-bandwidth optical memory in Pr³⁺:Y₂SiO₅. Optics Letters, 46 (12), 2948-2951. (doi:10.1364/OL.423642).

Beavan, S.E., Ledingham, P.M., Longdell, J.J. and Sellars, M.J. (2011) Photon echo without a free induction decay in a double-Λ system. Optics Letters, 36 (7), 1272-1274. (doi:10.1364/OL.36.001272).

Kaczmarek, Krzysztof T., Saunders, Dylan J., Sprague, Michael R., Kolthammer, W. Steven, Feizpour, Amir, Ledingham, Patrick M., Brecht, Benjamin, Poem, Eilon, Walmsley, Ian A. and Nunn, Joshua (2015) Ultrahigh and persistent optical depths of cesium in Kagomé-type hollow-core photonic crystal fibers. Optics Letters, 40 (23), 5582-5585. (doi:10.1364/OL.40.005582).

Maring, Nicolas, Kutluer, Kutlu, Cohen, Joachim, Cristiani, Matteo, Mazzera, Margherita, Ledingham, Patrick M. and De Riedmatten, Hugues (2014) Storage of up-converted telecom photons in a doped crystal. New Journal of Physics, 16, [113021]. (doi:10.1088/1367-2630/16/11/113021).

Gündogan, M., Kutluer, K., Ledingham, P. M., Mazzera, M. and de Riedmatten, H. (2014) A solid state spin-wave quantum memory for photonic time-Bin qubits. In 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference. OSA..

Tay, Jian Wei, Farr, Warrick G., Ledingham, Patrick M., Korystov, Dmitry and Longdell, Jevon J. (2013) Hybrid optical and electronic laser locking using slow light due to spectral holes. Physical Review A - Atomic, Molecular, and Optical Physics, 87 (6), [063824]. (doi:10.1103/PhysRevA.87.063824).

Gündoǧan, M., Mazzera, M., Ledingham, P. M., Cristiani, M. and De Riedmatten, H. (2013) Coherent storage of temporally multimode light using a spin-wave atomic frequency comb memory. New Journal of Physics, 15, [045012]. (doi:10.1088/1367-2630/15/4/045012).

Gündoǧan, M., Rieländer, D., Kutluer, K., Fekete, J., Ledingham, P. M., Mazzera, M., Cristiani, M. and De Riedmatten, H. (2013) Spin-wave storage of single photon level light fields in a doped solid. Kang, I., Reitze, D., Alic, N. and Hagan, D. (eds.) In Frontiers in Optics 2013. Optical Society of America.. (doi:10.1364/fio.2013.ftu1c.4).

Ledingham, Patrick M., Naylor, William R. and Longdell, Jevon J. (2012) Experimental realization of light with time-separated correlations by rephasing amplified spontaneous emission. Physical Review Letters, 109 (9), [093602]. (doi:10.1103/PhysRevLett.109.093602).

Gündǒgan, Mustafa, Ledingham, Patrick M., Almasi, Attaallah, Cristiani, Matteo and Riedmatten, Hugues De (2012) Quantum storage of a photonic polarization qubit in a doped crystal. In Research in Optical Sciences. OSA..

Gündoǧan, Mustafa, Ledingham, Patrick M., Almasi, Attaallah, Cristiani, Matteo and De Riedmatten, Hugues (2012) Quantum storage of a photonic polarization qubit in a solid. Physical Review Letters, 108 (19), [190504]. (doi:10.1103/PhysRevLett.108.190504).

McAuslan, D. L., Ledingham, P. M., Naylor, W. R., Beavan, S. E., Hedges, M. P., Sellars, M. J. and Longdell, J. J. (2011) Photon-echo quantum memories in inhomogeneously broadened two-level atoms. Physical Review A - Atomic, Molecular, and Optical Physics, 84 (2), [022309]. (doi:10.1103/PhysRevA.84.022309).

Ledingham, Patrick M., Naylor, William R., Longdell, Jevon J., Beavan, Sarah E. and Sellars, Matthew J. (2010) Nonclassical photon streams using rephased amplified spontaneous emission. Physical Review A - Atomic, Molecular, and Optical Physics, 81 (1), [012301]. (doi:10.1103/PhysRevA.81.012301).

Tay, Jian Wei, Ledingham, Patrick M. and Longdell, Jevon J. (2010) Coherent optical ultrasound detection with rare-earth ion dopants. Applied Optics, 49 (23), 4331-4334. (doi:10.1364/AO.49.004331).

Tay, Jian Wei, Ledingham, Patrick and Longdell, Jevon J. (2010) Ultrasound detection using dispersion due to spectral holes. In Frontiers in Optics 2010/Laser Science XXVI. Optica Publishing Group..

Kutluer, Kutlu, Pascual-Winter, María Florencia, Dajczgewand, Julian, Ledingham, Patrick M., Mazzera, Margherita, Chanelière, Thierry and De Riedmatten, Hugues (2016) Spectral-hole memory for light at the single-photon level. Physical Review A, 93 (4), [040302]. (doi:10.1103/PhysRevA.93.040302).

Munns, J. H.D., Qiu, C., Ledingham, P. M., Walmsley, I. A., Nunn, J. and Saunders, D. J. (2016) In situ characterization of an optically thick atom-filled cavity. Physical Review A, 93 (1), [013858]. (doi:10.1103/PhysRevA.93.013858).

Kaczmarek, K. T., Ledingham, P. M., Brecht, B., Feizpour, A., Thekkadath, G. S., Thomas, S. E., Munns, J. H.D., Saunders, D. J., Walmsley, I. A. and Nunn, J. (2017) QLad: A Noise-Free Quantum Memory for Broadband Light at Room Temperature. In 2017 Conference on Lasers and Electro-Optics (CLEO). Institute of Electrical and Electronics Engineers Inc. pp. 1-2 .

Munns, J. H.D., Thomas, S. E., Kaczmarek, K. T., Ledingham, P. M., Saunders, D. J., Nunn, J., Brecht, B. and Walmsley, I. A. (2017) Temporal-mode selection with a Raman quantum memory. In Frontiers in Optics, FiO 2017. vol. Part F66-FiO 20, OSA.. (doi:10.1364/FIO.2017.JW4A.16).

Nunn, J., Munns, J. H.D., Thomas, S., Kaczmarek, K. T., Qiu, C., Feizpour, A., Poem, E., Brecht, B., Saunders, D. J., Ledingham, P. M., Reddy, Dileep V., Raymer, M. G. and Walmsley, I. A. (2017) Theory of noise suppression in Λ -type quantum memories by means of a cavity. Physical Review A, 96 (1), [012338]. (doi:10.1103/PhysRevA.96.012338).

Hird, T. M., Thomas, S. E., Munns, J. H.D., Arjona, O. L., Gao, S., Nunn, J., Brecht, B., Saunders, D. J., Ledingham, P. M. and Walmsley, I. A. (2018) Engineering a noiseless and broadband Raman quantum memory for temporal mode manipulation. In Frontiers in Optics 2018. OSA.. (doi:10.1364/FIO.2018.JW3A.63).

Kaczmarek, K. T., Ledingham, P. M., Brecht, B., Thomas, S. E., Thekkadath, G. S., Lazo-Arjona, O., Munns, J. H.D., Poem, E., Feizpour, A., Saunders, D. J., Nunn, J. and Walmsley, I. A. (2018) High-speed noise-free optical quantum memory. Physical Review A, 97 (4), [042316]. (doi:10.1103/PhysRevA.97.042316).

Hird, T. M., Thomas, S. E., Munns, J. H.D., Brecht, B., Saunders, D. J., Nunn, J., Walmsley, I. A. and Ledingham, P. M. (2019) Noise suppression via atomic absorption in a Raman quantum memory. In Quantum Information and Measurement, QIM 2019. vol. Part F165-QIM 2, OSA.. (doi:10.1364/QIM.2019.T5A.76).

Gao, S., Lazo-Arjona, O., Brecht, B., Kaczmarek, K. T., Ledingham, P. M., Thomas, S. E., Nunn, J., Saunders, D. J. and Walmsley, I. A. (2019) Optimal coherent filtering for single photons. In Quantum Information and Measurement, QIM 2019. vol. Part F165-QIM 2, OSA.. (doi:10.1364/QIM.2019.S4A.3).

Gao, S., Lazo-Arjona, O., Brecht, B., Kaczmarek, K. T., Thomas, S. E., Nunn, J., Ledingham, P. M., Saunders, D. J. and Walmsley, I. A. (2019) Optimal Coherent Filtering for Single Noisy Photons. Physical Review Letters, 123 (21), [213604]. (doi:10.1103/PhysRevLett.123.213604).

Becker, Jonas N., Klatzow, James, Ledingham, Patrick M., Weinzetl, Christian, Kaczmarek, Krzysztof T., Saunders, Dylan J., Nunn, Joshua, Uzdin, Raam, Walmsley, Ian A. and Poem, Eilon (2019) Bending the rules: Quantum effects in the operation of a microscopic heat engine in diamond. In European Quantum Electronics Conference, EQEC_2019. vol. Part F143-EQEC , OSA..

Thomas, S. E., Hird, T. M., Munns, J. H.D., Brecht, B., Saunders, D. J., Nunn, J., Walmsley, I. A. and Ledingham, P. M. (2019) Raman quantum memory with built-in suppression of four-wave-mixing noise. Physical Review A, 100 (3), [033801]. (doi:10.1103/PhysRevA.100.033801).

Contact

Email: P.Ledingham@soton.ac.uk

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Publications

Zeimpekis-Karakonstantinos, Ioannis, Sun, Kai, HU, CHUNXIAO, Ditshego, Jack Nonofo, Thomas, O, De Planque, Maurits, Chong, Harold, Morgan, Hywel and Ashburn, Peter (2016) Dataset for Dual-Gate Polysilicon Nanoribbon Biosensors Enable High Sensitivity Detection of Proteins. University of Southampton doi:10.5258/SOTON/379790 [Dataset]

Sun, Kai, Zeimpekis-Karakonstantinos, Ioannis, HU, CHUNXIAO, Ditshego, Jack Nonofo, Owain, Thomas, Chong, Harold, De Planque, Maurits, Morgan, Hywel and Ashburn, Peter (2015) Dataset for Effect of Subthreshold Slope on the Sensitivity of Nanoribbon Sensors. University of Southampton doi:10.5258/SOTON/380117 [Dataset]

Sun, Kai, Zeimpekis-Karakonstantinos, Ioannis, HU, CHUNXIAO, Ditshego, Jack Nonofo, De Planque, Maurits, Chong, Harold, Morgan, Hywel and Ashburn, Peter (2016) Dataset for Low-cost Top-down Zinc Oxide Nanowire Sensors through a Highly Transferable Ion Beam Etching for Healthcare Applications. University of Southampton doi:10.5258/SOTON/383154 [Dataset]

HU, CHUNXIAO, Zeimpekis-Karakonstantinos, Ioannis, Sun, Kai, Anderson, Sally, Ashburn, Peter and Morgan, Hywel (2016) Dataset for low cost nanoribbon sensors for protein analysis in human serum using a miniature bead-based enzyme-linked immunosorbent assay. University of Southampton doi:10.5258/SOTON/386454 [Dataset]

Riedel, Christoph (2017) Dataset for 'Nanoscale modeling of electro-plasmonic tunable devices for modulators and metasurfaces'. University of Southampton doi:10.5258/SOTON/405054 [Dataset]

Wang, Qian, Yuan, Guanghui, Kiang, Kian, Sun, Kai, Gholipour, Behrad, Rogers, Edward, Huang, Kevin Chung-Che, Ang, S.S., Zheludev, Nikolai and Teng, Jinghua (2017) Grayscale photolithography with phase change material photomasks. Conference on Lasers and Electro-Optics (CLEO Pacific Rim), , Singapore. 31 Jul - 04 Aug 2017.

Wang, Qian, Yuan, Guanghui, Kiang, Kian, Sun, Kai, Gholipour, Behrad, Rogers, Edward, Huang, K., Ang, S.S., Zheludev, Nikolai and Teng, Jinghua (2017) Dataset for Reconfigurable phase-change photomask for grayscale photolithography. University of Southampton doi:10.5258/SOTON/D0084 [Dataset]

Wang, Q., Yuan, G.H., Kiang, K.S., Sun, K., Gholipour, B., Rogers, E.T.F., Huang, K., Ang, S.S., Zheludev, N.I. and Teng, J.H. (2017) Reconfigurable phase-change photomask for grayscale photolithography. Applied Physics Letters, 110, [201110]. (doi:10.1063/1.4983198).

Tarazona, Antulio, de Leon, Maria Theresa, Grech, David, Zeimpekis, Ioannis, Sun, Kai, Chong, Harold and Ashburn, Peter (2014) Illustration of the industrial readiness of hot wire chemical vapor deposition (HWCVD) as part of standard micro-fabrication and high spec nanofabrication production lines.

Sun, Kai, Hakim, MMA, Zeimpekis, Ioannis, Gunn, Robert and Ashburn, Peter (2012) Comparison of Etches for Top-down Fabrication of Polycrystalline Silicon Nanowires.

Morgan, Hywel, Kalsi, Sumit, Valiadi, Martha, Zeimpekis, Ioannis, Hu, Chunxiao, Sun, Kai and Ashburn, Peter (2015) From smartphones to diagnostics: Low cost electronics for programmable digital microfluidics and sensing. International Conference on Miniaturized Systems for Chemistry and Life Sciences, , Gyeongju, Korea, Republic of. 24 - 29 Oct 2015. pp. 254-256 .

Huang, Ruomeng, Ye, Sheng, Sun, Kai, Kiang, Kian and De Groot, Cornelis (2017) Dataset for Fermi level tuning of ZnO films through supercycled atomic layer deposition. University of Southampton doi:10.5258/SOTON/D0248 [Dataset]

Huang, Ruomeng, Ye, Sheng, Sun, Kai, Kiang, Kian and De Groot, Cornelis (2017) Fermi level tuning of ZnO films through supercycled atomic layer deposition. Nanoscale Research Letters, 12. (doi:10.1186/s11671-017-2308-1).

Lowe, Benjamin M., Sun, Kai, Zeimpekis, Ioannis, Skylaris, Chris-Kriton and Green, Nicolas G. (2017) Field-effect sensors – from pH sensing to biosensing: sensitivity enhancement using streptavidin-biotin as a model system. Analyst, 142 (22), 4173-4200. (doi:10.1039/C7AN00455A).

Muskens, Otto, Riedel, Christoph, Sun, Kai and De Groot, Cornelis (2018) Dataset for Metasurface optical solar reflectors using AZO transparent conducting oxides for radiative cooling of spacecraft. University of Southampton doi:10.5258/SOTON/D0283 [Dataset]

Sun, Kai, Riedel, Christoph A., Wang, Yudong, Urbani, Alessandro, Simeoni, Mirko, Mengali, Sandro, Zalkovskij, Maksim, Bilenberg, Brian, De Groot, C. H. and Muskens, Otto L. (2018) Metasurface optical solar reflectors using AZO transparent conducting oxides for radiative cooling of spacecraft. ACS Photonics, 52, 495-501. (doi:10.1021/acsphotonics.7b00991).

Lowe, Benjamin, Sun, Kai, Zeimpekis, Ioannis, Skylaris, Chris-Kriton and Green, Nicolas (2016) Limitations and possibilities for biologically-sensitive field-effect transistor-sensor design (BioFET): Complexity of the oxide-electrolyte interface. 5th International Conference on Material Science and Engineering Technology, http://www.icmset.com/2016.html, Tokyo, Japan. 29 - 31 Oct 2016.

Zeimpekis, Ioannis, Papadimitriou, Konstantinos, Sun, Kai, Hu, Chunxiao, Ashburn, Peter, Morgan, Hywel and Prodromakis, Themistoklis (2017) A sub-30 mpH resolution thin film transistor-based nanoribbon biosensing platform. Sensors, 17 (9), 1-12. (doi:10.3390/s17092000).

HU, CHUNXIAO, Kalsi, Sumit, Zeimpekis, Ioannis, Sun, Kai, Ashburn, Peter, Turner, Carrie, Sutton, J. Mark and Morgan, Hywel (2018) Dataset for Ultra-fast electronic detection of antimicrobial resistance genes using isothermal amplification and thin film transistor sensors. University of Southampton doi:10.5258/SOTON/404101 [Dataset]

Urbani, Alessandro, Simeoni, Mirko, Mengali, Sandro, Zalkovskij, Maksim, Bilenberg, Brian, De Groot, Cornelis and Muskens, Otto (2018) Dataset for VO2 thermo-chromic metamaterial-based smart optical solar reflector. University of Southampton doi:10.5258/SOTON/D0446 [Dataset]

Sun, Kai, Riedel, Christoph A., Urbani, Alessandro, Simeoni, Mirko, Mengali, Sandro, Zalkovskij, Maksim, Bilenberg, Brian, De Groot, C.H. and Muskens, Otto L. (2018) VO2 thermochromic metamaterial-based smart optical solar reflector. ACS Photonics, 5 (6), 2280-2286. (doi:10.1021/acsphotonics.8b00119).

Akrofi, Joshua, Daniel, Ebert, Martin, Reynolds, Jamie Dean, Sun, Kai, Hu, Ruoyu, De Planque, Maurits and Chong, Harold (2020) Multi-stack insulator to minimise threshold voltage drift in ZnO FET sensors operating in ionic solutions. Micro and Nano Engineering. (doi:10.1016/j.mne.2020.100066).

Zhang, Shi, Zhu, Xupeng, Xiao, Wei, Shi, Huimin, Wang, Yasi, Chen, Zhiquan, Chen, Yiqin, Sun, Kai, Muskens, Otto L, De Groot, C H, Liu, Shao-Ding and Duan, Huigao (2020) Strongly coupled evenly divided disks: a new compact and tunable platform for plasmonic Fano resonances. Nanotechnology, 31 (32), 325202, [325202]. (doi:10.1088/1361-6528/ab8d68).

Du, Yuxin, Sun, Kai, Zheng, Zihang, De Groot, Kees and Fang, Xu (2021) Optical modulation in a Si microring resonator inspired by biological classical conditioning. Photonics in Switching and Computing (PSC), Online. 27 - 29 Sep 2021. 1 pp .

Muskens, Otto, Piper, Lewis, Kieran, Singh, Haobijam, Woods, Jonathan, Sun, Kai and Apostolopoulos, Vasileios (2021) Dataset for Mechanically tunable terahertz metamaterial perfect absorber. University of Southampton doi:10.5258/SOTON/D1888 [Dataset]

Wang, Wenhao, Wang, Hanbin, Yu, Peng, Sun, Kai, Tong, Xin, Lin, Feng, Wu, Cuo, You, Yimin, Xie, Wuze, Li, Yunpeng, Yuan, Chenzhi, Govorov, Alexander O., Muskens, Otto L., Xu, Hongxing, Sun, Song and Wang, Zhiming (2021) Broadband thin-film and metamaterial absorbers using refractory vanadium nitride and their thermal stability. Optics Express, 29 (21), [33456]. (doi:10.1364/OE.439546).

Piper, Lewis K., Singh, H. Johnson, Woods, Jonathan R. C., Sun, Kai, Muskens, Otto L. and Apostolopoulos, Vasilis (2021) Mechanically tunable terahertz metamaterial perfect absorber. Advanced Photonics Research, 2 (12), 2100136. (doi:10.1002/adpr.202100136).

Zheng, Zihang, Sun, Kai, Du, Yuxin, Muskens, Otto, De Groot, Kees and Fang, Xu (2022) Vertical growth models outperform effective medium models in analyzing VO2 phase transition. CLEO, , San Jose, United States. 15 - 20 May 2022. 1 pp . (In Press)

Dai, Peng, Sun, Kai, Yan, Xingzhao, Muskens, Otto, De Groot, Kees, Zhu, Xupeng, Hu, Yueqiang, Duan, Huigao and Huang, Ruomeng (2022) Inverse design of structural color: Finding multiple solutions via conditional generative adversarial networks. Nanophotonics, 11 (13), 3057-3069. (doi:10.1515/nanoph-2022-0095).

Zheng, Zihang, Sun, Kai, Du, Yuxin, Muskens, Otto, De Groot, Kees and Fang, Xu (2022) Vertical growth models for analysing vanadium dioxide phase transition in thin films. Photon 2022. 30 Aug - 02 Sep 2022. (In Press)

Sun, Kai, Vassos, Evangelos, Yan, Xingzhao, Wheeler, Callum, Wiecha, Peter R., Gregory, Simon A., Feresidis, Alex, De Groot, Kees and Muskens, Otto (2022) Dataset for: Wafer-scale 200 mm Metal Oxide Infrared Metasurface with Tailored Differential Emissivity Response in the Atmospheric Windows. University of Southampton doi:10.5258/SOTON/D2141 [Dataset]

Sun, Kai, Vassos, Evangelos, Yan, Xingzhao, Wheeler, Callum, Churm, James, Wiecha, Peter R., Gregory, Simon A., Feresidis, Alex, de Groot, Cornelis H. and Muskens, Otto L. (2022) Wafer-Scale 200 mm Metal Oxide Infrared Metasurface with Tailored Differential Emissivity Response in the Atmospheric Windows. Advanced Optical Materials. (doi:10.1002/adom.202200452).

Sun, Kai, Xiao, Wei, Wheeler, Callum, Simeoni, Mirko, Urbani, Alessandro, Gaspari, Matteo, Mengali, Sandro, Kees De Groot, C. H. and Muskens, Otto L. (2022) VO₂metasurface smart thermal emitter with high visual transparency for passive radiative cooling regulation in space and terrestrial applications. Nanophotonics. (doi:10.1515/nanoph-2022-0020). (In Press)

Sun, Kai, Xiao, Wei, Wheeler, Callum, Simeoni, Mirko, Urbani, Alessandro, Gaspari, Matteo, Mengali, Sandro, De Groot, Kees and Muskens, Otto (2022) Dataset to support the journal article: VO2 Metasurface Smart Thermal Emitter with High Visual Transparency for Passive Radiative Cooling Regulation in Space and Terrestrial Applications. University of Southampton doi:10.5258/SOTON/D2144 [Dataset]

Dai, Peng, Sun, Kai, Yan, Xingzhao, Muskens, Otto, De Groot, Kees, Zhu, Xupeng, Hu, Yueqiang, Duan, Huigao and Huang, Ruomeng (2022) Dataset for "Inverse Design of Structural Color: Finding Multiple Solutions via Conditional Generative Adversarial Networks". University of Southampton doi:10.5258/SOTON/D2182 [Dataset]

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Publications

Dovzhenko, Dmitrii, Krivenkov, Victor, Kriukova, Irina, Samokhvalov, Pavel, Karaulov, Alexander and Nabiev, Igor (2020) Enhanced spontaneous emission from two-photon-pumped quantum dots in a porous silicon microcavity. Optics Letters, 45 (19), 5364-5367. (doi:10.1364/OL.400300).

Dovzhenko, Dmitrii, Lednev, Maksim, Mochalov, Konstantin, Vaskan, Ivan, Samokhvalov, Pavel, Rakovich, Yury and Nabiev, Igor (2021) Strong exciton−photon coupling with colloidal quantum dots in a tunable microcavity. Applied Physics Letters, 119 (1), [011102]. (doi:10.1063/5.0047146).

Contact

Telephone: +44 (0) 23 8059 2766

Email: D.Dovzhenko@soton.ac.uk

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Date:: 5th of June, 2017 @ 13:00 - 14:00
Venue:: Physics (46) - 5081

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Join us on Monday 5th June, at 1pm in the Physics Seminar Room (46/5081), for the QLM weekly seminar. This week we’re delighted to be hosting Jacob Viner, who will be giving his MPhys year of experimental research presentation. Jacob has spent the last academic year working in the Nanomaterials Group and his talk is titled “Rayleigh Scattering from Individual Suspended Extreme Nanowires”. -- Abstract This presentation will discuss some of the properties of the smallest possible diameter nanowires and how they can be produced using carbon nanotubes as a template. It will discuss the emerging technique of Rayleigh scattering spectroscopy and how it can be used in conjunction with TEM to link the structure with optical properties of these nanowires. This involves making measurements on individual nanowires, encased in carbon nanotubes. -- As always, tea, coffee and cake will be provided. We look forward to seeing you there! --- QLM Committee QLM Website: http://www.qlm.soton.ac.uk QLM Facebook Group: https://www.facebook.com/groups/405150546265372/?fref=tsQLM Twitter: https://twitter.com/qlmsoton

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Date:: 12th of March, 2018 @ 13:00 - 14:00
Venue:: Physics (46) - 5081

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Join us on Monday 12th of March, at 1pm in the Physics Seminar Room (46/5081), for the QLM Monday seminar. This week we’re delighted to have Prof. Pavlos Lagoudakis who will be giving a talk on project time management. Full details are below. -- Speaker: Prof. Pavlos Lagoudakis Title: Project Time Management Abstract: TBC -- As always, tea, coffee and cake/biscuits will be provided. If you are able to bring your own mugs for any hot drinks, please do, as we would like to cut down on the waste produced by the seminars. We look forward to seeing you there! --- QLM Committee QLM Website: http://www.qlm.soton.ac.uk QLM Facebook Group: https://www.facebook.com/groups/405150546265372/?fref=tsQLM Twitter: https://twitter.com/qlmsoton

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Date:: 8th of May, 2017 @ 13:00 - 14:00
Venue:: Physics (46) - 5081

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Join us on Monday 8th of May, at 1pm in the Physics Seminar Room (46/5081), for the QLM weekly seminar. We’re pleased to have Dr Luca Sapienza from the Solid-State Quantum Optics Group, who will be giving a talk titled “On-Chip Integrated Single-Photon Sources”. -- Abstract I will discuss the properties of semiconductor quantum dots as single-photon sources integrated on a chip. In particular, I will present recent results in the implementation of metallic nano-rings for enhanced free-space extraction of light from solid-state emitters, achieving increases in the brightness of up to a factor 20, in a scalable, broadband geometry. I will also show how atomic force microscopy combined with photoluminescence imaging gives insights into quantum dot growth and can be used to increase the yield of quantum photonic devices. Finally, I will discuss a hybrid silicon/GaAs platform which allows quantum light sources to be integrated on silicon devices for integrated quantum and non-linear optics. -- As always, tea, coffee and cake will be provided. We look forward to seeing you there! --- QLM Committee QLM Website: http://www.qlm.soton.ac.uk QLM Facebook Group: https://www.facebook.com/groups/405150546265372/?fref=tsQLM Twitter: https://twitter.com/qlmsoton

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Date:: 4th of June, 2018 @ 13:00 - 14:00
Venue:: Physics (46) - 5081

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Join us on Monday 4th of June, at 1pm in the Physics Seminar Room (46/5081), for the QLM Monday seminar. This week we’re delighted to have Chris Timberlake from the Quantum Nanophysics and Matter Wave Interferometry Group, who will be giving their second year talk titled “Magnetic Levitation: An Ultra-High Q Oscillator”. Full details are below. -- Speaker: Chris Timberlake Title: Magnetic Levitation: An Ultra-High Q Oscillator Abstract: TBC -- As always, tea, coffee and cake/biscuits will be provided. If you are able to bring your own mugs for any hot drinks, please do, as we would like to cut down on the waste produced by the seminars. We look forward to seeing you there! --- QLM Committee QLM Website: http://www.qlm.soton.ac.uk QLM Facebook Group: https://www.facebook.com/groups/405150546265372/?fref=tsQLM Twitter: https://twitter.com/qlmsoton

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Date:: 21st of May, 2018 @ 13:00 - 14:00
Venue:: Physics (46) - 5081

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Join us on Monday 21st of May, at 1pm in the Physics Seminar Room (46/5081), for the QLM Monday seminar. This week we’re delighted to have David Elcock from the Quantum Control Group, who will be giving their second year talk titled “Matterwave Gyroscope using Cold Atoms”. Full details are below. -- Speaker: David Elcock Title: Matterwave Gyroscope using Cold Atoms Abstract: TBC -- As always, tea, coffee and cake/biscuits will be provided. If you are able to bring your own mugs for any hot drinks, please do, as we would like to cut down on the waste produced by the seminars. We look forward to seeing you there! --- QLM Committee QLM Website: http://www.qlm.soton.ac.uk QLM Facebook Group: https://www.facebook.com/groups/405150546265372/?fref=tsQLM Twitter: https://twitter.com/qlmsoton

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