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Ms. Tapashree Roy

Project
Nanoscope - super-resolution optical imaging

Short CV
Tapashree received Bachelor of Science (Physics) in 2005 and Bachelor of Technology (Radio Physics & Electronics) in 2008, both from the University of Calcutta, India. She had been doing research on radio frequency left handed metamaterials in the University of Calcutta between 2008 and 2010. Tapashree joined the Optoelectronics Research Centre, University of Southampton as a PhD student in July 2010. She has been awarded the prestigious EPSRC Doctoral Prize Fellowship in 2014. Her research interest lies in super-resolution microscopy, electromagnetic metamaterials, phase change memory devices and non-linear optics.

Personal homepage
tapashree roy

Articles

  1. Planar super-oscillatory lens for sub-diffraction optical needles at violet wavelengths
    G. Yuan, E. T. F. Rogers, T. Roy, G. Adamo, Z. Shen, and N. I. Zheludev
    Sci. Rep. 4, 6333 (2014) doi: 10.1038/srep06333 - pdf
  2. Point spread function of the optical needle super oscillatory lens
    T. Roy, E. T. F. Rogers, G. Yuan, and N. I. Zheludev
    Appl. Phys. Lett. 104, 231109 (2014) doi: 10.1063/1.4882246 - pdf
  3. 1.7 Gbit/inch2 gray-scale continuous-phase-change femtosecond image storage
    Q. Wang, J. Maddock, E. T. F. Rogers, T. Roy, C. Craig, K. F. MacDonald, D. W. Hewak and N. I. Zheludev
    Appl. Phys. Lett. 104, 121105 (2014) doi: 10.1063/1.4869575 - pdf
  4. Flat super-oscillatory lens for heat-assisted magnetic recording with sub-50nm resolution
    G. Yuan, E. T. F. Rogers, T. Roy, Z. Shen, and N. I. Zheludev
    Opt. Express 22(6), 6428 (2014) doi: 10.1364/OE.22.006428 - pdf
  5. A meta-diffraction-grating for visible light
    T. Roy, A. E. Nikolaenko and E. T. F. Rogers
    J. Opt. 15 085101 (2013) doi: 10.1088/2040-8978/15/8/085101
  6. Sub-wavelength focusing meta-lens
    T. Roy, E. T. F. Rogers, and N. I. Zheludev
    Opt. Express 21(6), 7577 (2013) doi: 10.1364/OE.21.007577 - pdf
  7. Super-oscillatory optical needle
    E. T. F. Rogers, S. Savo, J. Lindberg, T. Roy, M. R. Dennis, and N. I. Zheludev
    Appl. Phys. Lett. 102, 031108 (2013) doi: 10.1063/1.4774385 - pdf
  8. A super-oscillatory lens optical microscope for subwavelength imaging
    E. T. F. Rogers, J. Lindberg, T. Roy, S. Savo, J. E. Chad, M. R. Dennis and N. I. Zheludev
    Nat. Mater. 11, 432 (2012) doi: 10.1038/NMAT3280 - free access

Conference Contributions

  1. Non-volatile dielectric metamaterials reconfigurable with light
    Q. Wang, E. T. F. Rogers, B. Gholipour, T. Roy, Y. Guanghui, and N. I. Zheludev
    CLEO/Europe-EQEC 2015, Munich, Germany 21 - 25 Jun 2015
  2. Optically reconfigurable dielectric metamaterials
    Q. Wang, E. T. F. Rogers, B. Gholipour, T. Roy, N. I. Zheludev
    Nanometa 2015, Seefeld, Austria, 5 - 8 Jan 2015
  3. Solid-immersion super-oscillatory lens for heat assisted magnetic recording technology and nanoscale imaging
    T. Roy, G. Yuan, E. Rogers and N. I. Zheludev
    CLEO:2014, San Jose, CA, USA, 8 - 13 Jun 2014
  4. Plasmonic super-oscillations and sub-diffraction focusing
    G. Yuan, E. Rogers, T. Roy, L. Du, Z. Shen and N. I. Zheludev
    CLEO:2014, San Jose, CA, USA, 8 - 13 Jun 2014
  5. 2D cognitive optical data processing with phase change materials
    Q. Wang, J. Maddock, E. T. F. Rogers, T. Roy, C. Craig, K. F. MacDonald, D. W. Hewak and N. I. Zheludev
    CLEO:2014, San Jose, CA, USA, 8 - 13 Jun 2014
  6. (invited) Optical super-oscillation: towards the far-field super-resolution focusing and imaging
    G. Yuan, E. T. F. Rogers, T. Roy, Z. Shen and N. I. Zheludev
    META'14, Singapore, 20 - 23 May 2014
  7. (invited) Volatile and non-volatile switching in dielectric metamaterials
    K. F. MacDonald, Q. Wang, J. Maddock, E. T. F. Rogers, T. Roy, C. Craig, B. Mills, D. W. Hewak, N. I. Zheludev
    META'14, Singapore, 20 - 23 May 2014
  8. (poster) Femtosecond multi-level phase switching in chalcogenide thin films for all-optical data and image processing
    Q. Wang, J. Maddock, B. Mills, C. Craig, E. T. F. Rogers, T. Roy, K. F. MacDonald, D. W. Hewak, and N. I. Zheludev
    SPIE Photonics Europe, Brussels, Belgium, 14 - 17 Apr 2014
  9. Super-oscillatory optical needle for heat-assisted magnetic recording
    G. Yuan, E. T. F. Rogers, T. Roy, B. Lafferty, M. Mooney, Z. Shen and N. I. Zheludev
    CLEO:2013, San Jose, United States, 09 - 14 June 2013
  10. (poster) A superoscillatory metalens array
    T. Roy, E. T. F. Rogers, and N. Zheludev
    Nanometa 2013, Seefeld, Austria, 3 - 6 Jan 2013
  11. (poster) Exploring the limits of super-oscillatory imaging
    E. T. F. Rogers, T. Roy, N. Zheludev, J. Lindberg, and M. Dennis
    Nanometa 2013, Seefeld, Austria, 3 - 6 Jan 2013
  12. (keynote) Super-oscillatory lens far-field to far-field optical microscope: breaking diffraction limit
    E. T. F. Rogers, Jari Lindberg, T. Roy, S. Savo, J. E. Chad, M. Dennis and N. I. Zheludev
    SPIE Congress, San Diego, USA, 12 - 16 Aug 2012
  13. Transformation optics with planar metamaterials: diffraction grating and lens
    T. Roy, A. E. Nikolaenko, E. T. F. Rogers, N. I. Zheludev
    CLEO:2012, San Jose, United States, 06 - 11 May 2012
  14. (poster) Light localization, linear and nonlinear properties of disordered plasmonic metamaterials
    T. S. Kao, T. Roy, M. Ren, N. Papasimakis, F. DeAngelis, E. DiFabrizio, A. E. Nikolaenko, N. I. Zheludev
    SPIE Photonics Europe, Brussels, Belgium, 16 - 19 Apr 2012
  15. (poster) Engineering interface singularities with metamaterials: planar optical prism and diffraction grating
    T. Roy, A. E. Nikolaenko, E. T. F.Rogers, N. I. Zheludev
    SPIE Photonics Europe, Brussels, Belgium, 16 - 19 Apr 2012
  16. (poster) The Super-oscillating Superlens
    E. T. F. Rogers, T. Roy, T. S. Kao, J. Y. Ou, V. Savinov, S. Sano, J. Lindberg, M. R. Dennis, and N. I. Zheludev
    NANOMETA 2011, Seefeld, Austria, 3-6 Jan 2011