Nonlinear optics, nanophotonics and plasmonics - 8Virtual room: CMC - 1
|Thursday, May 28|
NL-8-28-1 / Machine-Learning-Assisted Photonics
* Alexandra Boltasseva, Purdue University, United States
Zhaxylyk Kudyshev, Purdue University
Vladimir Shalaev, Purdue University
We coupled adversarial autoencoder deep generative network with adjoined topology optimization technique to advance metasurface design. The proposed approach speeds up the optimization search of highly efficient metasurface designs and also provides unparalleled control over the compressed design space distribution. The latter fact assures scalability of the approach to highly-constrained optimization problems.
NL-8-28-2 / Tunable spectral bands of negative extinction in time-variant metamaterials
* Maxim Shcherbakov, Cornell University, United States
Robert Lemasters, Emory University
Jia Song, Emory University
Tianquan Lian, Emory University
Hayk Harutyunyan, Emory University
Gennady Shvets, Cornell University
We present experimental observations of frequency conversion and negative optical extinction in time-variant metasurfaces and their applications to surpassing the time-bandwidth limit in photonics.
NL-8-28-3 / All-optical amplitude and phase control using an epsilon-near-zero-based metasurface
* Mohammad Karimi, University of Ottawa, Canada
Md Zahirul Alam, University of Ottawa
Orad Reshef, University of Ottawa
Jeremy Upham, University of Ottawa
Robert W. Boyd, University of Ottawa
We demonstrate a mechanism for an all-optical control over the phase and amplitude of the scattered fields from an array of gold nanoantennas fabricated over a highly nonlinear ENZ substrate.