In this one-hour seminar, Igal Brener, Sandia National Laboratories, will be presenting a talk titled, “Emission Control with Semiconductor Metasurfaces: from Entangled Photons to Ultrafast Beam Steering.”
Abstract – Metasurfaces made from III-V semiconductors offer an excellent
platform for nonlinear optics and control of spontaneous emission. Our group
has been working for several years on several topics in light matter interaction
such as strong coupling 1, emission control 2 and optical nonlinearities. 3-5 I will
present a brief overview of some of these activities and will describe in more
detail our recent efforts in entangled photon pair generation from metasurfaces
containing quasi bound-states-in-the-continuum (q-BIC) resonances 6 and
ultrafast beam steering of spontaneous emission. 7
1. “Strong coupling in the sub-wavelength limit using metamaterial nanocavities”, A. Benz et al., Nat.
Commun 4, 2882 (2013).
2. “Light-Emitting Metasurfaces: Simultaneous Control of Spontaneous Emission and Far-Field Radiation”,
S. Liu et al., Nano Lett. 18, 6906 (2018).
3. “III–V Semiconductor Nanoresonators—A New Strategy for Passive, Active, and Nonlinear All-Dielectric
Metamaterials”, Sheng Liu et al., Advanced Optical Materials 4, 1457 (2016).
4. “An All-Dielectric Polaritonic Metasurface with a Giant Nonlinear Optical Response”, Raktim Sarma et
al., Nano Lett. 22, 896 (2022).
5. “An all-dielectric metasurface as a broadband optical frequency mixer”, Sheng Liu et al., Nat. Comm., 1
6. “Resonant metasurfaces for generating complex quantum states”, T. Santiago-Cruz et al., Science 377,
7. “Sub-picosecond steering of ultrafast incoherent emission from semiconductor metasurfaces”, Prasad
P. Iyer et al., Nature Photonics (2023).
Bio – Dr. Igal Brener is a Senior Scientist at Sandia National Laboratories in
Albuquerque, NM. He received his doctorate degree in physics from the
Technion (Haifa) in 1991 after working in chip design for National
Semiconductors. He was postdoc and then research staff at Bell Laboratories
in NJ from 1991 until 2000, in the Optical Physics Research Department. He
then spent 4 yeas in industry founding startups (Spectralane), working for
startups (Tellium, Prealux) and for medium to large companies (Amersham
Biosciences, GE Healthcare). He joined Sandia National Laboratories,
Albuquerque, NM, in 2004. He is co-thrust leader for Nanophotonics at the
Center for Integrated Nanotechnologies (a nanoscience user facility for the
Department of Energy jointly operated by Sandia and Los Alamos) and is
also research full professor at the University of New Mexico. He has authored
more than 200 refereed publications and has received 29 patents. Dr. Brener
is a fellow of the Optical Society of America, the IEEE and the American
This is an in-person seminar located in the 5th fl. Data Viz Room. If you opt to join via Zoom use:
ID 890 2009 5006
For further information, please contact: