32 citations · 99 across the 6 of their papers we have counts for
7 papers
Extremely Large Nondegenerate Nonlinear Index and Phase Shift in Epsilon-Near-Zero Materials
Sepehr Benis, Natalia Munera, Sanaz Faryadras +2
Epsilon-near-zero (ENZ) materials have emerged as viable platforms for strong nonlinear optical (NLO) interactions. The NLO phase shift in materials exhibiting an ENZ condition is…
Refraction of space-time wave packets in a dispersive medium
Murat Yessenov, Sanaz Faryadras, Sepehr Benis +3
Space-time (ST) wave packets are a class of pulsed optical beams whose spatio-temporal spectral structure results in propagation invariance, tunable group velocity, and fascinating…
Nondegenerate Two-Photon Absorption in GaAs/AlGaAs Multiple Quantum Well Waveguides
Nicholas Cox, Junxiong Wei, Himansu Pattanaik +4
We present femtosecond pump-probe measurements of the nondegenerate (1960nm excitation and 1176--1326nm probe) two-photon absorption spectra of 8 nm GaAs/12nm Al$_{…
Observation of Nondegenerate Two-Photon Gain in GaAs
Matthew Reichert, Arthur L. Smirl, Greg Salamo +2
Two-photon lasers require materials with large two-photon gain (2PG) coefficients and low linear and nonlinear losses. Our previous demonstration of large enhancement of two-photon…
Enhancement of Two-photon Absorption in Quantum Wells for Extremely Nondegenerate Photon Pairs
Himansu S. Pattanaik, Matthew Reichert, Jacob B. Khurgin +2
We recently demonstrated orders of magnitude enhancement of two-photon absorption (2PA) in direct gap semiconductors due to intermediate state resonance enhancement for photons of…
3-D IR imaging with uncooled GaN photodiodes using nondegenerate two-photon absorption
Himansu S. Pattanaik, Matthew Reichert, David J. Hagan +1
We utilize the recently demonstrated orders of magnitude enhancement of extremely nondegenerate two-photon absorption in direct-gap semiconductor photodiodes to perform scanned ima…
Effective Third-Order Nonlinearities in Metallic Refractory Titanium Nitride Thin Films
Nathaniel Kinsey, Akbar Ali Sayed, Devon Courtwright +7
Nanophotonic devices offer an unprecedented ability to concentrate light into small volumes which can greatly increase nonlinear effects. However, traditional plasmonic materials s…