57 citations · 101 across the 6 of their papers we have counts for
6 papers
Extremely large nonlinear response in crystalline quartz at THz frequencies
Soheil Zibod, Payman Rasekh, Murat Yildrim +5
We report on the first experimental observation of a very strong nonlinear response in crystalline quartz in the terahertz (THz) frequency region through THz time-domain spectrosco…
Approaching transform-limited photons from nanowire quantum dots excited above-band
Patrick Laferrière, Aria Yin, Edith Yeung +9
We demonstrate that, even when employing above-band excitation, photons emitted from semiconductor quantum dots can have linewidths that approach their transform-limited values. Th…
Geometry-dependent two-photon absorption followed by free-carrier absorption in AlGaAs waveguides
Daniel H. G. Espinosa, Stephen R. Harrigan, Kashif M. Awan +2
Nonlinear absorption can limit the efficiency of nonlinear optical devices. However, it can also be exploited for optical limiting or switching applications. Thus, characterization…
Terahertz Nonlinear Optical Response of Water Vapor
Payman Rasekh, Akbar Safari, Murat Yildirim +4
We report on the nonlinear spectroscopy of water vapor at THz frequencies. Atmospheric water vapor has a rich spectrum with several strong resonances at frequencies below 3 THz, fa…
Demonstration of Optical Nonlinearity in InGaAsP/InP Passive Waveguides
Shayan Saeidi, Payman Rasekh, Kashif M. Awan +3
We report on the study of the third-order nonlinear optical interactions in InGaAsP/InP strip-loaded waveguides. The material composition and waveguide…
Using surface lattice resonances to engineer nonlinear optical processes in metal nanoparticle arrays
Mikko J. Huttunen, Payman Rasekh, Robert W. Boyd +1
Collective responses of localized surface plasmon resonances, known as surface lattice resonances (SLRs) in metal nanoparticle arrays, can lead to high quality factors (~100), larg…