4 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…
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…