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…
Twist-tuned suppression of higher-order modes in single-ring hollow-core photonic crystal fibers
N. N. Edavalath, M. C. Günendi, R. Beravat +4
Optimum suppression of higher order modes in single-ring hollow-core photonic crystal fibers (SR-PCFs) occurs when the capillary-to-core diameter ratio d/D = 0.68. Here we report t…
Microcavity design for low threshold polariton condensation with ultrashort optical pulse excitation
C. Poellmann, U. Leierseder, E. Galopin +5
We present a microcavity structure with a shifted photonic stop-band to enable efficient non-resonant injection of a polariton condensate with spectrally broad femtosecond pulses.…