Showing papers by "Amnon Yariv published in 1968"
TL;DR: In this article, mode locking and ultrashort pulses have been produced in a giant-pulse ruby laser with heated nitrobenzene (T > 110°C) or α-chloronaphthalene inside the optical resonator.
Abstract: Mode locking and ultrashort pulses have been produced in a giant‐pulse ruby laser with heated nitrobenzene (T > 110°C) or α‐chloronaphthalene (T > 62°C) inside the optical resonator. 10−11‐sec pulses were observed with the two‐photon fluorescence technique.
21 citations
TL;DR: In this article, the authors explain the nonlinear dielectric response of anisotropic molecules in the incident optical beam with respect to the frequency ω 1 and ω 2.
Abstract: Spectral broadening by the nonlinear dielectric response of anisotropic molecules has been observed and explained by Bloembergen and Lallemand.(1) Any two frequencies, say ω1 and ω2, present in the incident optical beam exert a torque on the molecules at a frequency (ω1-ω2). The resultant oscillation of the average molecular orientation causes a modulation of the dielectric constant at ω1-ω2.
17 citations
TL;DR: In this article, the light emission was associated with a current breakdown that occurred at a threshold field of 12,000 V/cm in highly compensated n-type samples, at room temperature.
Abstract: Linewidth narrowing attributed to superradiance has been observed in near bandgap radiation due to the recombination of impact ionized carriers in n‐type CdTe at room temperature. The light emission was associated with a current breakdown that occurred at a threshold field of 12,000 V/cm in highly compensated n‐type samples.
2 citations