Abstract:
Picosecond optical pulses of periodicity T are displayed by generating the convolution of the optical pulses in a nonlinear optical medium (e.g., a KDP crystal) with a train of picosecond sampling pulses of periodicity nT+ delta T, where n is a simple fraction and delta T is a small fraction of T. The output of the nonlinear medium is detected and displayed on a conventional oscilloscope. The oscilloscope trace is a sampled display of the optical pulses with picosecond resolution and time scale magnification (T/ delta T+1).
Abstract:
Lasing at ultraviolet and other wavelengths is achieved in a two-photon laser employing organic liquid mediums such as benzene solutions of 9, 10-dibromoanthracene, 9-methylanthracene and 9, 10-dimethylanthracene.