Luminescence from ZnSe excited by picosecond mid-infrared FEL pulses

Autor: Toshiji Suzuki, T. Tomimasu, T. Mitsuyu
Rok vydání: 1998
Předmět:
Zdroj: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 144:172-175
ISSN: 0168-583X
DOI: 10.1016/s0168-583x(98)00306-1
Popis: We have observed blue band-edge emission from a ZnSe crystal under irradiation of mid-infrared picosecond free electron laser (FEL) pulses. The emission characteristics including spectrum, excitation power dependence, excitation wavelength dependence, and decay time have been investigated. The experimental results have indicated that it is difficult to understand the excitation process by multiphoton excitation, thermal excitation, or excitation through mid-gap levels.
Databáze: OpenAIRE