The resonance - enhanced multi - photon ionization ( rempi ) spectrum of no in the region of 420 - 680nm is obtained by using optical parameter generator and amplifier ( opg / opa ) as radiation source . the opg / opa was pumped by nd : yag ( quantel ) laser 本工作以超短脉冲( 35ps ) nd : yag激光的三倍频输出( 355nm )泵浦光学参量发生放大器作为激发源,获得了no分子在420 680nm波长范围内的多光子共振离化光谱。
Quantel is a company based in the United Kingdom and founded in 1973 that designs and manufactures digital production equipment for the broadcast television, video production and motion picture industries. They are headquartered in Newbury, Berkshire.