摘要
用氮分子激光器泵浦的两台染料激光器(输出光频率分别为ω_1和ω_2)二步激发钙蒸气,由不等频二步共振和不等频双光子共振四波混频ω_1+ω_2-ω_(IR)=ω_(UV)(ω_(IR)为红外受激辐射频率),产生了波长为272.2nm的紫外相干辐射,并对其激发和辐射特性进行了研究.
By using two dye lasers (their output frequencies are ω_1 and ω_2, respectively)pumped by a N_2 laser UV(272.2nm) coherent radiation is generated in unequal frequency two-step or two-photon resonant four-wave mixing process ω_(UV)=ω_1+ω_2 -ω_(IR) in Ca vapor (ω_(IR) is the frequency of IR stimulated radiation).The character of excitation and radiation is researched.
出处
《华东师范大学学报（自然科学版）》
CAS
CSCD
1990年第2期37-41,共5页
Journal of East China Normal University(Natural Science)
基金
国家自然科学基金
关键词
相干辐射
四波混频
双光子
钙蒸气
two-step resonance two-photon resonance four-wave mixing UV coherent radiation
