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    • 5. 发明授权
    • Electromagnetic wave generating device
    • 电磁波发生装置
    • US07599409B2
    • 2009-10-06
    • US10587844
    • 2004-10-29
    • Jun-ichi NishizawaKen SutoTetsuo SasakiTadao TanabeTomoyuki Kimura
    • Jun-ichi NishizawaKen SutoTetsuo SasakiTadao TanabeTomoyuki Kimura
    • H01S3/10
    • G02F1/3534G02F2203/13
    • An electromagnetic wave generator encompasses a first pump beam emitter (2) configured to emit a first pump beam (hv1) having a wavelength larger than one micrometer; a second pump beam emitter (25) configured to emit a wavelength-tunable second pump beam (hv2) having a wavelength larger than one micrometer, the wavelength of which is different from the wavelength of the first pump beam (hv1); a nonlinear optical crystal (19) configured to generate an electromagnetic wave (hv3) of a difference frequency between the first pump beam (hv1) and second pump beam (hv2); and an optical system (M1, M2, 18) configured to irradiate the first pump beam (hv1) and second pump beam (hv2) to the nonlinear optical crystal (19), by adjusting an external intersection angle between the first pump beam (hv1) and second pump beam (hv2) within 0.5° at the difference frequency of 1 THz. Here, a frequency-tunable terahertz electromagnetic wave (hv3) is generated in the nonlinear optical crystal (19), by changing the frequency of the second pump beam (hv2), being liked with the change of the external intersection angle.
    • 电磁波发生器包括配置成发射波长大于1微米的第一泵浦光束(hv1)的第一泵浦光束发射器(2) 第二泵浦光束发射器(25),被配置为发射波长大于一微米的波长可调谐的第二泵浦光束(hv2),其波长不同于第一泵浦光束(hv1)的波长; 配置为产生第一泵浦光束(hv1)和第二泵浦光束(hv2)之间的差频的电磁波(hv3)的非线性光学晶体(19)。 以及配置为通过调整第一泵浦光束(hv1)和第二泵浦光束(hv1)之间的外部交叉角度将第一泵浦光束(hv1)和第二泵浦光束(hv2)照射到非线性光学晶体(19)的光学系统(M1,M2, )和第二泵浦光束(hv2)在0.5Hz内,差频为1THz。 这里,通过改变第二泵浦光束(hv2)的频率,在非线性光学晶体(19)中产生频率可调谐的太赫兹电磁波(hv3),随着外部交叉角的变化而被喜欢。
    • 6. 发明申请
    • Electromagnetic wave generating device
    • 电磁波发生装置
    • US20070160093A1
    • 2007-07-12
    • US10587844
    • 2004-10-29
    • Jun-ichi NishizawaKen SutoTetsuo SasakiTadao TanabeTomoyuki Kimura
    • Jun-ichi NishizawaKen SutoTetsuo SasakiTadao TanabeTomoyuki Kimura
    • H01S3/10H01S3/093
    • G02F1/3534G02F2203/13
    • An electromagnetic wave generator encompasses a first pump beam emitter (2) configured to emit a first pump beam (hv1) having a wavelength larger than one micrometer; a second pump beam emitter (25) configured to emit a wavelength-tunable second pump beam (hv2) having a wavelength larger than one micrometer, the wavelength of which is different from the wavelength of the first pump beam (hv1); a nonlinear optical crystal (19) configured to generate an electromagnetic wave (hv3) of a difference frequency between the first pump beam (hv1) and second pump beam (hv2); and an optical system (M1, M2, 18) configured to irradiate the first pump beam (hv1) and second pump beam (hv2) to the nonlinear optical crystal (19), by adjusting an external intersection angle between the first pump beam (hv1) and second pump beam (hv2) within 0.5° at the difference frequency of 1 THz. Here, a frequency-tunable terahertz electromagnetic wave (hv3) is generated in the nonlinear optical crystal (19), by changing the frequency of the second pump beam (hv2), being liked with the change of the external intersection angle.
    • 电磁波发生器包括被配置为发射波长大于1微米的第一泵浦波束(第一泵浦光束)的第一泵浦光束发射器(2) 第二泵浦光束发射器(25),被配置为发射波长大于1微米的波长可调谐的第二泵浦光束(波长2π),其波长不同于第一泵浦的波长 光束(hv <1); 一种非线性光学晶体(19),被配置为产生第一泵浦光束(hv <1> 1)和第二泵浦光束(hv)之间的差频的电磁波(hv 3/3) 2 ); 以及被配置为照射第一泵浦光束(hv1> 1)和第二泵浦光束(...)的光学系统(M 1,M 2 2,18) 通过调节第一泵浦光束(hv <1>)和第二泵浦光束(hv> 1 )之间的外部交叉角度,将非线性光学晶体(19) 2°)在0.5Hz内,差频为1THz。 这里,在非线性光学晶体(19)中通过改变第二泵浦光束的频率(hv> 2 )产生频率可调谐的太赫兹电磁波(hv 3/3) ),喜欢与外部交叉角的变化。