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    • 9. 发明申请
    • ELECTRICALLY TUNABLE TERAHERTZ LASER OSCILLATION DEVICE
    • 电动TERNABLE TERAHERTZ激光振荡器件
    • WO2008075795B1
    • 2008-09-12
    • PCT/JP2007075234
    • 2007-12-20
    • CANON KKSEKIGUCHI RYOTAOUCHI TOSHIHIKO
    • SEKIGUCHI RYOTAOUCHI TOSHIHIKO
    • H01S1/02H01S5/0625H01S5/227H01S5/30H01S5/34
    • H01S1/02B82Y20/00H01S5/06255H01S5/06256H01S5/2213H01S5/227H01S5/3027H01S5/3031H01S5/3402H01S5/3422
    • To provide an oscillation device having a long oscillation wavelength (THz) in which wavelength variable width is relatively broad and wavelength sweep rate is relatively high. An oscillation device includes a gain medium (103) having a gain with respect to an electromagnetic wave to be oscillated, cavity structures (104, 105) for resonating the electromagnetic wave, and energy injection means (121, 122A) and for injecting pumping energy into the gain medium. The gain medium is sandwiched between a first negative permittivity medium (102, 112) and a second magnetic permittivity medium (101, 111) each of which real part of permittivity with respect to the electromagnetic wave is negative. Electric field application means (122B) is provided for at least one of the first negative permittivity medium and the second negative permittivity medium to apply an electric field for changing a depletion region formed at a boundary part with the gain medium.
    • 为了提供具有波长可变宽度相对宽且波长扫描速率相对较高的长振荡波长(THz)的振荡装置。 振荡装置包括:相对于待振荡的电磁波具有增益的增益介质(103),用于谐振电磁波的腔体结构(104,105);以及能量注入装置(121,122A),并用于喷射泵浦能量 进入增益介质。 增益介质夹在第一负介电常数介质(102,112)和第二介电常数介质(101,111)之间,其中相对于电磁波的介电常数的实部为负。 为第一负介电常数介质和第二负介电常数介质中的至少一个提供电场施加装置(122B),以施加用于改变形成在增益介质的边界部分处的耗尽区的电场。