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    • 5. 发明申请
    • ELECTRICALLY TUNABLE TERAHERTZ LASER OSCILLATION DEVICE
    • 电动可调TERAHERTZ激光振荡装置
    • WO2008075795A1
    • 2008-06-26
    • PCT/JP2007/075234
    • 2007-12-20
    • CANON KABUSHIKI KAISHASEKIGUCHI, RyotaOUCHI, Toshihiko
    • SEKIGUCHI, RyotaOUCHI, Toshihiko
    • H01S1/02H01S5/0625H01S5/34H01S5/227H01S5/30
    • 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较宽且波长扫描速率相对较高的长振荡波长(THz)的振荡装置。 本发明公开了一种振荡装置,包括:相对于要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结构(104,105),以及能量注入装置(121,122A),并用于注入泵浦能量 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,每个介质的介电常数相对于电磁波的实部为负值。 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)以施加用于改变在与增益介质的边界部分处形成的耗尽区的电场。
    • 8. 发明申请
    • TERAHERTZ FREQUENCY BAND WAVELENGTH SELECTOR
    • TERAHERTZ频带波长选择器
    • WO2004092694A3
    • 2005-02-03
    • PCT/US2004011140
    • 2004-04-09
    • UNIV DELAWAREKOLODZEY JAMESADAM THOMAS NPRATHER DENNIS
    • KOLODZEY JAMESADAM THOMAS NPRATHER DENNIS
    • H01S5/30G02B6/12H01L33/00H01S5/34
    • H01S5/30H01S5/3027H01S5/3031H01S5/305
    • A terahertz (THz) frequency radiation source to emit radiation in a narrow wavelength band within a range of about 3 µm to 3000 pm. This source includes: a broad bandwidth emitter to generate a broad bandwidth emitted wavelength band within the wavelength range; a first planar waveguide optically coupled to the broad bandwidth emitter to transmit the broad bandwidth radiation; a disk resonator evanescently coupled to the first planar waveguide with a resonance wavelength band within the emitted wavelength band; and a second planar waveguide evanescently coupled to the disk resonator to transmit radiation in the narrow wavelength band. The emitted wavelength band has a bandwidth greater than or equal to about .01 times a mid-band wavelength. The resonance wavelength band has a resonance wavelength bandwidth of less than or equal to about .25 times the emitted bandwidth. The narrow wavelength band is substantially equal to the resonance wavelength band.
    • 太赫兹(THz)频率辐射源,其发射在约3μm至3000μm的范围内的窄波段中的辐射。 该源包括:宽带发射器,以在波长范围内产生宽带宽发射波长带; 光学耦合到宽带宽发射器以传输宽带宽辐射的第一平面波导; 光盘谐振器在发射的波长带内以共振波长带ev逝地耦合到第一平面波导; 以及第二平面波导湮灭地耦合到盘谐振器以传输窄波段中的辐射。 发射波长带的带宽大于或等于中频带波长的大约0.01倍。 谐振波长带的共振波长带宽小于或等于发射带宽的大约0.25倍。 窄波长带基本上等于谐振波长带。