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    • 4. 发明申请
    • Frequency modulation structure and method utilizing frozen shockwave
    • 使用冻结冲击波的调频结构和方法
    • US20080084604A1
    • 2008-04-10
    • US11545138
    • 2006-10-10
    • Delmar L. BarkerWilliam R. OwensAbram G. Young
    • Delmar L. BarkerWilliam R. OwensAbram G. Young
    • G02F1/35
    • G02F1/125
    • A system and method for modulating the frequency of electromagnetic radiation utilizes a frozen shockwave in a photonic band gap structure. The structure provides a discontinuity in lattice constant that functions as a shockwave, and that does not shift its position within the structure. In addition the modulation device or structure includes an acoustic pulse generator, such as a piezoelectric transducer coupled to one end of the photonic band gap structure. The acoustic pulse generator may be driven to produce a periodic pulse in the photonic band gap structure. The frozen shockwave, a defect or discontinuity in the photonic band gap structure, is used to hold incoming electromagnetic radiation in place. The acoustic pulse passing through the photonic band gap structure Doppler shifts the frequency of the radiation. The frequency-shifted radiation is then ejected out of the frozen shockwave portion of the photonic band gap structure.
    • 用于调制电磁辐射频率的系统和方法利用光子带隙结构中的冻结冲击波。 该结构提供了作为冲击波起作用的晶格常数的不连续性,并且不会在结构内移动其位置。 此外,调制装置或结构包括声脉冲发生器,例如耦合到光子带隙结构的一端的压电换能器。 可以驱动声脉冲发生器以在光子带隙结构中产生周期性脉冲。 使用冷冻冲击波,光子带隙结构中的缺陷或不连续性来保持进入的电磁辐射。 穿过光子带隙结构的声脉冲多普勒频移辐射。 然后将频移辐射从光子带隙结构的冷冻冲击波部分中排出。
    • 8. 发明授权
    • Frequency modulation structure and method utilizing frozen shockwave
    • 使用冻结冲击波的调频结构和方法
    • US07724420B2
    • 2010-05-25
    • US11545138
    • 2006-10-10
    • Delmar L. BarkerWilliam R. OwensAbram G. Young
    • Delmar L. BarkerWilliam R. OwensAbram G. Young
    • G02F1/35
    • G02F1/125
    • A system and method for modulating the frequency of electromagnetic radiation utilizes a frozen shockwave in a photonic band gap structure. The structure provides a discontinuity in lattice constant that functions as a shockwave, and that does not shift its position within the structure. In addition the modulation device or structure includes an acoustic pulse generator, such as a piezoelectric transducer coupled to one end of the photonic band gap structure. The acoustic pulse generator may be driven to produce a periodic pulse in the photonic band gap structure. The frozen shockwave, a defect or discontinuity in the photonic band gap structure, is used to hold incoming electromagnetic radiation in place. The acoustic pulse passing through the photonic band gap structure Doppler shifts the frequency of the radiation. The frequency-shifted radiation is then ejected out of the frozen shockwave portion of the photonic band gap structure.
    • 用于调制电磁辐射频率的系统和方法利用光子带隙结构中的冷冻冲击波。 该结构提供了作为冲击波起作用的晶格常数的不连续性,并且不会在结构内移动其位置。 此外,调制装置或结构包括声脉冲发生器,例如耦合到光子带隙结构的一端的压电换能器。 可以驱动声脉冲发生器以在光子带隙结构中产生周期性脉冲。 使用冷冻冲击波,光子带隙结构中的缺陷或不连续性来保持进入的电磁辐射。 穿过光子带隙结构的声脉冲多普勒频移辐射。 然后将频移辐射从光子带隙结构的冷冻冲击波部分中排出。
    • 10. 发明申请
    • ACOUSTIC CRYSTAL SONOLUMINESCENT CAVITATION DEVICES AND IR/THZ SOURCES
    • 声学晶体光声器件和IR / THZ源
    • US20110001063A1
    • 2011-01-06
    • US12497367
    • 2009-07-02
    • Delmar L. BarkerWilliam R. Owens
    • Delmar L. BarkerWilliam R. Owens
    • G21G4/00
    • G21B3/00Y02E30/18
    • An acoustic crystal structure includes defect cavities that concentrate the driving pressure from applied sound waves into the cavities to cavitate gas bubbles in a liquid to produce sonoluminescence. This device may be used to study sonoluminescence or cavitation or to perform sonochemistry, nuclear fusion etc. in the cavities. A waveguide may be operatively coupled to the acoustic crystal to extract, collect and route a band of electromagnetic (EM) radiation around a specified source wavelength to an output port for emission by an antenna to provide an EM source. The waveguide may, for example, be a photonic crystal defect waveguide, a photonic crystal optical fiber or Sommerfeld waveguide. The marriage of the sonoluminescence phenomena with an acoustic crystal and embedded waveguide provides for an efficient source of narrow or broad band IR or THz radiation
    • 声学晶体结构包括将来自施加的声波的驱动压力集中到空腔中以使液体中的气泡气蚀以产生声发光的缺陷腔。 该装置可用于研究发光或空化或在空腔中进行声化学,核聚变等。 波导可以可操作地耦合到声晶体以提取,收集和布置围绕特定源波长的电磁(EM)辐射带到达输出端口,以通过天线发射以提供EM源。 波导可以例如是光子晶体缺陷波导,光子晶体光纤或Sommerfeld波导。 声发光现象与声学晶体和嵌入式波导的结合提供了一种有效的窄带或宽带IR或THz辐射源