Title:
FREQUENCY CONVERTER USING OPTICAL EXCITATION SURFACE PLASMA AND ITS METHOD
Document Type and Number:
WIPO Patent Application WO/2004/070939
Kind Code:
A1
Abstract:
A frequency converter having no solid-state devices having nonlinear characteristics and no complex resonator structure and operable in a wide frequency range from microwave frequencies to terahertz wave frequencies. An input section (1) inputs an input wave into a high-frequency transmission line (2). A waveguide portion of an output section (6) reflects the input wave. A laser light source (4) inputs a laser beam into an optical delay circuit (5). The optical delay circuit (5) delays the laser beam and directs the delayed laser beam into a high-frequency transmission line (2) and a substrate (3). The laser beam transmitted through the optical delay circuit (5) produces an electron-hole plasma over the surface of the substrate (3) such as of a semiconductor thereby to short-circuit the high-frequency transmission line (2) and to reflect the input wave. The reflection point moves at high speed together with the laser beam, thereby converting the frequency on the same principle as the Doppler effect. The output section (6) total-reflects the input wave and takes out only an output wave.
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Inventors:
BAE JONGSUCK (JP)
Application Number:
PCT/JP2004/001327
Publication Date:
August 19, 2004
Filing Date:
February 09, 2004
Export Citation:
Assignee:
JAPAN SCIENCE & TECH AGENCY (JP)
BAE JONGSUCK (JP)
BAE JONGSUCK (JP)
International Classes:
H03D7/00; H03B19/00; (IPC1-7): H03D7/00
Foreign References:
| JPH10206918A | 1998-08-07 | |||
| JPH03186822A | 1991-08-14 |
Other References:
JONGSUCK BAE, MIZUNO KOJI: "Hikari reiki handotai plasma o mochiita doppler shift-gata shuhasu hensu", THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS GIJUTSU KENKYU HOKOKU, vol. 103, no. 234, 24 July 2003 (2003-07-24), pages 1 - 6, XP002904054
JONGSUCK BAE, MIZUNO KOJI: "Hikari reiki handotai plasma o mochiita shuhasu up converter", 2003 NEN THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, SOGO TAIKAI KOEN RONBUNSHU ELECTRONICS 1, 3 March 2003 (2003-03-03), pages 344, XP002904055
LAMPE M. ET AL.: "Submillimeter-wave production by upshifted reflection from a moving ionization front", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. MTT-25, no. 6, June 1977 (1977-06-01), pages 556 - 558, XP002904056
LAMPE MARTIN AND OTT EDWARD: "Interaction of electromagnetic waves with a moving ionization front", THE PHYSICS OF FLUIDS, vol. 21, no. 1, January 1978 (1978-01-01), pages 42 - 54, XP002904057
YUGAMI NOBORU ET AL.: "Experimental observation of short-pulse upshifted frequency microwaves from a laser-created overdense plasma", PHYSICAL REVIEW E PART 2B, vol. 65, no. 3, March 2002 (2002-03-01), pages 036505-1 - 036505-5, XP002904058
HASHIMSHONY D. AND ZIGLER A.: "Conversion of electrostatic to electromagnetic waves by super-luminouse ionization fronts", PHYSICAL REVIEW LETTERS, vol. 86, no. 13, 26 March 2001 (2001-03-26), pages 2806 - 2809, XP002904059
ITO HIROSHI, SODA KIYOSHI: "Kosoku ido kyokai ni yoru denjiha no doppler shuhasu sen'i", OYO BUTSURI, vol. 48, no. 7, 10 July 1979 (1979-07-10), pages 616 - 622, XP002904060
SCHERBATKO IGOR: "Double-doppler wavelength conversion of infrared optical pulses by moving grating of reactive index in semiconductors", OPTICAL AND QUANTUM ELECTRONICS, vol. 31, no. 9/10, October 1999 (1999-10-01), pages 965 - 979, XP002904061
JONGSUCK BAE, MIZUNO KOJI: "Hikari reiki handotai plasma o mochiita shuhasu up converter", 2003 NEN THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, SOGO TAIKAI KOEN RONBUNSHU ELECTRONICS 1, 3 March 2003 (2003-03-03), pages 344, XP002904055
LAMPE M. ET AL.: "Submillimeter-wave production by upshifted reflection from a moving ionization front", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. MTT-25, no. 6, June 1977 (1977-06-01), pages 556 - 558, XP002904056
LAMPE MARTIN AND OTT EDWARD: "Interaction of electromagnetic waves with a moving ionization front", THE PHYSICS OF FLUIDS, vol. 21, no. 1, January 1978 (1978-01-01), pages 42 - 54, XP002904057
YUGAMI NOBORU ET AL.: "Experimental observation of short-pulse upshifted frequency microwaves from a laser-created overdense plasma", PHYSICAL REVIEW E PART 2B, vol. 65, no. 3, March 2002 (2002-03-01), pages 036505-1 - 036505-5, XP002904058
HASHIMSHONY D. AND ZIGLER A.: "Conversion of electrostatic to electromagnetic waves by super-luminouse ionization fronts", PHYSICAL REVIEW LETTERS, vol. 86, no. 13, 26 March 2001 (2001-03-26), pages 2806 - 2809, XP002904059
ITO HIROSHI, SODA KIYOSHI: "Kosoku ido kyokai ni yoru denjiha no doppler shuhasu sen'i", OYO BUTSURI, vol. 48, no. 7, 10 July 1979 (1979-07-10), pages 616 - 622, XP002904060
SCHERBATKO IGOR: "Double-doppler wavelength conversion of infrared optical pulses by moving grating of reactive index in semiconductors", OPTICAL AND QUANTUM ELECTRONICS, vol. 31, no. 9/10, October 1999 (1999-10-01), pages 965 - 979, XP002904061
Attorney, Agent or Firm:
Hashizume, Takeshi (Ginza 3-chome Chuo-ku, Tokyo, JP)
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