Title:
THRUST GENERATING DEVICE AND SPACECRAFT
Document Type and Number:
WIPO Patent Application WO/2022/234669
Kind Code:
A1
Abstract:
A thrust generating device according to the present invention is for generating thrust in an object by irradiating the object with a laser, the thrust generating device comprising: a laser generating device that generates first laser light of a first wavelength and second laser light of a second wavelength different from the first wavelength; and an irradiation device that irradiates the object with the first laser light and the second laser light at the same time. The second wavelength may be a wavelength for which the object has a higher absorptivity than the first wavelength, and the intensity of the second laser light may be weaker than the intensity of the first laser light. Also, the second laser light may be generated by wavelength conversion of the first laser light.
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Inventors:
FUKUSHIMA TADANORI (JP)
ADACHI KAZUMA (JP)
WADA SATOSHI (JP)
EBISUZAKI TOSHIKAZU (JP)
OGAWA TAKAYO (JP)
TSUNO KATSUHIKO (JP)
ADACHI KAZUMA (JP)
WADA SATOSHI (JP)
EBISUZAKI TOSHIKAZU (JP)
OGAWA TAKAYO (JP)
TSUNO KATSUHIKO (JP)
Application Number:
PCT/JP2021/017563
Publication Date:
November 10, 2022
Filing Date:
May 07, 2021
Export Citation:
Assignee:
SKY PERFECT JSAT CORP (JP)
RIKEN (JP)
RIKEN (JP)
International Classes:
B64G1/66
Domestic Patent References:
| WO2020152744A1 | 2020-07-30 |
Foreign References:
| US20110302906A1 | 2011-12-15 |
Other References:
SUGIOKA KOJI: "Micropatterning of Quartz Substrates by Multi-Wavelength Vacuum-Ultraviolet Laser Ablation", JAPANESE JOURNAL OF APPLIED PHYSICS, 1 January 1993 (1993-01-01), pages 6185 - 6189, XP093005211, [retrieved on 20221206], DOI: 10.1143/JJAP.32.6185
"Laser Ablation", 1 January 1996, ELSEVIER, ISBN: 978-0-444-82412-7, article SUGIOKA K., WADA S., OHNUMA Y., NAKAMURA A., TASHIRO H., TOYODA K.: "Multiwavelength irradiation effect in fused quartz ablation using vacuum-ultraviolet Raman laser", pages: 347 - 351, XP093005216, DOI: 10.1016/B978-0-444-82412-7.50062-6
ZHANG J, ET AL.: "PRECISE MICROFABRICATION OF WIDE BAND GAP SEMICONDUCTORS (SIC AND GAN) BY VUV-UV MULTIWAVELENGTH LASER ABLATION", APPLIED SURFACE SCIENCE, ELSEVIER, AMSTERDAM , NL, vol. 127-129, 21 July 1997 (1997-07-21), Amsterdam , NL , pages 793 - 799, XP001086614, ISSN: 0169-4332, DOI: 10.1016/S0169-4332(97)00744-7
K. SUGIOKAS. WADAA. TSUNEMIT. SAKAIH. TAKAIH. MORIWAKIA. NAKAMURAH. TASHIROK. TOYODA: "Micropatterning of Quartz Substrates by Multi-wavelength Vacuum-Ultraviolet Laser Ablation", JPN. J. APPL. PHYS., vol. 32, 1993, pages 6185 - 6189, XP093005211, DOI: 10.1143/JJAP.32.6185
K. SUGIOKAS. WADAY. OHNUMAA. NAKAMURAH. TASHIROK. TOYODA: "Multiwavelength irradiation effect in fused quartz ablation using vacuum-ultraviolet Raman laser", APPL. SURF. SCI., 1996, pages 347 - 351, XP093005216, DOI: 10.1016/B978-0-444-82412-7.50062-6
J. ZHANGK. SUGIOKAS. WADAH. TASHIROK. TOYODAK. MIDORIKAWA: "Precise microfabrication of wide band gap semiconductors (SiC and GaN) by VUV-UV multiwavelength laser ablation", APPL. SURF. SCI., 1998, pages 793 - 799
"Laser Ablation", 1 January 1996, ELSEVIER, ISBN: 978-0-444-82412-7, article SUGIOKA K., WADA S., OHNUMA Y., NAKAMURA A., TASHIRO H., TOYODA K.: "Multiwavelength irradiation effect in fused quartz ablation using vacuum-ultraviolet Raman laser", pages: 347 - 351, XP093005216, DOI: 10.1016/B978-0-444-82412-7.50062-6
ZHANG J, ET AL.: "PRECISE MICROFABRICATION OF WIDE BAND GAP SEMICONDUCTORS (SIC AND GAN) BY VUV-UV MULTIWAVELENGTH LASER ABLATION", APPLIED SURFACE SCIENCE, ELSEVIER, AMSTERDAM , NL, vol. 127-129, 21 July 1997 (1997-07-21), Amsterdam , NL , pages 793 - 799, XP001086614, ISSN: 0169-4332, DOI: 10.1016/S0169-4332(97)00744-7
K. SUGIOKAS. WADAA. TSUNEMIT. SAKAIH. TAKAIH. MORIWAKIA. NAKAMURAH. TASHIROK. TOYODA: "Micropatterning of Quartz Substrates by Multi-wavelength Vacuum-Ultraviolet Laser Ablation", JPN. J. APPL. PHYS., vol. 32, 1993, pages 6185 - 6189, XP093005211, DOI: 10.1143/JJAP.32.6185
K. SUGIOKAS. WADAY. OHNUMAA. NAKAMURAH. TASHIROK. TOYODA: "Multiwavelength irradiation effect in fused quartz ablation using vacuum-ultraviolet Raman laser", APPL. SURF. SCI., 1996, pages 347 - 351, XP093005216, DOI: 10.1016/B978-0-444-82412-7.50062-6
J. ZHANGK. SUGIOKAS. WADAH. TASHIROK. TOYODAK. MIDORIKAWA: "Precise microfabrication of wide band gap semiconductors (SiC and GaN) by VUV-UV multiwavelength laser ablation", APPL. SURF. SCI., 1998, pages 793 - 799
Attorney, Agent or Firm:
IP FIRM SHUWA (JP)
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