Optical: systems and elements – Optical modulator
Reexamination Certificate
2006-12-19
2006-12-19
Ben, Loha (Department: 2873)
Optical: systems and elements
Optical modulator
C359S299000, C252S511000, C252S582000
Reexamination Certificate
active
07151625
ABSTRACT:
To provide a spatial optical modulation element having a long life free from a deterioration of optical modulation characteristics even if a high power laser beam with an ultra-short pulse is used as a modulation drive light, and having a high response speed when e.g. a light having a wavelength of 1.55 μm is used.A spatial optical modulation element wherein disposed between a prism2and an optical functional material layer3made of an optical functional material with the complex index of refraction changeable by light irradiation, is a low refractive index layer4made of a transparent material with a refractive index lower than the refractive index of the prism2, and carbon nanotubes are used as the optical function material.
REFERENCES:
patent: 6611367 (2003-08-01), Naya et al.
patent: 7094367 (2006-08-01), Harmon et al.
patent: 2006/0146388 (2006-07-01), Nagamura et al.
patent: 05-273503 (1993-10-01), None
patent: 2002-258332 (2002-09-01), None
patent: 2003-121892 (2003-04-01), None
Y.C.-Chen, et al., Applied Physics Letters, Ultrafast Optical Switching Properties of Single-Walled Carbon Nanotube Polymer Composites at 1.55 μm, vol. 81, No. 6, pp. 975-977, Aug. 5, 2002.
M. Ichida, et al., Physica B, Ultrafast Relaxation Dynamics of Photoexcited States in Semiconducting Single-Walled Carbon Nanotubes, No. 323, pp. 237-238 (2002).
Satoshi Tatsuura, et al., Advanced Materials, Semiconductor Carbon Nanotubes as Ultrafast Switching Materials for Optical Telecommunications, vol. 15, No. 6, pp. 534-537, Mar. 17, 2003.
Toshihiko Nagamura, et al., Polymer Preprints, Japan, Ultrafast All-Optical Light Modulation in Guided Mode Thin Films by Photoinduced Complex Refractive Index Changes upon Femtosecond Laser Excitation, vol. 52, No. 12, pp. 3430 and 3431, Sep. 10, 2003.
Youichi Sakakibara, et al., Fullerene Nanotube Sogo Symposium Koen Yoshishu, Nonlinear Optical Property of Carbon Nanotubes and its Application as Saturable Absorbing Device for Optical Fiber Communication, vol. 25, pp. 6 and 7, Jul. 23-25, 2003.
Toshihiko Nagamura, et al., Symposium on Photo Chemistry, Ultrafast Spatial Light Modulation upon Femtosecond Laser Excitation of Guided Mode Thin Films, vol. 2001, p. 229, Sep. 3, 2001, p. 229.
Y. -C. Chen, et al., Lasers and Electro-Optics 2002 (CLEO'02) Technical Digest Summaries, Ultrafast Optical Switch Properties of Single-Wall Carbon Nanotube Polymer Composites at 1.55 μm, vol. 1, p. 660, May 19-24, 2002.
Yo-Sakakibara, et al., AIST Today, Carbon Nanotube o Hikari Tsushin ni Hikari Switch e Aratana Michi o Hiraku, vol. 2, No. 12, pp. 10 and 11, Dec. 1, 2002.
Yoichi Sakakibara, et al., Dai 50 Kai Oyo Butsurigaku Kankei Rengo Koenkai Koen Yokoshu, Saturable Absorption of Semiconductor Single Wall Carbon Nanotube at Optical Telecommunication Wavelengths, p. 548, Mar. 2003.
Satoshi Tatsuura, et al., Dai 50 Kai Oyo Butsurigaku Kankei Rengo Koenkai Koen Yokoshu, Semiconductor Carbon Nanotubes as Ultrafast Switching Materials for Optical Telecommunications, p. 547, Mar. 2003.
Toshihiko Nagamura, et al., Symposium on Photochemistry, High Speed Reflection Type All-Optical Modulation Based on Guided Mode Thin Films Containing Indium Phthalocyanine Derivatives, vol. 2002, p. 425, Sep. 4, 2002.
Iori Yoshida, et al., Bulletin of the Research Institute of Electronics, Intensity Modulation Based on Photoinduced Complex Refractive Index Changes in Guided Mode Photoelectrochromic Polymer Thin Films Upon Femtosecond Excitation, Shizuoka University 35, pp. 9 to 15, Nov. 9, 2000.
U.S. Appl. No. 11/366,470, filed Mar. 3, 2006, Nagamura et al.
Matsukura Ikuo
Nagamura Toshihiko
Asahi Glass Company Limited
Ben Loha
LandOfFree
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