Optical device using photonic crystal and light beam...

Optical: systems and elements – Single channel simultaneously to or from plural channels

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C359S322000, C359S323000

Reexamination Certificate

active

07068431

ABSTRACT:
A compact, low-consumption optical device using a photonic crystal is provided. This optical device comprises a photonic crystal designed to have a shape of a dispersion surface with a strong direction dependence at a frequency, and light input means for allowing a light beam having a wavelength determined by said frequency to be incident on said photonic crystal at an incident angle determined from a region with a large change of direction dependence in the shape of the dispersion surface according to the law of conservation of momentum. In case of adopting this incident angle, the light beam can be deflected by the photonic crystal at an angle that is from several ten times to several hundred times larger than of the deflection angle obtained by use of a conventional optical material.

REFERENCES:
patent: 6064506 (2000-05-01), Koops
patent: 6317554 (2001-11-01), Kosaka et al.
patent: 6674954 (2004-01-01), Baba et al.
patent: 6822784 (2004-11-01), Fukshima et al.
patent: 2002/0135863 (2002-09-01), Fukushima et al.
patent: 1 089 095 (2001-04-01), None
patent: 10-090634 (1998-04-01), None
patent: 2001-013439 (2001-01-01), None
Hans W.P. Koops “Photonic Crystals Built by Three-dimensional Additive Lithography Enable Integrated Optics of High Density” Proceedings of the SPIE, SPIE, Bellingham, VA, US, vol. 2849 (Aug. 5, 1996) pp. 248-256, XP000617864, ISSN: 0227-786X.
A. Figotin et al., “Tunable Photonic Crystals” Materials Research Society Symposium Proceedings, Materials Research Society, Pittsburg, PA, U.S., vol. 603 (Nov. 30, 1999), pp. 195-200, XP001034373, ISSN: 0272-9172.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Optical device using photonic crystal and light beam... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical device using photonic crystal and light beam..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical device using photonic crystal and light beam... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3623964

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.