Optical element, spectroscope and condenser

Details Optical element, spectroscope and condenser Optical element, spectroscope and condenser

2006-05-30

2006-05-30

Spector, David N. (Department: 2873)

Optical: systems and elements

Optical modulator

Having particular chemical composition or structure

C385S129000

Reexamination Certificate

active

07054056

ABSTRACT:
In a photonic crystal1,the refractive index of the medium2,the period of the lattice, and the like are fixed; however, the size of the air holes3gradually varies in the direction of the z axis. Almost all of the light4with a vibration number in the vicinity of 0.61 advances directly at the time of incidence on the crystal; however, the direction of advance varies as the size of the holes decreases. On the other hand, as the vibration number increases, the optical path of the light is greatly bent as shown in5and6.Accordingly, a large variation in the angle of refraction can be caused to occur in light with an extremely small wavelength range, so that light splitting with a good resolution can be accomplished.

REFERENCES:
patent: 6522448 (2003-02-01), Baba et al.
patent: 2001/0012149 (2001-08-01), Lin et al.
patent: 2002/0027696 (2002-03-01), Baba et al.
patent: 2002/0041425 (2002-04-01), Baba et al.
patent: 59-46602 (1984-03-01), None
patent: 2001-091701 (2001-04-01), None
“Fotonikku Kessho Kenkyu no Genjo to Shorai Tembo Current Conditions and Future Development of Photonic Crystal Research” Optoelectronic Industry and Technology Development Association, Mar. 2000, [Partial Translation of pp. 8-9 is provided].

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