Spectral filter for green and longer wavelengths

Details Spectral filter for green and longer wavelengths Spectral filter for green and longer wavelengths

2006-11-21

2006-11-21

Kianni, Kaveh (Department: 2883)

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

C385S146000

Reexamination Certificate

active

07139459

ABSTRACT:
Visible and infra-red spectral filters based on arrays of uncoupled identical waveguides having coherently modulated cross sections offer many unique advantages, such as independence of the spectral position of the Bragg-resonance based transmission or reflection features on the angle of light incidence. The resulting spectral filters are mechanically and optically stable, do not degrade over time, and offer superior transmittance for use as band pass, narrow band pass, band blocking, short pass and long pass filters. Such filters are useful for a wide variety of applications including but not limited to biomedical analysis systems, spectroscopy and optical communications systems.

REFERENCES:
patent: 4689021 (1987-08-01), Vasiliev et al.
patent: 4689125 (1987-08-01), Burrus et al.
patent: 4874484 (1989-10-01), Foell et al.
patent: 5262021 (1993-11-01), Lehmann et al.
patent: 5348627 (1994-09-01), Propst et al.
patent: 5431766 (1995-07-01), Propst et al.
patent: 5544772 (1996-08-01), Soave et al.
patent: 5645684 (1997-07-01), Keller
patent: 5987208 (1999-11-01), Gruning et al.
patent: 5997713 (1999-12-01), Beetz, Jr. et al.
patent: 6004450 (1999-12-01), Northrup et al.
patent: 6301421 (2001-10-01), Wickham et al.
patent: 6468823 (2002-10-01), Scherer et al.
patent: 6483640 (2002-11-01), Tonucci et al.
patent: 6521149 (2003-02-01), Mearini et al.
patent: 6526191 (2003-02-01), Geusic et al.
patent: 6711200 (2004-03-01), Scherer et al.
patent: 2003/0123827 (2003-07-01), Salerno et al.
patent: 2004/0004779 (2004-01-01), Kochergin et al.
patent: 2004/0069948 (2004-04-01), Feisst et al.
patent: 2005/0058414 (2005-03-01), Kochergin
patent: 2005/0175304 (2005-08-01), Romagnoli et al.
patent: 4202454 (1993-07-01), None
patent: 100 63 151 (2002-06-01), None
Lehmann et al., Optical shortpass filters based on macroporous siliconAppl. Phys. Lett.V 78, N.5, Jan. 2001.
J. Schilling et al., “Three-dimensional photonic crystals based on Macroporous silicon with modulated pore diameter”,Appl. Phys. Lett.V 78, N.9, Feb. 2001.
S. Izuo et al., “A novel electrochemical etching technique for n-type silicon,”Sensors and ActuatorsA 97-98 (2002), pp. 720-724.
A. Vyatkin et al., “Random and Ordered Macropore Formation in p-Type Silicon,”J. of the Electrochem. Soc., 149 (1), pp. G70-G76 (2002).
S. Langa et al., “Observation of crossing pores in anodically etched n-GaAs,”Appl. Phys. Lett.78(8), pp. 1074-1076, (2001).
M. Christophersen et al., “A comparison of pores in silicon and pores in III-V compound mateials”,Phys. Stat. Sol. A, 197 (1), pp. 197-203, (2003).
H. Föll et al., “Pores in III-V Semiconductors”,Adv. Materials, Review, 2003, 15, pp. 183-198, (2003).
S. Langa et al.,Phys. Stat. Sol. A, 197 (1), p. 77, (2003) “Single crystalline 2D porous arrays obtained by self organization in n-InP” (pp. 77-82).
K. Barla et al., “X-Ray Topographic Characterization of Porous Silicon Layers,”J. Cryst. Growth, 68, North-Holland, Amsterdam, p. 721-726 (1984).
B.H. Erne et al., “Porous Etching: A Means to Enhance the Photo response of Indirect Semiconductors,”Adv. Mater., 7, p. 739-742 (1995).
P.A. Kohl et al., J. Electrochem. Soc., 130, p. 2288 (1983).
Schmuki P. et al.,Physica Status Solidi A, “Pore Formation on n-InP,” 182 (1), pp. 51-61, (2000).
S. Langa et al., “Formation of Porous Layers with Different Morphologies during Anodic Etching of n-InP,”J. Electrochem. Soc. Lett., 3 (11), p. 514-516, (2000).
D.J. Lockwood et al., “Optical properties of porous GaAs,”Physica E, 4, pp. 102-110 (1999).
Schmulki, P. et al., “Formation of porous layers on InSb(100) by anodization,”Phys. Stat. Sol.(a) 197, No. 1, pp. 71-76 (2003).
Langa, S. et al., “Voltage oscillations—an emergent property at high density pore growth,”Phys. Stat. Sol.(a) 197, No. 1, pp. 186-191 (2003).
Vladimir Kochergin, “Omnidirectional Optical Filters,” Kluwer Academic Publishers (2003).
Tokranova et al., “Fabrication of MEMS Devices with Macroporous Silicon Membrane Embedded with Modulated 3D Structures for Optimal Cell Sorting,”Mat. Res. Soc. Symp. Proc.vol. 752, pp. 315-320 (Dec. 2, 2002).
H H. Föll et al., “Porous III-V compound semiconductors: formation, properties, and comparison to silicon”,Phys. Stat. Sol. A, 197 (1), pp. 61-70 (2003).
S. Langa et al.,Phys. Stat. Sol. (A), 195 (3), “Electrochemical pore etching in Ge,” R4-R6 (2003).
Macleod H.A.,Thin-Film Optical Filters, 3rd ed., Institute of Physics Publishing, 2001.

Affiliated with

Also associated with

Rating

Spectral filter for green and longer wavelengths does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spectral filter for green and longer wavelengths, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectral filter for green and longer wavelengths will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3633620