Low loss hollow core optical waveguide

Optical waveguides – Planar optical waveguide – Thin film optical waveguide

Reexamination Certificate

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C385S014000, C385S125000, C385S129000, C385S130000, C385S131000, C385S141000

Reexamination Certificate

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07391949

ABSTRACT:
An optical waveguide is constructed so as to comprise a non-solid core surrounded by a solid-state material. The non-solid core has an index of refraction which is lower than the index of refraction of the surrounding solid state material, and light can be transmitted with a low loss through the non-solid core. The non-solid core can extend through at least one of multiple layers of the solid state material, wherein the non-solid core is elevated on a substrate material above at least one topmost layer of the multiple solid state layers lateral to the non-solid core. In an exemplary application, the non-solid core comprises a sample material whose light transmission, absorption, and/or interference characteristics are to be measured.

REFERENCES:
patent: 5343542 (1994-08-01), Kash et al.
patent: 6542231 (2003-04-01), Garrett
patent: 2002/0164547 (2002-11-01), Ferm et al.
patent: 2004/0252957 (2004-12-01), Schmidt et al.
“Hollow-Core Waveguides and 2-D Waveguide Arrays for Integrated Optics of Gases and Liquids,” IEEE Journal of selected topics in quantum electronics, vol. 11, No. 2, Mar./Apr. 2005.
“Integrated ARROW waveguides with hollow cores,” Optics Express 2710, Jun. 14, 2004/ vol. 12, No. 12.
“Design of a Scanning Laser Optical trap for Multiparticle Manipulation,” Review of Scientific Instruments, vol. 71, No. 5, May 2000.

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