TERAHERTZ FREQUENCY BAND WAVELENGTH SELECTOR

Title:

TERAHERTZ FREQUENCY BAND WAVELENGTH SELECTOR

Document Type and Number:

WIPO Patent Application WO2004092694

Kind Code:

A3

Abstract:

A terahertz (THz) frequency radiation source to emit radiation in a narrow wavelength band within a range of about 3 µm to 3000 pm. This source includes: a broad bandwidth emitter to generate a broad bandwidth emitted wavelength band within the wavelength range; a first planar waveguide optically coupled to the broad bandwidth emitter to transmit the broad bandwidth radiation; a disk resonator evanescently coupled to the first planar waveguide with a resonance wavelength band within the emitted wavelength band; and a second planar waveguide evanescently coupled to the disk resonator to transmit radiation in the narrow wavelength band. The emitted wavelength band has a bandwidth greater than or equal to about .01 times a mid-band wavelength. The resonance wavelength band has a resonance wavelength bandwidth of less than or equal to about .25 times the emitted bandwidth. The narrow wavelength band is substantially equal to the resonance wavelength band.

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Inventors:

KOLODZEY JAMES (US)
ADAM THOMAS N (US)
PRATHER DENNIS (US)

Application Number:

PCT/US2004/011140

Publication Date:

February 03, 2005

Filing Date:

April 09, 2004

Export Citation:

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Assignee:

UNIV DELAWARE (US)
KOLODZEY JAMES (US)
ADAM THOMAS N (US)
PRATHER DENNIS (US)

International Classes:

H01S5/30; (IPC1-7): H01S5/30; H01S5/34; H01L33/00; G02B6/12

Domestic Patent References:

WO2001027692A1	2001-04-19
WO2001022139A1	2001-03-29

Foreign References:

US5914497A	1999-06-22
US20020094150A1	2002-07-18

Other References:

ALTUKHOV I V ET AL: "Towards Si1-xGex quantum-well resonant-state terahertz laser", APPLIED PHYSICS LETTERS, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, vol. 79, no. 24, 10 December 2001 (2001-12-10), pages 3909 - 3911, XP012029605, ISSN: 0003-6951
SENICHI SUZUKI ET AL: "INTEGRATED-OPTIC RING RESONATORS WITH TWO STACKED LAYERS OF SILICA WAVEGUIDE ON SI", IEEE PHOTONICS TECHNOLOGY LETTERS, IEEE INC. NEW YORK, US, vol. 4, no. 11, 1 November 1992 (1992-11-01), pages 1256 - 1258, XP000328573, ISSN: 1041-1135

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