Optical waveguides – Integrated optical circuit
Reexamination Certificate
2007-05-01
2007-05-01
Leung, Quyen (Department: 2874)
Optical waveguides
Integrated optical circuit
C385S030000, C356S480000
Reexamination Certificate
active
11473887
ABSTRACT:
A method for measuring the optical absorbance of a sample medium with a microfluidic chip that includes a substrate defining a microfluidic channel, a microresonator positioned within the microfluidic channel, and at least one waveguide or coupling surface evanescently coupled to the microresonator such that only supported Whispering Gallery Mode (WGM) resonance frequencies are transmitted from the waveguide or coupling surface into the microresonator. A sample medium is disposed into the microfluidic channel to substantially envelop the microresonator and a reader is provided to measure at least a portion of the WGM frequencies transmitted out of the microresonator.
REFERENCES:
patent: 4963498 (1990-10-01), Hillman et al.
patent: 6125220 (2000-09-01), Copner et al.
patent: 6281977 (2001-08-01), Paiam et al.
patent: 6490039 (2002-12-01), Maleki et al.
patent: 7095010 (2006-08-01), Scherer et al.
J. C. Knight, G. Cheung, F. Jacques, and T. A. Birks, “Phase-matched excitation of whispering-gallery-mode resonances by a fiber taper”, Optics Letters, Aug. 1, 1997, pp. 1129-1131, vol. 22, No. 15, Optoelectronics Group, School of Physics, University of Bath, Bath BA2 7AY, UK.
M. Selim Unlu, “Resonant-cavity-enhanced devices improve efficiency”, Optoelectronics World magazine, Mar. 1998, pp. 15-20, vol. 34, No. 3, Optoelectronics World (online), PennWell, 1421 South Sheridan, Tulsa, Oklahoma, USA.
Lutfollah Maleki, Vladimir Iltchenko and Xiaotian Steve Yao, “Highly Oblate Microspheroid as an Optical Resonator”, NASA Tech Brief, from JPL New Technology Report NPO-20951, Apr. 1, 2001, 7 pages, vol. 25, No. 4, Jet Propulsion Laboratory California Institute of Technology, Pasadena, California, USA.
Vladimir Iltchenko and Lute Maleki, “Microshpere and Microcavity Optical-Absorption Sensors”, NASA Tech Brief, from JPL New Technology Report NPO-21061, Apr. 1, 2001, 9 pages, vol. 25, No. 4, Jet Propulsion Laboratory California Institute of Technology, Pasadena, California, USA.
M. L. M. Balistreri et al., “Experimental analysis of the whispering-gallery modes in a cylindrical optical microcavity”, J. Opt. Soc. Am. B, Apr. 2001, 7 pages, vol. 18, No. 4, Optical Society of America, USA.
Vladimir Iltchenko and Lute Maleki, “Simple Fiber-Optic Coupling for Microsphere Resonators”, NASA Tech Brief, from JPL New Technology Report NPO-20619, May 2001, pp. 465-471, NPO-20619, Jet Propulsion Laboratory California Institute of Technology, Pasadena, California, USA.
H. Ishikawa, H. Tamaru, and K. Miyano, “Optical coupling between a microresonator and an adjacent dielectric structure: effects of resonator size”, J. Opt. Soc. Am. B, Jun. 2001, pp. 762-769, vol. 18, No. 6, Optical Society of America, USA.
Thomas Lee S., Nibu A. George, P. Sureshkumar, P. Radhakrishnan, C. P. G. Vallabhan and V. P. N. Nampoori, “Chemical sensing with microbent optical fiber”, Optics Letters, Oct. 15, 2001, pp. 1541-1543, vol. 26, No. 20, Optical Society of America, USA.
Dunlap Codding & Rogers P.C.
Nomadics, Inc.
LandOfFree
Methods for measuring optical absorbance of a sample medium does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods for measuring optical absorbance of a sample medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods for measuring optical absorbance of a sample medium will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3733175