Radiant energy – Invisible radiant energy responsive electric signalling – With means to inspect passive solid objects
Reexamination Certificate
2011-08-23
2011-08-23
Porta, David P (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
With means to inspect passive solid objects
C356S432000
Reexamination Certificate
active
08003947
ABSTRACT:
A system includes a transmitter is configured to transmit an electromagnetic signal through a sample cell (including a sample medium) to a receiver, which is configured to receive the electromagnetic signal and another electromagnetic signal for mixing therewith. Propagation paths of the signals to the transmitter and receiver include a first propagation path of the electromagnetic signal to the transmitter, and a second propagation path of the other electromagnetic signal to the receiver. The arrangement, which is located along either or each of the propagation paths of signals to the transmitter and receiver, is configured to alter the length of a respective propagation path. And the processor configured to recover an amplitude and phase of the transmitted electromagnetic signal, and calculate a complex index of refraction of the sample medium as a function of the amplitude and phase of the transmitted electromagnetic signal.
REFERENCES:
patent: 2779230 (1957-01-01), White
patent: 5267019 (1993-11-01), Whittaker et al.
patent: 5818578 (1998-10-01), Inman et al.
patent: 5883518 (1999-03-01), Borden
patent: 5903358 (1999-05-01), Zare et al.
patent: 5966019 (1999-10-01), Borden
patent: 6348683 (2002-02-01), Verghese et al.
patent: 6466322 (2002-10-01), Paldus et al.
patent: 6486474 (2002-11-01), Owen et al.
patent: 6500618 (2002-12-01), Woolard et al.
patent: 6865198 (2005-03-01), Taubman
patent: 7174037 (2007-02-01), Arnone et al.
patent: 7271594 (2007-09-01), Abreu et al.
patent: 7291839 (2007-11-01), Demers et al.
patent: 7352463 (2008-04-01), Bounaix
patent: 2002/0067480 (2002-06-01), Takahashi
patent: 2004/0114939 (2004-06-01), Taylor
patent: 2008/0049233 (2008-02-01), De Groot
patent: WO 03/005510 (2003-01-01), None
patent: WO 2004/083796 (2004-09-01), None
Armerding, W. et al.,Multipass Optical Absorption Spectroscopy: a Fast-Scanning Laser Spectrometer for the in situ Determination of Atmospheric Trace-Gas Components, in Particular OH, Applied Optics, vol. 35, No. 21, (1996), pp. 4206-4219.
Auton, J. P.,Infrared Transmission Polarizers by Photolithography, Applied Optics, vol. 6, No. 6, (1967), pp. 1023-1027.
Blickensderfer, R. P. et al.,A Long Path, Low Temperature Cell, Applied Optics, vol. 7, No. 11, (1968), pp. 2214-2217.
Brown, E. R. et al.,Coherent Millimeter-Wave Generation by Heterodyne Conversion in Low-Temperature-Grown GaAs Photoconductors, J. Appl. Phys., 73(3), (1993), pp. 1480-1484.
Edwards, T. H.,Multiple-Traverse Absorption Cell Design, Journal of the Optical Society of America, vol. 51, No. 1, (1961), pp. 98-102.
Engel, G. S. et al.,Precise Multipass Herriott Cell Design: Derivation of Controlling Design Equations, Optics Letters, vol. 32, No. 5, (2007), pp. 704-706.
Engeln, R. et al.,Phase Shift Cavity Ring Down Absorption Spectroscopy, Chemical Physics Letters, 262, (1996), pp. 105-109.
Gregory, I. S. et al.,Resonant Dipole Antennas for Continuous-Wave Terahertz Photomixers, [online] [retrieved May 24, 2010]. Retrieved from the Internet: <URL: http://adsabs.harvard.edu/abs/2004ApPhL..85.1622G>. 1 page.
Harmon, S. A. et al.,Part-Per-Million Gas Detection From Long-Baseline THz Spectroscopy, Applied Physics Letters, vol. 85, No. 11, (2004), pp. 2128-2130.
Hayden, A. et al.,Determination of Trace-Gas Amounts in Plumes by the Use of Orthogonal Digital Filtering of Thermal-Emission Spectra, Applied Optics, vol. 35, No. 16, (1996), pp. 2802-2809.
Herbelin, J. M. et al.,Sensitive Measurement of Photon Lifetime and True Reflectances in an Optical Cavity by a Phase-Shift Method, Applied Optics, vol. 19, No. 1, (1980), pp. 144-147.
Lehmann, K. K. et al.,The Superposition Principle and Cavity Ring-Down Spectroscopy; J. Chem. Phys., vol. 105, No. 23, (1996), pp. 10263-10277.
McCubbin, Jr., T. K. et al.,A White-Type Multiple-Pass Absorption Cell of Simple Construction, Applied Optics, vol. 2, No. 7, (1963), pp. 764-765.
Mouret, G. et al.,THz Media Characterization by Means of Coherent Homodyne Detection, Results and Potential Applications, Appl. Phys., B89, (2007), pp. 395-399.
Pickett, H. M. et al.,A New White Type Multiple Pass Absorption Cell, Applied Optics, vol. 9, No. 10, (1970), pp. 2397-2398.
Rayl, G. J.,Multiple Traversal Absorption Cell of Minimum Volume: Design, Applied Optics, vol. 15, No. 4, (1976), pp. 921-928.
Robert, C.,Simple, Stable, and Compact Multiple-Reflection Optical Cell for Very Long Optical Paths, Applied Optics, vol. 46, No. 22, (2007), pp. 5408-5418.
Scherer, J. J. et al.,Cavity Ringdown Laser Absorption Spectroscopy: History, Development, and Application to Pulsed Molecular Beams, Chem. Rev., 97, (1997), pp. 25-51.
Siegman,11.5 Optical-Cavity Mode Frequencies, Chapter 11: Laser Mirrors and Regenerative Feedback, pp. 435-437 (undated), (1986).
Ulrich, P. et al.,Variable Metal Mesh Coupler for Far Infrared Lasers, Applied Optics, vol. 9, No. 11, (1970), pp. 2511-2516.
Verghese, S. et al.,Highly Tunable Fiber-Coupled Photomixers with Coherent Terahertz Output Power, IEEE Transactions on Microwave Theory and Techniques, vol. 45, No. 8, (1997), pp. 1301-1309.
Verghese, S. et al.,Generation and Detection of Coherent Terahertz Waves Using Two Photomixers, Applied Physics Letters, vol. 73, No. 26, (1998), pp. 3824-3826.
Verghese, S. et al.,The Photomixer Transceiver, Invited Paper, SPIE Conference on Terahertz Spectroscopy and Applications, San Jose, CA, Jan. 1999, pp. 7-13.
White, J. U.,Very Long Optical Paths in Air, J. Opt. Soc. Am., vol. 66, No. 5, (1976), pp. 411-416.
Zalicki, P. et al.,Cavity Ring-Down Spectroscopy for Quantitative Absorption Measurements, J. Chem. Phys., 102 (7), (1995), pp. 2708-2717.
Abreu Rene
Majewski Alexander
Alston & Bird LLP
Gaworecki Mark R
Goodrich Corporation
Porta David P
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