High-sensitivity gas-mapping 3D imager and method of operation
Abstract
Measurement apparatuses and methods are disclosed for generating high-precision and -accuracy gas concentration maps that can be overlaid with 3D topographic images by rapidly scanning one or several modulated laser beams with a spatially-encoded transmitter over a scene to build-up imagery. Independent measurements of the topographic target distance and path-integrated gas concentration are combined to yield a map of the path-averaged concentration between the sensor and each point in the image. This type of image is particularly useful for finding localized regions of elevated (or anomalous) gas concentration making it ideal for large-area leak detection and quantification applications including: oil and gas pipeline monitoring, chemical processing facility monitoring, and environmental monitoring.
- Inventors:
- Issue Date:
- Research Org.:
- Bridger Photonics, Inc., Bozeman, MT (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1840394
- Patent Number(s):
- 11105621
- Application Number:
- 16/424,327
- Assignee:
- Bridger Photonics, Inc. (Bozeman, MT)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
G - PHYSICS G01 - MEASURING G01C - MEASURING DISTANCES, LEVELS OR BEARINGS
- DOE Contract Number:
- AR0000544
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 05/28/2019
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Kreitinger, Aaron Thomas, and Thorpe, Michael James. High-sensitivity gas-mapping 3D imager and method of operation. United States: N. p., 2021.
Web.
Kreitinger, Aaron Thomas, & Thorpe, Michael James. High-sensitivity gas-mapping 3D imager and method of operation. United States.
Kreitinger, Aaron Thomas, and Thorpe, Michael James. Tue .
"High-sensitivity gas-mapping 3D imager and method of operation". United States. https://www.osti.gov/servlets/purl/1840394.
@article{osti_1840394,
title = {High-sensitivity gas-mapping 3D imager and method of operation},
author = {Kreitinger, Aaron Thomas and Thorpe, Michael James},
abstractNote = {Measurement apparatuses and methods are disclosed for generating high-precision and -accuracy gas concentration maps that can be overlaid with 3D topographic images by rapidly scanning one or several modulated laser beams with a spatially-encoded transmitter over a scene to build-up imagery. Independent measurements of the topographic target distance and path-integrated gas concentration are combined to yield a map of the path-averaged concentration between the sensor and each point in the image. This type of image is particularly useful for finding localized regions of elevated (or anomalous) gas concentration making it ideal for large-area leak detection and quantification applications including: oil and gas pipeline monitoring, chemical processing facility monitoring, and environmental monitoring.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {8}
}
Works referenced in this record:
Method and Apparatus for Range Resolved Laser Doppler Vibrometry
patent-application, May 2013
- Klotz, Matthew J.; Bulot, Jean-Paul
- US Patent Document 13/285821; 20130104661
Frequency Synthesis-Based Optical Frequency Domain Reflectometry Method and System
patent-application, January 2019
- He, Zuyuan; Liu, Qingwen; Fan, Xinyu
- US Patent Application 16/066119; 20190013862
Gas detection system
patent, December 1975
- Allan, Colin J.; Bayly, John G.
- US Patent Document 3,925,666
Laser-absorption tomography beam arrangement optimization using resolution matrices
journal, January 2012
- Twynstra, Matthew G.; Daun, Kyle J.
- Applied Optics, Vol. 51, Issue 29, p. 7059-7068
A reassessment of current volcanic emissions from the Central American arc with specific examples from Nicaragua
journal, January 2006
- Mather, T. A.; Pyle, D. M.; Tsanev, V. I.
- Journal of Volcanology and Geothermal Research, Vol. 149, Issue 3-4
Optical velocimeter probe
patent, January 1999
- Galtier, Frédéric; Besson, Olivier
- US Patent Document 5,859,694
Coherent Doppler Lidar for Measuring Altitude, Ground Velocity, and Air Velocity of Aircraft and Spaceborne Vehicles
patent-application, February 2014
- Amzajerdian, Farzin; Pierrottet, Diego F.
- US Patent Document 13/566077; 20140036252
Mapping concentrations of airborne matter
patent, October 2012
- Wong, Colin Irvin
- US Patent Document 8,294,899
Open-Path Tunable Diode Laser Absorption Spectroscopy for Acquisition of Fugitive Emission Flux Data
journal, May 2005
- Thoma, Eben D.; Shores, Richard C.; Thompson, Edgar L.
- Journal of the Air & Waste Management Association, Vol. 55, Issue 5
Method for monitoring fugitive gas emissions from the soil, via vertical concentration measurements
patent, May 2014
- Andreussi, Paolo
- US Patent Document 8,730,461
Compact Fiber Optic Geometry for a Counter Chirp FMCW Coherent Laser Radar
patent-application, August 2011
- Rezk, Mina; Slotwinski, Anthony
- US Patent Document 13/061559; 20110205523
Compact covariance descriptors in 3D point clouds for object recognition
conference, May 2012
- Fehr, Duc; Cherian, Anoop; Sivalingam, Ravishankar
- 2012 IEEE International Conference on Robotics and Automation
High-Sensitivity Gas-Mapping 3D Imager and Method of Operation
patent-application, August 2018
- Kreitinger, Aaron; Thorpe, Michael
- US Patent Application 15/936247; 20180216932
Interferometric Distance Measuring Method with Spectrally Separable Double Chirp and Device
patent-application, December 2011
- Jensen, Thomas; Rohner, Marcel
- US Patent Document 12/989256; 20110292403
Accurate Chirped Synthetic Wavelength Interferometer
patent-application, May 2016
- Roos, Peter; Thorpe, Michael; Brasseur, Jason
- US Patent Document 14/925324; 20160123718
Reduction of residual amplitude modulation in frequency-modulated signals
patent-application, May 2005
- Cannon, Bret D.
- US Patent Application 10/700161; 20050094149
Chromatic confocal microscopy for multi-depth imaging of epithelial tissue
journal, January 2013
- Olsovsky, Cory; Shelton, Ryan; Carrasco-Zevallos, Oscar
- Biomedical Optics Express, Vol. 4, Issue 5, p. 732-740
Compensation of Systematic Effects in Low Coherence Interferometry
patent-application, January 2008
- Groot, Peter de
- US Patent Document 11/780177; 20080018901
Rotationally symmetric dual reflection optical beam scanner and system using same
patent, November 1994
- Kramer, Charles J.
- US Patent Document 5,367,399
Imaging device for recording depth
patent-application, April 2005
- Bonnet, Gerhard
- US Patent Application 10/501843; 20050078296
Chirped coherent laser radar system and method
patent, January 2018
- Sebastian, Richard L.; Belsley, Kendall
- US Patent Document 9,864,060
Shapes of pressure- and Doppler-broadened spectral lines in the core and near wings
journal, August 1998
- Ciuryło, Roman
- Physical Review A, Vol. 58, Issue 2, p. 1029-1039
Fixed Wavelength Absolute Distance Interferometer
patent-application, February 2012
- Sesko, David William; Tobiason, Joseph Daniel
- US Patent Application 12/854784; 20120038930
Precise broadband frequency modulated laser
patent, January 2017
- Roos, Peter; Reibel, Randy R.; Kaylor, Brant M.
- US Patent Document 9,559,486
Length metrology apparatus and methods for suppressing phase noise-induced distance measurement errors
patent, October 2017
- Thorpe, Michael; Kreitinger, Aaron; Reibel, Randy R.
- US Patent Document 9,784,560
Laser distance measuring device with phase delay measurement
patent-application, June 2004
- Gogolla, Torsten; Winter, Andreas; Seifert, Helmut
- US Patent Document 10/637997; 20040105087
Range Imaging Lidar
patent-application, July 2011
- Hays, Paul Byron; Johnson, David Keith; Zuk, David Michael
- US Patent Application 12/780895; 20110164783
Method for measuring of gaseous emissions and/or flux
patent, March 2005
- Galle, Bo; Mellqvist, Johan
- US Patent Document 6,864,983
Detecting natural gas pipeline failures
patent-application, May 2004
- Spoonhower, JOhn P.; Paz-Pujalt, Gustavo R.; Sherin, Janet M.
- US Patent Application 10/285244; 20040088113
Precise Broadband Frequency Modulated Laser
patent-application, May 2012
- Roos, Peter A.; Reibel, Randy R.; Kaylor, Brant
- US Patent Document 13/318135; 20120106579
Speckle phase noise in coherent laser ranging: fundamental precision limitations
journal, January 2014
- Baumann, Esther; Deschênes, Jean-Daniel; Giorgetta, Fabrizio R.
- Optics Letters, Vol. 39, Issue 16, p. 4776-4779
Accurate chirped synthetic wavelength interferometer
patent, April 2019
- Roos, Peter; Thorpe, Michael; Brasseur, Jason
- US Patent Document 10,247,538
High-sensitivity gas-mapping 3D imager and method of operation
patent, May 2018
- Kreitinger, Aaron; Thorpe, Michael
- US Patent Document 9,970,756
Autonomous Detection of Chemical Plumes
patent-application, January 2014
- Cheban, Joseph M.; Zeng, Yousheng; Morris, Jon
- US Patent Application 14/001356; 20140002639
Determination of gas flux using airborne dial lidar
patent, August 2011
- Stearns, Steven Vincent; Lippert, Joseph L.
- US Patent Document 8,010,300
Time-domain gated filter for RF communication systems
patent-application, April 2009
- Chou, Jason T.; Rose, Todd S.; Conway, Joshua A.
- US Patent Application 11/978251; 20090110004
Absolute Distance Laser Interferometer
patent-application, January 2015
- Thurner, Klaus; Karrai, Khaled; Braun, Pierre-Francois
- US Patent Document 14/284756; 20150019160
System for Detecting a Gas and Method Therefor
patent-application, July 2016
- Feng, Philip X. L.; Wang, Zenghui; Lee, Jaesung
- US Patent Document 14/993064; 20160202225
Frequency modulation and wavelength modulation spectroscopies: comparison of experimental methods using a lead-salt diode laser
journal, January 1992
- Bomse, David S.; Stanton, Alan C.; Silver, Joel A.
- Applied Optics, Vol. 31, Issue 6, p. 718-731
Methods for calibrating a fugitive emission rate measurement
patent, September 2017
- Wong, Colin Irvin
- US Patent Document 9,759,597
Registration Calculation Between Three-Dimensional (3D) Scans Based on Two-Dimensional (2D) Scan Data from a 3D Scanner
patent-application, February 2016
- Zweigle, Oliver; Becker, Bernd-Dietmar; Becker, Reinhard
- US Patent Application 14/882625; 20160033643
High accuracy optical position sensing system
patent, March 1994
- Vertatschitsch, Edward J.; Abbas, Gregory L.; de La Chapelle, Michael
- US Patent Document 5,294,075
Knowledge guided object detection and identification in 3D point clouds
conference, June 2015
- Karmacharya, A.; Boochs, F.; Tietz, B.
- SPIE Optical Metrology
Method and System for Screening an Area of the Atmosphere for Sources of Emissions
patent-application, September 2011
- Archibald, Ian George; HIrst, Sr., William Joseph
- US Patent Application 13/000482; 20110213554
Low Drift Reference for Laser Radar
patent-application, July 2014
- Slotwinski, Anthony R.; Rezk, Mina A.
- US Patent Document 13/840606; 20140204363
Wavelength-Modulation Spectroscopy Method and Apparatus
patent-application, April 2010
- Liu, Xiaoyong; Poole, John Mckinley; Huang, Yufeng
- US Patent Application 12/249156; 20100091278
Method and apparatus for laser frequency stabilization
patent, March 2000
- Mossberg, Thomas W.; Greiner, Christoph M.; Boggs, Bryan
- US Patent Document 6,034,976
High Speed 360 Degree Scanning Lidar Head
patent-application, July 2015
- Zhu, Xiang
- US Patent Application 14/397155; 20150185313
Use of diffuse reflections in tunable diode laser absorption spectroscopy: implications of laser speckle for gas absorption measurements
journal, January 2008
- Masiyano, D.; Hodgkinson, J.; Tatam, R. P.
- Applied Physics B, Vol. 90, Issue 2, p. 279-288
Precise broadband frequency modulated laser
patent, December 2014
- Roos, Peter; Reibel, Randy R.; Kaylor, Brant M.
- US Patent Document 8,913,636
Method for Remote Spectral Analysis of Gas Plumes
patent-application, October 2009
- Wolowelsky, Karni; Figov, Zvi
- US Patent Application 12/416981; 20090257622
Chirped Coherent Laser Radar System and Method
patent-application, May 2014
- Sebastian, Richard Lee; Belsey, Kendall L.
- US Patent Application 14/076172; 20140139818
High-Sensitivity Gas-Mapping 3D Imager and Method of Operation
patent-application, April 2017
- Kreitinger, Aaron; Thorpe, Michael
- US Patent Application 15/285550; 20170097302
Chirped coherent laser radar system and method
patent, March 2009
- Sebastian, Richard L.; Belsley, Kendall
- US Patent Document 7,511,824
Fast Point Feature Histograms (FPFH) for 3D registration
conference, May 2009
- Rusu, Radu Bogdan; Blodow, Nico; Beetz, Michael
- 2009 IEEE International Conference on Robotics and Automation
Generic real-time uniform K-space sampling method for high-speed swept-Source optical coherence tomography
journal, January 2010
- Xi, Jiefeng; Huo, Li; Li, Jiasong
- Optics Express, Vol. 18, Issue 9, p. 9511-9517
Radar Apparatus
patent-application, November 2012
- Itoh, Hiroshi
- US Patent Application 13/473013; 20120293358
Performance enhancement of intensity-modulated laser rangefinders on natural surfaces
conference, December 2004
- Barker, Andrew J.; Harding, Kevin G.
- Optics East
Frequency-modulation spectroscopy for trace species detection: theory and comparison among experimental methods
journal, January 1992
- Silver, Joel A.
- Applied Optics, Vol. 31, Issue 6, p. 707-717
Calibration-free wavelength-modulation spectroscopy based on a swiftly determined wavelength-modulation frequency response function of a DFB laser
journal, January 2016
- Zhao, Gang; Tan, Wei; Hou, Jiajia
- Optics Express, Vol. 24, Issue 2, p. 1723-1733
Method for improving performance of a Sodar system
patent, July 2017
- Martin, Andrew Louis
- US Patent Document 9,696,423
Chirped Coherent Laser Radar System and Method
patent-application, July 2018
- Sebastian, Richard Lee; Belsley, Kendall L.
- US Patent Application 15/862132; 20180188369
Sensitivity advantage of swept source and Fourier domain optical coherence tomography
journal, January 2003
- Choma, Michael; Sarunic, Marinko; Yang, Changhuei
- Optics Express, Vol. 11, Issue 18, p. 2183-2189
Methods and Apparatus for Increased Precision and Improved Range in a Multiple Detector LiDAR Array
patent-application, September 2016
- Retterath, James E.; Laumeyer, Robert A.
- US Patent Application 14/639802; 20160259038
Packaged Laser Thermal Control System
patent-application, November 2016
- Tulip, John
- US Patent Application 15/145446; 20160329681
Remote sensing gas analyzer
patent, January 1989
- Sandridge, Robert L.; Hunt, Robert N.
- US Patent Document 4,795,253
Chirped synthetic wavelength laser radar
patent, December 1994
- de Groot, Peter; McGarvey, John A.
- US Patent Document 5,371,587
Device, method and system for determining the road surface condition
patent-application, March 2006
- Elman, Ulf
- US Patent Application 10/530191; 20060050270
A theory of modulation spectroscopy with applications of higher harmonic detection
journal, March 1996
- Dharamsi, A. N.
- Journal of Physics D: Applied Physics, Vol. 29, Issue 3, p. 540-549
Coherent detection scheme for FM chirped laser radar
patent, June 2010
- Hui, Rongqing; Allen, Christopher T.; Adany, Peter
- US Patent Document 7,742,152
Length Metrology Apparatus and Methods for Suppressing Phase Noise-Induced Distance Measurement Errors
patent-application, May 2016
- Thorpe, Michael; Kreitinger, Aaron; Reibel, Randy
- US Patent Document 14/926750; 20160123720
Dual laser high precision interferometer
patent, November 2007
- Tobiason, Joseph Daniel; Sesko, David William
- US Patent Document 7,292,347
Chirped synthetic wave laser radar apparatus and methods
patent, May 2007
- Soreide, David C.; Leep, David A.
- US Patent Document 7,215,413
Laser ranging: a critical review of unusual techniques for distance measurement
journal, January 2001
- Amann, Markus-Christian; Bosch, Thierry M.; Lescure, Marc
- Optical Engineering, Vol. 40, Issue 1, Article No. 10
Using spin images for efficient object recognition in cluttered 3D scenes
journal, May 1999
- Johnson, A. E.; Hebert, M.
- IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 21, Issue 5, p. 433-449
Coherent Detection Scheme For FM Chirped Laser Radar
patent-application, January 2008
- Hui, Rongqing; Allen, Christopher T.; Adany, Peter
- US Patent Document 11/767501; 20080018881
Linearization of the frequency sweep of a frequency-modulated continuous-wave semiconductor laser radar and the resulting ranging performance
journal, May 1999
- Karlsson, Christer J.; Olsson, Fredrik Ã…. A.
- Applied Optics, Vol. 38, Issue 15
Airborne measurements of atmospheric methane column abundance using a pulsed integrated-path differential absorption lidar
journal, January 2012
- Riris, Haris; Numata, Kenji; Li, Steve
- Applied Optics, Vol. 51, Issue 34, p. 8296-8305
Integrated Linewidth Reduction of a Tunable SG-DBR Laser
conference, January 2013
- Sivananthan, Abirami; Park, Hyun-chul; Lu, Mingzhi
- CLEO: 2013
Comb-Based Spectroscopy with Synchronous Sampling for Real-Time Averaging
patent-application, March 2011
- Newbury, Nathan R.; Coddington, Ian; Swann, William C.
- US Patent Application 12/883455; 20110069309
Altimetry Method and System
patent-application, January 2010
- D'Addio, Salvatore
- US Patent Application 12/498715; 20100007547
Chirped coherent laser radar with multiple simultaneous measurements
patent, November 2013
- Sebastian, Richard L.; Belsley, Kendall
- US Patent Document 8,582,085
Method and apparatus for detecting and locating gas leaks
patent-application, July 2006
- Hu, Cheng; Qu, Xidong; Wu, Jonathan Q. M.
- US Patent Application 10/528239; 20060162428
Frequency Modulation Scheme for FMCW Radar
patent-application, May 2017
- Roger, Andre; Romain, Ygnace; Khalid, Farhan Bin
- US Patent Application 15/342186; 20170131394
System and method for remote quantitative detection of fluid leaks from a natural gas or oil pipeline
patent, November 2004
- Kalayeh, Hooshmand M.; Paz-Pujalt, Gustavo R.; Spoonhower, John P.
- US Patent Document 6,822,742
High-Accuracy Line Intensities Determined from Theory and Experiment
journal, June 2015
- Polyansky, Oleg L.; Bielska, Katarzyna; Ghysels, Mélanie
- Physical Review Letters, Vol. 114, Issue 24
Length Metrology Apparatus and Methods for Suppressing Phase Noise-Induced Distance Measurement Errors
patent-application, December 2019
- Thorpe, Michael; Kreitinger, Aaron; Reibel, Randy
- US Patent Application 16/551075; 20190383596
Dual-wavelength frequency-chirped microwave AMCW ladar system
patent, July 1996
- Ball, Gary A.; Newman, Leon A.
- US Patent Document 5,534,993
Conoscopic holography
journal, January 1985
- Sirat, Gabriel; Psaltis, Demetri
- Optics Letters, Vol. 10, Issue 1, p. 4-6
Volume flow calculations on gas leaks imaged with infrared gas-correlation
journal, January 2012
- Sandsten, Jonas; Andersson, Martin
- Optics Express, Vol. 20, Issue 18, p. 20318-20329
Pulsed laser linescanner for a backscatter absorption gas imaging system
patent-application, June 2002
- Kulp, Thomas J.; Reichardt, Thomas A.; Schmidt, Randal L.
- US Patent Application 09/965527; 20020071122
Linearizing optical frequency-sweep of a laser diode for FMCW reflectometry
journal, January 1996
- Iiyama, K.
- Journal of Lightwave Technology, Vol. 14, Issue 2
Estimating and interpreting the instantaneous frequency of a signal. II. Algorithms and applications
journal, April 1992
- Boashash, B.
- Proceedings of the IEEE, Vol. 80, Issue 4, p. 540-568
Chirped coherent laser radar system and method
patent-application, September 2006
- Sebastian, Richard; Belsley, Kendall
- US Patent Application 11/353123; 20060203224
An isolated line-shape model to go beyond the Voigt profile in spectroscopic databases and radiative transfer codes
journal, November 2013
- Ngo, N. H.; Lisak, D.; Tran, H.
- Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 129, p. 89-100
Chirped Coherent Laser Radar System and Method
patent-application, June 2009
- Sebastian, Richard; Belsley, Kendall
- US Patent Application 12/393522; 20090153872
Gas Flux Determination Using Airborne Dial Lidar and Airborne Wind Measurement
patent-application, May 2010
- Lippert, Joseph Lawrence; Stearns, Steven Vincent; Brake, Daniel Everett
- US Patent Application 12/639364; 20100131207
Chirped coherent laser radar system and method
patent, April 2011
- Sebastian, Richard L.; Belsley, Kendall
- US Patent Document 7,920,272
Methods for gas leak detection and localization in populated areas using isotope ratiol measurements
patent-application, July 2017
- Rella, Chris W.; Crosson, Eric R.; Woelk, Michael R.
- US Patent Application 15/462889; 20170191898
Programmable frequency reference for laser frequency stabilization, and arbitrary optical clock generator, using persistent spectral hole burning
patent, February 2003
- Sellin, Peter B.; Strickland, Nicholas; Carlsten, John L.
- US Patent Document 6,516,014
Subliminal coherent phase shift keyed in-band signaling of network management information in wavelength division multiplexed fiber optic networks
patent-application, March 2003
- Stough, Stephen A.; Spickermann, Ralph
- US Patent Document 09/947010; 20030043437
High-resolution distance meter using optical intensity modulation at 28 GHz
journal, July 1998
- Fujima, Ichiro; Iwasaki, Shigeo; Seta, Katuo
- Measurement Science and Technology, Vol. 9, Issue 7, p. 1049-1052
Apparatus and Methods for Uniform Sample Clocking
patent-application, February 2009
- Kemp, Nathaniel J.; Kuranov, Roman; McElroy, Austin Broderick
- US Patent Document 12/172980; 20090046295
Chirped Coherent Laser Radar System and Method
patent-application, November 2011
- Sebastian, Richard; Belsley, Kendall
- US Patent Application 13/079260; 20110273699
Accuracy of active chirp linearization for broadband frequency modulated continuous wave ladar
journal, January 2010
- Barber, Zeb W.; Babbitt, Wm. Randall; Kaylor, Brant
- Applied Optics, Vol. 49, Issue 2, p. 213-219
Gas flux determination using airborne DIAL LIDAR and airborne wind measurement
patent, February 2012
- Lippert, Joseph L.; Stearns, Steven Vincent; Brake, Daniel Everett
- US Patent Document 8,121,798
Flexible Three-Dimensional Long-Path Gas Sensing by Unmanned Vehicles
patent-application, April 2017
- Huang, Ming-Fang; Tao, Lei; Tian, Yue
- US Patent Document 15/269586; 20170115218
Gas-Mapping 3D Imager Measurement Techniques and Method of Data Processing
patent-application, May 2020
- Thorpe, Michael; Kreitinger, Aaron; Crouch, Stephen
- US Patent Application 16/734769; 20200149883
Technique for measuring very small spacings
patent, June 1986
- Fridge, D. Alan; Miller, Kenneth A.
- US Patent Document 4,593,368
Apparatus and method for measuring distance
patent, May 2015
- Warden, Matthew; Urner, David
- US Patent Document 9,030,670
Ultrabroadband optical chirp linearization for precision metrology applications
journal, January 2009
- Roos, Peter A.; Reibel, Randy R.; Berg, Trenton
- Optics Letters, Vol. 34, Issue 23, p. 3692-3694
A portable remote methane sensor using a tunable diode laser
journal, May 2000
- Iseki, Takaya; Tai, Hideo; Kimura, Kiyoshi
- Measurement Science and Technology, Vol. 11, Issue 6, p. 594-602
Gas-Mapping 3D Imager Measurement Techniques and Method of Data Processing
patent-application, April 2017
- Thorpe, Michael; Kreitinger, Aaron; Crouch, Stephen
- US Patent Document 15/285787; 20170097274
Differential wavelength-scanning heterodyne interferometer for measuring large step height
journal, October 2002
- Lu, Sheng-Hua; Chiueh, Ching-I; Lee, Cheng-Chung
- Applied Optics, Vol. 41, Issue 28
Length Metrology Apparatus and Methods for Suppressing Phase Noise-Induced Distance Measurement Errors
patent-application, November 2017
- Thorpe, Michael; Kreitinger, Aaron; Reibel, Randy
- US Patent Application 15/680076; 20170343333
Quantitative calibration- and reference-free wavelength modulation spectroscopy
journal, March 2012
- Zakrevskyy, Y.; Ritschel, T.; Dosche, C.
- Infrared Physics & Technology, Vol. 55, Issue 2-3, p. 183-190
Arbitrary optical waveform generation utilizing optical phase-locked loops
patent, May 2012
- Rakuljic, George; Satyan, Naresh; Vasilyev, Arseny
- US Patent Document 8,175,126
High-Coherence Semiconductor Light Sources
patent-application, September 2016
- Santis, Christos T.; Steger, Scott T.; Yariv, Amnon
- US Patent Application 15/017560; 20160261091
Accurate Chirped Synthetic Wavelength Interferometer
patent-application, June 2019
- Roos, Peter; Thorpe, Michael; Brasseur, Jason
- US Patent Application 16/264346; 20190170500
Rotating beam deflector having an integral wave front correction element
patent, June 1998
- Kelley, Henry A.; Tempest, Michael C.
- US Patent Document 5,768,001