Dr. William G. Lawrence Profile

Dr. William G. Lawrence

Senior Scientist at MIT Lincoln Lab

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Author

Publications (14)

Proceedings Article | 17 February 2010 Paper

CMOS Geiger-mode avalanche photodiode detectors for time and intensity resolved measurements

William Lawrence, Tani Tozian, Christopher Stapels, James Christian, Gregory Derderian, Jeffrey Derderian, Gyula Varadi

Proceedings Volume 7594, 75940I (2010) https://doi.org/10.1117/12.839239

KEYWORDS: Sensors, Field programmable gate arrays, Luminescence, Quantum dots, Quenching (fluorescence), CMOS sensors, Detector arrays, Clocks, Photon counting, Avalanche photodiodes

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Proceedings Article | 3 March 2009 Paper

Improved molecular barcodes by lifetime discrimination

Daniel Hall, William Lawrence

Proceedings Volume 7189, 71890R (2009) https://doi.org/10.1117/12.809400

KEYWORDS: Luminescence, Quantum dots, Molecules, Pulsed laser operation, Time metrology, Absorption, Silica, Oscilloscopes, Multiplexing, Fluorescence resonance energy transfer

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Proceedings Article | 26 August 2008 Paper

CMOS Geiger photodiode array with integrated signal processing for imaging of 2D objects using quantum dots

Christopher Stapels, William Lawrence, Rajan Gurjar, Erik Johnson, James Christian

Proceedings Volume 7055, 70550S (2008) https://doi.org/10.1117/12.796329

KEYWORDS: Sensors, Prototyping, Signal processing, Quenching (fluorescence), Imaging arrays, Photodiodes, CMOS sensors, Molecules, Quantum efficiency, Photography

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Proceedings Article | 29 February 2008 Paper

A comparison of avalanche photodiode and photomultiplier tube detectors for flow cytometry

William Lawrence, Gyula Varadi, Gerald Entine, Edward Podniesinski, Paul Wallace

Proceedings Volume 6859, 68590M (2008) https://doi.org/10.1117/12.758958

KEYWORDS: Avalanche photodetectors, Sensors, Flow cytometry, Signal to noise ratio, Quantum efficiency, Luminescence, Avalanche photodiodes, Light emitting diodes, Interference (communication), Near infrared

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Proceedings Article | 29 February 2008 Paper

Polychromatic flow cytometry with an avalanche photodiode array

William Lawrence, Gyula Varadi, Gerald Entine, Edward Podniesinski, Paul Wallace

Proceedings Volume 6859, 68591L (2008) https://doi.org/10.1117/12.758959

KEYWORDS: Avalanche photodetectors, Sensors, Flow cytometry, Quantum dots, Luminescence, Electronics, Avalanche photodiodes, Fluorescent markers, Detector arrays, Blood

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Proceedings Article | 23 February 2006 Paper

Development of a solid state photomultiplier based on an array of Geiger mode CMOS avalanche photodiodes

William Lawrence, Christopher Stapels, Frank Augustine, James Christian

Proceedings Volume 6119, 611906 (2006) https://doi.org/10.1117/12.644917

KEYWORDS: Sensors, Crystals, Prototyping, Photodetectors, Optical character recognition, Avalanche photodiodes, Scintillators, Avalanche photodetectors, Solid state electronics, Photomultipliers

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Proceedings Article | 21 February 2006 Paper

A 16-channel avalanche photodiode detector array for visible and near-infrared flow cytometry

William Lawrence, Christopher Stapels, Richard Farrell, Joseph Tario, Jr., Edward Podniesinski, Paul Wallace, James Christian

Proceedings Volume 6088, 60880T (2006) https://doi.org/10.1117/12.644888

KEYWORDS: Avalanche photodetectors, Sensors, Luminescence, Near infrared, Detector arrays, Calibration, Avalanche photodiodes, Flow cytometry, Signal detection, Light emitting diodes

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Proceedings Article | 25 October 2005 Paper

Single photon detection using Geiger mode CMOS avalanche photodiodes

William Lawrence, Christopher Stapels, Frank Augustine, James Christian

Proceedings Volume 6013, 601308 (2005) https://doi.org/10.1117/12.630679

KEYWORDS: Quenching (fluorescence), Sensors, Avalanche photodetectors, CMOS sensors, Avalanche photodiodes, Temperature metrology, Photodiodes, Photon counting, Light emitting diodes, Photodetectors

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Proceedings Article | 7 April 2005 Paper

Development and characterization of CMOS avalanche photodiode arrays

William Lawrence, James Christian, Frank Augustine, Michael Squillante, Gerald Entine

Proceedings Volume 5726, (2005) https://doi.org/10.1117/12.591351

KEYWORDS: Avalanche photodetectors, Photons, Quenching (fluorescence), Sensors, Pulsed laser operation, Prototyping, Avalanche photodiodes, Photodiodes, CMOS sensors, Luminescence

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Proceedings Article | 12 June 2003 Paper

Spatial frequency analysis of line-edge roughness in nine chemically related photoresists

William Lawrence

Proceedings Volume 5039, (2003) https://doi.org/10.1117/12.485188

KEYWORDS: Line edge roughness, Scanning electron microscopy, Spatial frequencies, Etching, Edge detection, Photoresist materials, Image resolution, Image quality, Polymers, Edge roughness

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Proceedings Article | 12 June 2003 Paper

Negative tone 193-nm photoresists

Nick Pugliano, Patrick Bolton, Tony Barbieri, Matt King, Michael Reilly, William Lawrence, Doris Kang, George Barclay

Proceedings Volume 5039, (2003) https://doi.org/10.1117/12.485075

KEYWORDS: Photoresist materials, Polymers, Etching, Photomasks, Optical lithography, Lithography, Photoresist developing, Switching, Critical dimension metrology, Line edge roughness

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Proceedings Article | 24 July 2002 Paper

Factors influencing the properties of fluoropolymer-based resists for 157-nm lithography

Gary Taylor, Cheng-Bai Xu, Gary Teng, JoAnne Leonard, Charles Szmanda, William Lawrence, Sassan Nur, Kirk Brown, Al Stephen

Proceedings Volume 4690, (2002) https://doi.org/10.1117/12.474261

KEYWORDS: Absorbance, Polymers, Lithography, Silicon, Etching, Absorption, Plasma etching, Resistance, Reflectivity, Optical lithography

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Proceedings Article | 18 January 1999 Paper

Frequency-agile bandpass filter for direct detection lidar receivers

William Marinelli, Christopher Gittins, William Lawrence

Proceedings Volume 3533, (1999) https://doi.org/10.1117/12.336853

KEYWORDS: Sensors, Interferometers, Mirrors, Fabry–Perot interferometers, Signal to noise ratio, Receivers, Optical filters, LIDAR, Tunable filters, Black bodies

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Proceedings Article | 1 April 1992 Paper

Photodissociation dynamics in crystalline solids: many-body dynamics

Vartkess Apkarian, P. Ashjian, N. Blake, A. Danylichev, Matt Hill, G. Hoffman, D. Imre, William Lawrence, E. Sekreta, Ruben Zadoyan, Jim Zoval

Proceedings Volume 1638, (1992) https://doi.org/10.1117/12.58123

KEYWORDS: Crystals, Solids, Chemical species, Chemistry, Argon, Spectroscopy, Krypton, Transient nonlinear optics, Systems modeling, Crystallography

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Showing 5 of 14 publications

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