Mr. Stephen J. Lomnes Profile

Stephen J. Lomnes

Manager/Biomedical & Optics Research

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Author

Publications (7)

SPIE Journal Paper | 1 March 2010 Open Access

Low-frequency wide-field fluorescence lifetime imaging using a high-power near-infrared light-emitting diode light source

Sylvain Gioux, Stephen Lomnes, Hak Soo Choi, John Frangioni

JBO, Vol. 15, Issue 02, 026005, (March 2010) https://doi.org/10.1117/12.10.1117/1.3368997

KEYWORDS: Light emitting diodes, Luminescence, Light sources, Modulation, Semiconductor lasers, Near infrared, Fluorescence lifetime imaging, In vivo imaging, Phase shift keying, Image intensifiers

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SPIE Journal Paper | 1 March 2009 Open Access

Optical clearing of the skin for near-infrared fluorescence image-guided surgery

Aya Matsui, Stephen Lomnes, John Frangioni

JBO, Vol. 14, Issue 02, 024019, (March 2009) https://doi.org/10.1117/12.10.1117/1.3103317

KEYWORDS: Skin, Near infrared, Luminescence, Optical clearing, Image-guided intervention, Tissue optics, In vivo imaging, Statistical analysis, Systems modeling, Cameras

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Proceedings Article | 8 February 2008 Paper

A low-cost linear DC - 35 MHz high-power LED driver for continuous wave (CW) and fluorescence lifetime imaging (FLIM)

Sylvain Gioux, Vida Kianzad, Razvan Ciocan, Hak Soo Choi, Chad Nelson, Jeffrey Thumm, Robert Filkins, Stephen Lomnes, John Frangioni

Proceedings Volume 6848, 684807 (2008) https://doi.org/10.1117/12.779196

KEYWORDS: Light emitting diodes, Fluorescence lifetime imaging, Semiconductor lasers, Modulation, Luminescence, Light sources, Resistors, Amplifiers, Near infrared, Continuous wave operation

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SPIE Journal Paper | 1 January 2006 Open Access

Tissue-like phantoms for near-infrared fluorescence imaging system assessment and the training of surgeons

Alec Degrand, Stephen Lomnes, Deborah Lee, Matthew Pietrzykowski, Shunsuke Ohnishi, Timothy Morgan, Andrew Gogbashian, Rita Laurence, John Frangioni

JBO, Vol. 11, Issue 01, 014007, (January 2006) https://doi.org/10.1117/12.10.1117/1.2170579

KEYWORDS: Near infrared, Luminescence, Imaging systems, Tissues, Optical properties, Tissue optics, Calibration, Surgery, Absorbance, Reflectivity

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Proceedings Article | 22 November 2005 Paper

Photon transport models for predictive assessment of imageability

Kajoli Krishnan, Stephen Lomnes, Manohar Kollegal, Amey Joshi, Andrew Healey

Proceedings Volume 6009, 60090U (2005) https://doi.org/10.1117/12.630796

KEYWORDS: Diffusion, Monte Carlo methods, Tissue optics, 3D modeling, Scattering, Photon transport, Absorption, Light scattering, Tissues, Chemical elements

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Proceedings Article | 22 November 2005 Paper

Improved optical sub-systems for intraoperative near-infrared fluorescence imaging

Sylvain Gioux, Alec Degrand, Deborah Lee, Siavash Yazdanfar, John Idoine, Stephen Lomnes, John Frangioni

Proceedings Volume 6009, 60090C (2005) https://doi.org/10.1117/12.638974

KEYWORDS: Near infrared, Luminescence, Surgery, Cameras, Imaging systems, Zoom lenses, Light emitting diodes, LabVIEW, Electrocardiography, Signal to noise ratio

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Proceedings Article | 22 November 2005 Paper

A theory for the ultrasonic modulation of incoherent light in turbid medium

Kajoli Krishnan, Pavel Fomitchov, Stephen Lomnes, Manohar Kollegal, Floris Jansen

Proceedings Volume 6009, 60090V (2005) https://doi.org/10.1117/12.630819

KEYWORDS: Acoustics, Refractive index, Modulation, Photons, Scattering, Ultrasonics, Ultrasonography, Sensors, Tissue optics, Light scattering

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Showing 5 of 7 publications

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