Ballistic photon
Ballistic photons are the light photons that travel through a scattering (turbid) medium in a straight line. Also known as ballistic light. If laser pulses are sent through a turbid medium such as fog or body tissue, most of the photons are either randomly scattered or absorbed. However, across short distances, a few photons pass through the scattering medium in straight lines. These coherent photons are referred to as ballistic photons. Photons that are slightly scattered, retaining some degree of coherence, are referred to as snake photons.
If efficiently detected, there are many applications for ballistic photons especially in coherent high resolution medical imaging systems. Ballistic scanners (using ultrafast time gates) and optical coherence tomography (OCT) (using the interferometry principle) are just two of the popular imaging systems that rely on ballistic photon detection to create diffraction-limited images. Due to the exponential reduction (with respect to distance) of ballistic photons in a scattering medium, often image processing techniques are applied to the raw captured ballistic images, to reconstruct high quality ones.

This is an excerpt from the article Ballistic photon from the Wikipedia free encyclopedia. A list of authors is available at Wikipedia.
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Ballistic photon - Wikipedia, the free encyclopedia
Ballistic photons are the light photons that travel through a scattering (turbid) medium in a straight line. Also known as ballistic light. If laser pulses are sent ...
en.wikipedia.org/wiki/Ballistic_photon
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1 Chapter 1: Basic concepts of photon migration and diffuse imaging
Most neuroimaging modalities in use today operate in a ballistic fashion. .... With DOT, the photon probability density function (PDF) fundamentally limits.
www.nmr.mgh.harvard.edu/DOT/PDF/siegel-diss/Thesis_Ch2.pdf
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Flickr: Ballistic Photon's Photostream
Andres. Ballistic photon ... A quick video of the 2010 Crepe meetup. Ballistic photon. [☆] 0. State and Adams · Ballistic photon. [☆] 3 0. Palmer House - Chicago.
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Diffusion of Photons in Scattering Media
2 Photons may be highly scattered (many paths) until nearly uniform. •. Scattered ... 3 Photons may travel without scattering: called Ballistic photon. •. If photon ...
www2.ensc.sfu.ca/~glennc/e376/e376l14a-part1.pdf
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Ultrafast time-gated ballistic-photon imaging and shadowgraphy in ...
Feb 1, 2009 ... Time-gated ballistic-photon imaging is a form of shadowgraphy in which an ultrashort, optical-Kerr-effect (order 2 ps) time gate is used to ...
www.ncbi.nlm.nih.gov/pubmed/19183571
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Ultrafast time-gated ballistic-photon imaging and ... - Optics InfoBase
Feb 1, 2009 ... Time-gated ballistic-photon imaging is a form of shadowgraphy in which an ultrashort, optical-Kerr- effect (order 2 ps ) time gate is used to ...
www.opticsinfobase.org/ao/abstract.cfm?uri=ao-48-4-b137
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Imaging in turbid media using quasi-ballistic photons
Photons entering a scattering medium travel exponentially distributed ballistic pathlengths between scattering events. The scattering mean free path ls is the ...
www.sciencedirect.com/science/article/pii/S003040189900468X
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Early Light Imaging for Biomedical Applications - Defense Technical ...
1. Ballistic photons take the p ir'isi, incident photons travels over a much larger distance in turbid samples. The snake component arises from those photons ...
www.dtic.mil/dtic/tr/fulltext/u2/p011212.pdf
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Ballistic Imaging: An Emerging Dense Spray Imaging Technique
Ballistic photon input light. Introduction to ballistic imaging. •. When light is transmitted through turbid media, such as a spray, some photons do not scatter ...
www.chalmers.se/am/SV/forskning/forskningsavdelningar/stromningslara/siamuf/seminarium-arkiv/seminarium-oktober-4237/downloadFile/attachedFile_1_f0/Ballistic_Imaging__An_Emerging_Dense_Spray_Imaging_Technique.pdf?nocache=1201443611.29
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Ballistic Photon
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Ballistic photon in science
Ballistic photon - Wikipedia, the free encyclopedia
Ballistic photons are the light photons that travel through a scattering (turbid) medium in a straight line. Also known as ballistic light. If laser pulses are sent ...
Ultrafast time-gated ballistic-photon imaging and shadowgraphy in ...
Feb 1, 2009... Mechanical Engineering, Iowa State University, Ames, Iowa 50011, USA. Time- gated ballistic-photon imaging is a form of shadowgraphy in ...
[PDF]Monte Carlo Simulations of the Growth and Decay of Quasi-Ballistic ...
Simon Fraser University, School of Engineering Science, 8888 University Ave, ... competing processes: the decay of Ballistic photons into quasi-Ballistic photons ...
[PDF]Statistical detection and imaging of objects hidden in turbid ... - Duke
Aug 10, 2007 ... 2Electrical Engineering Department, University of California, Santa Cruz, California .... practical setup of a Ballistic photon imaging system in.
Optics InfoBase: Applied Optics - Statistical detection and imaging of ...
Aug 10, 2007 ... We exploit recent advances in active high-resolution imaging through scattering media with Ballistic photons. We derive the fundamental limits ...
[PDF]Ultrafast time-gated ballistic-photon imaging and ... - Optics InfoBase
1 Department of Mechanical Engineering, Iowa State University, Ames, Iowa ... Time-gated ballistic-photon imaging is a form of shadowgraphy in which an ...
Imaging in turbid media using quasi-ballistic photons
Jun 13, 1999 ... Cornell University Library ... Title: Imaging in turbid media using quasi-Ballistic photons ... light in random media, to determine the distance upto which photons travel along almost undeviated paths within a scattering medium, ...
[PDF]MULTI-SCALE STATISTICAL DETECTION AND BALLISTIC ...
EE Department, University of California. Santa Cruz, CA 95064, USA. ... Index Terms— Ballistic photons, Poisson Statistics, Adap- tive Reconstruction, GLRT ... practical issues involved in photon limited imaging via ballistic systems, let us con- ...
Ultrafast time-gated ballistic-photon imaging and ... - ResearchGate
Department of Mechanical Engineering, Iowa State University, Ames, Iowa ... ABSTRACT Time-gated ballistic-photon imaging is a form of shadowgraphy in ...
Books on the term Ballistic photon
Ultrafast-time-gated Ballistic-photon Imaging and ...
Ultrafast-time-gated Ballistic-photon Imaging and ...
Zane Donald Schaefer, 2009
The goal of this work is to improve on the existing imaging system and investigate the breakup mechanisms of the liquid core immediately following injection.
Nanoscale Energy Transport and Conversion: A Parallel Treatment of Electrons, Molecules, Phonons, and Photons...
Nanoscale Energy Transport and Conversion: A Parallel Treatment of Electrons, Molecules, Phonons, and Photons...
2005
This is a graduate level textbook in nanoscale heat transfer and energy conversion that can also be used as a reference for researchers in the developing field of nanoengineering. It provides a comprehensive overview of microscale heat transfer, focusing on thermal energy storage and transport. Chen broadens the readership by incorporating results ...
Optical- Response of Laser-Irradiated Tissue
Optical- Response of Laser-Irradiated Tissue
Ashley J. Welch, Martin J. C. van Gemert, 1995
(1) Transmittance-mode imaging uses the few early transmitted photons which cast shadows of internal objects within the tissue and ... One of the research directions is to use transmitted Ballistic photon or quasi-Ballistic photon detection.
Handbook of Photonics for Biomedical Science (Series in Medical Physics and Biomedical Engineering)
Handbook of Photonics for Biomedical Science (Series in Medical Physics and Biomedical Engineering)
2010
The Handbook of Photonics for Biomedical Science analyzes achievements, new trends, and perspectives of photonics in its application to biomedicine. With contributions from world-renowned experts in the field, the handbook describes advanced biophotonics methods and techniques intensively developed in recent years. Addressing the latest problems in...
An Introduction to Biomedical Optics
An Introduction to Biomedical Optics
Robert Splinter, Brett A. Hooper, 2006
An illustration of the different types of paths followed by photons passing through a scattering medium is shown in Figure 14.38. The Ballistic photons can be collected by means of time gating. Time gating in the pico- and femtosecond range ...
Confocal and Two-Photon Microscopy: Foundations, Applications and Advances
Confocal and Two-Photon Microscopy: Foundations, Applications and Advances
Alberto Diaspro, 2001
Confocal and Two-Photon Microscopy Foundations, Applications, and AdvancesEdited by Alberto DiasproConfocal and two-photon fluorescence microscopy has provided researchers with unique possibilities of three-dimensional imaging of biological cells and tissues and of other structures such as semiconductor integrated circuits. Confocal and Two-Photon ...
Photon-based Medical Imagery
Photon-based Medical Imagery
Hervé Fanet, 2013
as selective and use coherence information also used by snake photons, increasing the signal to noise ratio, but the spatial resolution decreases as a result. Beyond a few centimeters of tissue, it is no longer possible to use Ballistic photons.
Interferometry in Speckle Light: Theory and Applications : ...
Interferometry in Speckle Light: Theory and Applications : ...
Pierre Jacquot, Jean-Marc Fournier, 2000
Selection. of. Ballistic. Photons. in. Diffusing. Media. by. Numerical. Heterodyne. Holography. F. Le Clerc', L. Collot2, M. Gross' ' Laboratoire Kastler Brossel de L' Ecole Normale Superieure (LK.B-ENS), 24 Rue Lhomond, 7523 1 Paris Cedex ...
Introduction to Biomedical Engineering, Third Edition
Introduction to Biomedical Engineering, Third Edition
2011
Introduction to Biomedical Engineering is a comprehensive survey text for biomedical engineering courses. It is the most widely adopted text across the BME course spectrum, valued by instructors and students alike for its authority, clarity and encyclopedic coverage in a single volume. Biomedical engineers need to understand the wide range of topic...
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