Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Clifton D. Clark"'
Autor:
Michael L. Denton, Clifton D. Clark, Gary D. Noojin, Haleigh West, Allison Stadick, Taufiquar Khan
Publikováno v:
Frontiers in Ophthalmology, Vol 4 (2024)
Correlating damage outcomes to a retinal laser exposure is critical for diagnosis and choosing appropriate treatment modalities. Therefore, it is important to understand the causal relationships between laser parameters, such as wavelength, power den
Externí odkaz:
https://doaj.org/article/d9596bb214f04a3ba59a3ce3a2d21ec4
Autor:
Michael P. DeLisi, Semih S. Kumru, Nicholas J. Gamez, Benjamin A. Rockwell, Clifton D. Clark, Robert J. Thomas
Publikováno v:
Journal of Laser Applications. 33:022023
Computational models are capable of simulating the expected thermal response of biological tissue to laser irradiation. A typical laser tissue model accounts for optical energy deposition, heat transfer, and damage assessment, with the latter often r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6f76969f9860ff2b8cb55e089c13000
https://doi.org/10.2351/7.0000367
https://doi.org/10.2351/7.0000367
Autor:
Clifton D. Clark, Robert J. Thomas
Publikováno v:
Optical and Quantum Electronics. 41:849-857
We develop a method for non-paraxial beam propagation that obtains a speed improvement over the Finite-Difference Split-Step method (FDSSNP) recently reported by Sharma et al. The method works in the eigen-basis of the Laplace operator \({\left(\nabl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7834bc98e3267625dbf2e893942b37d
https://doi.org/10.1007/s11082-010-9399-6
https://doi.org/10.1007/s11082-010-9399-6
Autor:
Amanda J. Tijerina, Clifton D. Clark, Robert J. Thomas, Benjamin A. Rockwell, Phillip N. Dyer, John M. Rickman, Chad A. Oian, Cherry C. Castellanos, Aurora D. Shingledecker, Gary D. Noojin, Michael L. Denton
Publikováno v:
SPIE Proceedings.
Laser damage thresholds were determined for expos ure to 2.5-ms 532-nm pulses in an established in vitro retinal model. Single and multiple pulses (10, 100, 1000) were delivered to the cultured cells at three different pulse repetition frequency (PRF
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f896cfc6a9d1ac1f6141401ba04112eb
https://doi.org/10.1117/12.2081243
https://doi.org/10.1117/12.2081243
Thermal and damage data from multiple microsecond pulse trains at 532nm in an in vitro retinal model
Autor:
Cherry C. Castellanos, Michael L. Denton, Benjamin A. Rockwell, Gary D. Noojin, Robert J. Thomas, John M. Rickman, Amanda J. Tijerina, Aurora D. Shingledecker, Clifton D. Clark, Sarah J. Boukhris, Aaron F. Hoffman
Publikováno v:
SPIE Proceedings.
An artificially pigmented retinal pigment epithelial (RPE) cell model was used to study the damage rates for exposure to 1, 10, 100, and 1,000 230-μs laser pulses at 532 nm, at two different concentrations of melanosome particles (MPs) per cell. Mul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1703db54d70e66de9490fae6101e7bc5
https://doi.org/10.1117/12.2040607
https://doi.org/10.1117/12.2040607
Publikováno v:
Optics express. 21(13)
We develop a higher-order method for non-paraxial beam propagation based on the wide-angle split-step spectral (WASSS) method previously reported [Clark and Thomas, Opt. Quantum. Electron., 41, 849 (2010)]. The higher-order WASSS (HOWASSS) method app
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::004fb20edbbdc7e904ae161088790d00
https://pubmed.ncbi.nlm.nih.gov/23842367
https://pubmed.ncbi.nlm.nih.gov/23842367
Autor:
Michael L. Denton, Clifton D. Clark, Frederick J. Barrera, Dhiraj K. Sardar, Elharith M. Ahmed, Edward A. Early
Publikováno v:
Computers in biology and medicine. 43(12)
Since its invention in the early 1960s, the laser has been used as a tool for surgical, therapeutic, and diagnostic purposes. To achieve maximum effectiveness with the greatest margin of safety it is important to understand the mechanisms of light pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13ec3bf38f22cdbfd8d8458b15750cf3
https://pubmed.ncbi.nlm.nih.gov/24290944
https://pubmed.ncbi.nlm.nih.gov/24290944
Autor:
Ashley J. Welch, Robert J. Thomas, Erica L. Towle, Clifton D. Clark, Michelle T. Aaron, Andrew K. Dunn
Publikováno v:
SPIE Proceedings.
In recent years, several studies have been investigating the impact of thermal lensing in ocular media on the visual function. These studies have shown that when near-infrared (NIR) laser energy (1319 nm) is introduced to a human eye, the heating of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffbea4db6b48b69387c921a46c142ca6
https://doi.org/10.1117/12.2001168
https://doi.org/10.1117/12.2001168
Autor:
Benjamin A. Rockwell, Adam Schenk, Clifton D. Clark, Robert J. Thomas, Larry E. Estlack, Curtis W. Burney, Michael L. Denton, Gary D. Noojin
Publikováno v:
SPIE Proceedings.
Laser exposure duration dictates whether tissues subjected to short visible wavelengths ( ≤ 514 nm) are damaged by thermal (e.g. 0.1 s) or non-thermal ( ≥ 100 s) mechanisms. Somewhere between these extremes, an abrupt transition between the two d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::000f28a72e12937a8cadff0fbce25111
https://doi.org/10.1117/12.873469
https://doi.org/10.1117/12.873469
Autor:
David J. Stolarski, Benjamin A. Rockwell, Harvey M. Hodnett, Kurt J. Schuster, Semih S. Kumru, Clifton D. Clark, Gary D. Noojin, Jeffrey W. Oliver
Publikováno v:
International Laser Safety Conference.
In order to explore the alternative use of cynomolgus (Macaca fasicularis) as a substitute for the ubiquitous rhesus monkey (Macaca mulatta) as a model for retinal damage, a series of “bridging” experiments utilizing visible lasers (413 nm, 532 n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3db60d8302579a3b873bca1305f14dd4
https://doi.org/10.2351/1.5056746
https://doi.org/10.2351/1.5056746