Publication: Vision with pulsed infrared light is mediated by nonlinear optical processes
Authors
Manzanera Román, Salvador ; Sola Martínez, Daniel ; Khalifa, N. ; Artal Soriano, Pablo
item.page.secondaryauthor
item.page.director
Publisher
publication.page.editor
publication.page.department
DOI
https://doi.org/10.1364/BOE.403695
item.page.type
info:eu-repo/semantics/contributionToPeriodical
Description
©<2020>. This manuscript version is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by /4.0/
This document is the Published Manuscript version of a Published Work that appeared in final form in [Biomedical Optics Express]. To access the final edited and published work see[https://doi.org/10.1364/BOE.403695]
Abstract
When the eye is exposed to pulsed infrared (IR) light, it is perceived as visible of
the corresponding half wavelength. Previous studies have reported evidence that this is due to a
non-linear two-photon absorption process. We have carried out a study which provides additional
support to this nonlinear hypothesis. To this end, we have measured the spectral sensitivity
at 2 different pulse repetition rates and have developed a theoretical model to account for the
experimental observations. This model predicts a ratio between the minimum powers needed to
detect the visual stimulus at the 2 pulse repetition rates employed of 0.45 if the stimulus were
detected through a nonlinear effect and 1 if it were caused by a linear effect as in normal vision.
The value experimentally found was 0.52 ± 0.07, which supports the hypothesis of a nonlinear
origin of the two-photon vision phenomena.
Citation
10
11
Biomedical Optics Express
http://www.opticsinfobase.org/boe/home.cfm
11
Biomedical Optics Express
http://www.opticsinfobase.org/boe/home.cfm
item.page.embargo
Collections
Ir a Estadísticas
Este ítem está sujeto a una licencia Creative Commons. http://creativecommons.org/licenses/by/4.0/