红外双光子视觉的色彩特征

IF 8.4 1区 物理与天体物理 Q1 OPTICS
Optica Pub Date : 2023-12-19 DOI:10.1364/optica.507240
Pedro Gil, Juan Tabernero, Silvestre Manzanera, Christina Schwarz, and Pablo Artal
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引用次数: 0

摘要

人类能够通过一种称为双光子(2P)吸收的过程,将脉冲近红外光(NIR)感知为波长约为可见光一半的光。虽然人们对双光子吸收的了解已有几十年,但对双光子吸收的色彩感知仍未定性。在这项研究中,我们进行了脉冲近红外光和连续可见光之间的配色实验。我们研究了波长从 880 纳米到 1100 纳米的七种近红外波长,以及瞳孔平面上从 10 微瓦到 30 微瓦的三种辐射功率值。通过这些实验,我们获得了色度坐标、色度图、主波长和平均光谱。我们发现,感知到的色调与波长之间存在明显的相关性,色调从 880 纳米的红紫色转变为 1100 纳米的蓝色、绿色和黄绿色。此外,我们还观察到色调与功率之间的关系,波长越接近光谱的可见光端越明显。这种现象似乎是视觉色素的单光子吸收率(1P)和双光子吸收率之间的比值随强度变化而变化的结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Color characterization of infrared two-photon vision
Humans have the ability to perceive pulsed near-infrared (NIR) light as visible light with about half the wavelength through a process known as two-photon (2P) absorption. Although it has been known for several decades, color perception in 2P vision remains uncharacterized. In this study, we conducted color matching experiments between pulsed NIR light and continuous visible light. We investigated seven NIR wavelengths ranging from 880 to 1100 nm, along with three radiant power values at the pupil plane, varying from 10 to 30 µW. Through these experiments, we obtained chromatic coordinates, chromaticity diagrams, dominant wavelengths, and average spectra. We found a pronounced correlation between perceived hue and wavelength, with hues shifting from reddish purple at 880 nm to blue, green, and yellowish green at 1100 nm. Moreover, we observed a relationship between hue and power for the wavelengths closer to the visible end of the spectrum. This phenomenon appears to be a consequence of the intensity-dependent ratio between the single photon (1P) and 2P absorption efficiencies of the visual pigments.
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来源期刊
Optica
Optica OPTICS-
CiteScore
19.70
自引率
2.90%
发文量
191
审稿时长
2 months
期刊介绍: Optica is an open access, online-only journal published monthly by Optica Publishing Group. It is dedicated to the rapid dissemination of high-impact peer-reviewed research in the field of optics and photonics. The journal provides a forum for theoretical or experimental, fundamental or applied research to be swiftly accessed by the international community. Optica is abstracted and indexed in Chemical Abstracts Service, Current Contents/Physical, Chemical & Earth Sciences, and Science Citation Index Expanded.
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