Abstract
The effect of waveguiding property (i.e., the intensity distribution) of the photoreceptor on the number of photons absorbed in a photoreceptor has been studied. It has been found that the effect is significant only for large values of the exposure and the maximum effect is less than 11% in the case of human rod photoreceptor. In the analysis, the funnelling effect, which follows from the coupling between the interior and exterior fields, has not been considered.
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References
Alpern M, Pugh EN (1974) The density and photosensitivity of human rhodopsin in the living retina. J Physiol 237: 341–370
Dartnall HJA (1968) The photosensitivities of visual pigments in the presence of hydroxylamine. Vision Res 8: 339–358
Dartnall HJA, Goodeve CF, Lythgoe RJ (1936) The quantitative analysis of the photochemical bleaching of visual purple. Proc R Soc London Ser A 156: 158–170
Dartnall HJA, Goodeve CF, Lythgoe RJ (1938) The effect of temperature on the photochemical bleaching of visual purple solutions. Proc R Soc London Ser A 164: 216–230
Enoch JM (1960) Waveguide modes: Are they present, and what is their possible role in the visual mechanism? J Opt Soc Am 50: 1025–1026
Enoch JM (1961) Nature of the transmission of energy in the retinal receptors. J Opt Soc Am 51: 1122–1126
Enoch JM (1963) Optical properties of retinal receptors. J Opt Soc Am 53: 71–85
Liebman PA, Entine G (1974) Lateral diffusion of visual pigment in photoreceptor disk membranes. Science 185: 457–459
Onderdelinden D, Strackee L (1973) Computed bleaching curves for pigments in a layer. Vision Res 13: 1297–1301
Poo MM, Cone RA (1973) Lateral diffusion of rhodopsin in Necturus rods. Exp Eye Res 17: 503–510
Poo MM, Cone RA (1974) Lateral diffusion of rhodopsin in the photoreceptor membrane. Nature 247: 438–441
Pugh EN (1975) Rhodopsin flash photolysis in man. J Physiol 248: 393–412
Rabinovitch B (1973) Use of a single beam of light to promote a photochemical reaction and to follow its kinetics. Photochem Photobiol 17: 479–485
Röhler R, Fischer W (1971) Influence of waveguides modes on the light absorption in photoreceptors. Vision Res 11: 97–101
Snyder AW (1969) Asymptotic expressions for eigenfunctions and eigenvalues of a dielectric or optical waveguide. IEEE Trans Microwave Theory Tech MTT-17: 1130–1138
Wolken JJ (1961) A structural model for a retinal rod. In: Smelser GK (ed) The structure of the eye. Academic Press, New York London, pp 69–81
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Work partially supported by the Department of Science and Technology (India)
B. D. Gupta is associated with the School of Bioscience Studies
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Gupta, B.D., Sharma, A. Absorption of light in photoreceptors: Effect of waveguiding property. Biophys. Struct. Mechanism 6, 227–232 (1980). https://doi.org/10.1007/BF00537295
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DOI: https://doi.org/10.1007/BF00537295