Results 201 to 210 of about 31,547 (248)
Some of the next articles are maybe not open access.
Pupil responses to foveal exchange of monochromatic lights
Journal of the Optical Society of America, 1980Temporal exchanges of equiluminant monochromatic lights of different spectral distributions produced a momentary constriction of the pupil in man. This is not a stimulus artifact because exchanges of two lights with identical distributions in the same apparatus produced no response.
R S, Young, M, Alpern
openaire +2 more sources
How monochromatic is laser light?
American Journal of Physics, 1979Two derivations of the fundamental laser linewidth are presented that have been used successfully in introductory courses. The cause of the finite linewidth is identified with phase fluctuations in the electric field due to spontaneous emission. A factor of 2 discrepancy between the energy and field analyses is explained.
openaire +1 more source
Pulse correction to monochromatic light-beam propagation
Optics Letters, 2001The problem of diffraction of few-cycle light pulses is solved by means of a perturbative technique. The propagated field is expressed as a series of correction terms to the field obtained from diffraction laws for many-cycle pulses. The features previously reported for diffraction of ultrashort pulses are reproduced by first- and second-order ...
openaire +2 more sources
Comment on “Degree of paraxiality for monochromatic light beams”
Optics Letters, 2008This Comment shows that the parameter called the degree of paraxiality of a monochromatic beam [Opt. Lett.33, 1360 (2008)] was derived using misleading criteria and that the results in that Letter might lack physical meaning.
openaire +2 more sources
Correlation between intensity and phase in monochromatic light
Journal of the Optical Society of America A, 2005Analytical expressions to describe the phase gradient of monochromatic light by means of the three-dimensional intensity distribution are derived. With these formulas it is shown that the two-dimensional phase gradient in a plane can be completely determined from noninterferometric intensity measurements if the light propagates strictly in one ...
openaire +2 more sources
A FAST, ACCURATE MONOCHROMATIC LIGHT STIMULUS GENERATOR
Optometry and Vision Science, 1972ABSTRACT The light emitting diode, in conjunction with a feedback control circuit, can be used as a light stimulus generator characterized by good speed. small size, and minimal power supply equipments.
openaire +2 more sources
Saturation of intermittent monochromatic lights
Vision Research, 1978R, Siwoff, P L, Pease
openaire +2 more sources
Spirit in the (Monochromatic) Light
PAJ: A Journal of Performance and Art, 2023openaire +1 more source
THE VISUAL ACUITY IN MONOCHROMATIC LIGHTS AND IN MIXTURES OF TWO MONOCHROMATIC LIGHTS
Acta Ophthalmologica, 1946openaire +1 more source