Results 141 to 150 of about 5,015,013 (196)
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Nonlinear optics and optical activity
Journal of Physics C: Solid State Physics, 1972The second-harmonic generation coefficients of sodium chlorate and sodium bromate crystals are estimated from their optical rotatory powers by means of the anharmonic oscillator model of Condon, Altar and Eyring. The correct signs are determined, and reasonably good numerical agreement with experiment is obtained.
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Journal of Modern Optics, 1989
In ‘Active Optics II’, the active correction of a 1 m test mirror was described in detail. A residual aberration term was found which still required correction in order to achieve the aim of the experiment: removal of all systematic defects leaving only statistical or high-frequency noise. The present paper describes the interferometric confirmation of
R.N. Wilson +4 more
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In ‘Active Optics II’, the active correction of a 1 m test mirror was described in detail. A residual aberration term was found which still required correction in order to achieve the aim of the experiment: removal of all systematic defects leaving only statistical or high-frequency noise. The present paper describes the interferometric confirmation of
R.N. Wilson +4 more
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Constrained least-squares algorithm for active optics correction of a primary mirror.
Applied Optics, 2022Wenru Li +3 more
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Journal of Modern Optics, 1991
This paper is the fourth, and last, in the series on active optics as realized in the ESO New Technology Telescope (NTT). It gives a detailed description of the set-up and optimization of the optical system, based on the three levels (i.e. time frequencies) of active correction. The first results in direct imagery with the telescope optimized only near
R.N. Wilson +3 more
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This paper is the fourth, and last, in the series on active optics as realized in the ESO New Technology Telescope (NTT). It gives a detailed description of the set-up and optimization of the optical system, based on the three levels (i.e. time frequencies) of active correction. The first results in direct imagery with the telescope optimized only near
R.N. Wilson +3 more
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Journal of Modern Optics, 1987
A system of ‘active optics’ control for the optical imagery of astronomical telescopes has been under development in the European Southern Observatory for about ten years. Its first application will be in the 3·5 m New Technology Telescope (NTT) scheduled for operation in 1988.
R.N. Wilson, F. Franza, L. Noethe
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A system of ‘active optics’ control for the optical imagery of astronomical telescopes has been under development in the European Southern Observatory for about ten years. Its first application will be in the 3·5 m New Technology Telescope (NTT) scheduled for operation in 1988.
R.N. Wilson, F. Franza, L. Noethe
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Resonance optical activity in multihelicoidal optical fibers
Optics Letters, 2016We have studied the effect of optical activity (OA) in optical fibers with multihelical distribution of refractive index profiles near the resonance wavelength, at which the conversion of an incident Gaussian beam into an optical vortex (and vice versa) takes place.
C N, Alexeyev, B P, Lapin, M A, Yavorsky
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Hückel Theory and Optical Activity
Journal of the American Chemical Society, 2015Optical rotations and rotatory strengths are calculated for achiral, conjugated hydrocarbons with the aim of determining to what extent the sum-over-π → π* rotatory strengths are sufficient to account for nonresonant optical activity. The separability of σ and π electrons might provide a short cut to the interpretation of chiroptical structure-property
Veronica L, Murphy, Bart, Kahr
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Biochemical and Biophysical Research Communications, 1967
F C, Yong, T E, King
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F C, Yong, T E, King
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Damping of piezoelectric space instruments: application to an active optics deformable mirror
CEAS Space Journal, 2019D. Alaluf +3 more
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2012
Introduction A molecule is optically active if it interacts differently with left- and right-circularly polarized light. This differential interaction gives rise to two related phenomena known as optical rotatory dispersion (ORD) and circular dichroism (CD).
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Introduction A molecule is optically active if it interacts differently with left- and right-circularly polarized light. This differential interaction gives rise to two related phenomena known as optical rotatory dispersion (ORD) and circular dichroism (CD).
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