Results 301 to 310 of about 1,099,801 (352)

Ultralow Dispersion Multicomponent Thin‐Film Chalcogenide Glass for Broadband Gradient‐Index Optics

Advances in Materials, 2018
A novel photothermal process to spatially modulate the concentration of sub‐wavelength, high‐index nanocrystals in a multicomponent Ge‐As‐Pb‐Se chalcogenide glass thin film resulting in an optically functional infrared grating is demonstrated.
M. Kang, A. Swisher, A. Pogrebnyakov, Liu Liu, A. Kirk, S. Aiken, L. Sisken, C. Lonergan, J. Cook, T. Malendevych, F. Kompan, I. Divliansky, L. Glebov, M. Richardson, C. Rivero‐Baleine, C. Pantano, T. Mayer, K. Richardson   +17 more
semanticscholar   +1 more source

Catenary optics: a perspective of applications and challenges

Journal of Physics: Condensed Matter, 2022
Catenary optics is an emerging direction of subwavelength optics, which is indispensable in describing the electric fields and dispersion property of coupled metallic subwavelength structures, and designing broadband high-efficiency geometric-phase ...
Xiangang Luo, Fei Zhang, M. Pu, Mingfeng Xu   +3 more
semanticscholar   +1 more source

Wavelength dispersion of optical waveguides

Applied Optics, 1980
Coefficients that characterize the contribution to the total waveguide dispersion from guide geometry and from material dispersion are introduced. These are cast in terms of the normalized parameters of normalized frequency, asymmetry measure, and effective guide index.
G A, Bennett, C L, Chen
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Optical rotatory dispersion of viruses

Journal of Molecular Biology, 1967
The optical rotatory dispersion spectra of the following 16 viruses were measured: T2, T2(gt), T4, T6, T6(gt), λc, λ(K), λ(C), X174, T5, T7, B3, MS2, f2, R17 and α. T2 ghosts and T2, λ(C), λ(K), T7 and X174 DNA's and R17 RNA were also measured. The effect of high concentrations of lithium chloride salts at neutral pH on the DNA molecule in solution was
M F, Maestre, I, Tinoco
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Dispersive two-photon optical multistability

Optics Letters, 1982
Within the mean-field approximation, an analysis of the two-photon equation of state predicts double optical bistability and tristability. When spatial dependence is included, a precise description of multistability for the Kerr regime and for higher intensities is given.
J A, Hermann, B V, Thompson
openaire   +2 more sources

Subwavelength Artificial Structures: Opening a New Era for Engineering Optics

Advances in Materials, 2018
In the past centuries, the scale of engineering optics has evolved toward two opposite directions: one is represented by giant telescopes with apertures larger than tens of meters and the other is the rapidly developing micro/nano‐optics and ...
Xiangang Luo
semanticscholar   +1 more source

Dispersive Optical Bistability with Fluctuations

Physical Review A, 1981
We consider the phenomenon of dispersive optical bistability as an example of a non-equilibrium steady state lacking detailed balance. The Fokker Planck equation for the transmitted electromagnetic field is derived. For a special case of parameters we present an exact solution of the stationary distribution.
R. Graham, A. Schenzle
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THE DISPERSIVE OPTICAL MODEL

1992
The advantages of the dispersive optical model for the analysis of neutron interactions are described, and recent analyses reviewed.
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Optical resonator with negative dispersion

Optics Letters, 1984
Analysis of an optical ring resonator consisting of a prism and two mirrors demonstrates that such a resonator can have adjustable dispersion of either sign. The dispersion is proportional to the second derivative of the optical path length in the resonator with respect to wavelength.
J P, Gordon, R L, Fork
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New exact optical soliton solutions for nonlinear Schrödinger equation with second-order spatio-temporal dispersion involving M-derivative

Modern physics letters B, 2019
This paper considers the generalized nonlinear Schrödinger (GNLS) equation with group velocity dispersion and second-order spatio-temporal dispersion coefficients.
B. Ghanbari, J. F. Gómez‐Aguilar
semanticscholar   +1 more source