Journal ArticleDOI
Diffraction analysis of dielectric surface-relief gratings
M. G. Moharam,Thomas K. Gaylord +1 more
TLDR
In this article, a dielectric surface-relief grating is analyzed using rigorous coupled-wave theory and the analysis applies to arbitrary grating profiles, groove depths, angles of incidence, and wavelengths.Abstract:
Diffraction by a dielectric surface-relief grating is analyzed using rigorous coupled-wave theory. The analysis applies to arbitrary grating profiles, groove depths, angles of incidence, and wavelengths. Example results for a wide range of groove depths are presented for sinusoidal, square-wave, triangular, and sawtooth gratings. Diffraction efficiencies obtained from the present method of analysis are compared with previously published numerical results. To obtain large diffraction efficiencies (greater than 85%) for gratings with typical substrate permittivities, it is shown that the grating profile should possess even symmetry.read more
Citations
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Ultraviolet and visible photonic devices with subwavelength grating
TL;DR: In this article, the authors used the eigenmode in subwavelength grating (SWG) to reveal the propagation mechanism of the mode in SWG and showed that the dispersion relation indicated that the wavenumber of the Eigenmode is broadened by the deceasing life time due to the photon absorption in the SWG.
Vertical-cavity laser with a novel grating mirror
TL;DR: In this paper, two versions of optically-pumped hybrid VCLs have been fabricated for demonstrating in-plane emission into a Si waveguide, which can emit light laterally into a si waveguide.
Proceedings ArticleDOI
Polarization-selective infrared bandpass filter based on a two-layer subwavelength metallic grating
Andrew J. Hohne,Benjamin Moon,Carol L. Baumbauer,Tristan Gray,James Dilts,Joseph A. Shaw,David L. Dickensheets,Wataru Nakagawa +7 more
TL;DR: In this article, a polarization-selective infrared bandpass filter based on a two-layer subwavelength metallic grating for use in polarimetric imaging was presented. But the design of the grating was not discussed.
Book ChapterDOI
Radiometry of partially coherent radiation
TL;DR: In this paper, a correlation between radiometric observation and the description of wave oscillations by electric and magnetic vector amplitudes is found, but it is only in the electromagnetic field of a plane monochromatic wave, with the phase of its oscillation being an amplitude-invariable function of time, is it possible to construct a singlevalued square correlation between the field intensity and its amplitude.
Journal ArticleDOI
Optical Patterning of Sol–Gel Silica Coatings
Nicolas Desbœufs,Anh-Duc Vu,Khalid Lahlil,Y. Lassailly,Lucio Martinelli,Jean-Pierre Boilot,Jacques Peretti,Thierry Gacoin +7 more
TL;DR: In this article, the photo-induced deformation phenomena in materials using sol-gel azo/silica as a host matrix is revisited, showing that photopatterning can be drastically improved through a careful control of the rheology of the solgel film.
References
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Journal ArticleDOI
Rigorous coupled-wave analysis of planar-grating diffraction
M. G. Moharam,Thomas K. Gaylord +1 more
TL;DR: In this article, a rigorous coupled-wave approach is used to analyze diffraction by general planar gratings bounded by two different media, and the analysis is based on a state-variables representation and results in a unifying, easily computer-implementable matrix formulation.
Journal ArticleDOI
Theory of Periodic Dielect Waveguides
TL;DR: In this paper, the propagation of electromagnetic waves along open periodic, dielectric waveguides is formulated as a rigorous and exact boundary-value problem, and the characteristic field solutions are shown to be of the surface-wave or leaky-wave type, depending on the ratio of periodicity to wavelength (d/lambda).
Journal ArticleDOI
Analysis and Design of Grating Couplers
Theodor Tamir,S. T. Peng +1 more
TL;DR: In this paper, simple design criteria for grating couplers which transfer the energy of a beam into or out of an optical waveguide are developed based on an accurate perturbation analysis of the guiding properties of dielectric gratings.
Journal ArticleDOI
Rigorous diffraction theory for transmission phase gratings with deep rectangular grooves
TL;DR: In this article, the diffraction of light by deep rectangular-groove transmission phase gratings is treated by solving Maxwell's equations numerically, and results are given for the light diffracted into the zero order by gratings with grating constants d in the range λ < d < 5λ, aspect ratio b (= linewidth/d), 0 < b < 1, and grating depths a < 5 λ, assuming a refractive index n 0 = 1.
Journal ArticleDOI
Analysis of grating-coupled radiation in GaAs:GaAlAs lasers and waveguides - I
TL;DR: In this paper, a general formulation for arbitrary-shaped gratings which need not be small in size was developed for radiated power from traveling waves as a function of grating tooth height, tooth width, refractive index, waveguide thickness, and period.