Results 71 to 80 of about 1,060 (159)
Nanophotonics, Volume 15, Issue 8, 24 April 2026.A pattern‐free nonreciprocal emitter is demonstrated, exhibiting strong nonreciprocity (η > 0.6 or 0.8) across an unprecedented angular range (Δθ = 75° or 60°) at the target wavelength with monochromaticity of Δλ/λ₀ < 0.54%. The wavelength is tunable without compromising the rainbow‐free or ultrawide angular response, establishing a generalizable ...
Kaixia Xu +4 more
wiley +1 more source
Modeling full PCSELs and VCSELs using modified rigorous coupled-wave analysis
An integrated rigorous coupled-wave analysis (RCWA) algorithm is presented in this paper, which can simulate full vertical-cavity surface-emitting laser (VCSEL) and photonic crystal surface-emitting laser (PCSEL) structures.
Charlton, Martin D.B. +2 more
core +1 more source
, 2011 This paper presents a new implementation of the Rigorous Coupled Wave Analysis (RCWA) method to model the propagation of electro-magnetic waves in nanostructured optoelectronic solid state devices like solar cells.
I. Semenikhin +8 more
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Complex method for angular-spectral analysis of volume phase diffraction gratings recorded in photopolymers [PDF]
Journal of the European Optical Society-Rapid Publications, 2016 Photopolymer recording materials are nowadays widely used for recording of diffraction gratings and other diffraction elements. For obtaining the best performance of these diffraction gratings for desired applications, it is important to assess these ...
Vojtís̃ek P., Květoň M., Richter I.
doaj +1 more source
Nanophotonics, Volume 15, Issue 8, 24 April 2026.The Green’s function integral framework provides a unified physical picture of microscopic phase mismatch and introduces a phase‐matching factor (PMF) as a quantitative design metric for harmonic coherence. By rational phase engineering, this approach achieves a PMF of 0.91 and an SHG efficiency of 26.7% in compact nonlinear nanophotonic devices ...
Chengkang Liang +4 more
wiley +1 more source
International Journal of Automation and Smart Technology, 2014 Large differences in the refractive index between semiconductors (Si, GaAs, etc.) and air produces considerable Fresnel loss, which can seriously hinder the absorption of sunlight by photovoltaic solar cells.
Yen-Yu Chou +2 more
doaj +1 more source
Small Structures, Volume 7, Issue 4, April 2026.Highly enhanced directional emission with narrow angular divergence is experimentally demonstrated from InP/ZnS quantum dots (QDs) and CdSe/ZnS QD‐integrated dielectric metasurfaces. The low intrinsic losses of the InP/ZnS QD layer enable significantly higher emission enhancement when the two QD types are coated on the same metasurface.
Jungho Han +4 more
wiley +1 more source
Broadband Form Birefringent Quarter-Wave Plate for the Mid-Infrared Wavelength Region
, 1999 We discuss the design, fabrication and optical performance of a broadband form-birefringent quarter-wave plate for the 3.5 to 5 m wave-length region. Rigorous coupled wave analysis (RCWA) was used to design the requisite subwavelength grating for silicon
Deguzman, P. C., Nordin, Gregory P.
core +1 more source
Advanced Functional Materials, Volume 36, Issue 24, 23 March 2026.Modular diffractive deep neural network metasurfaces encode and reconstruct holograms across layer combinations and wavelengths, enabling secure, multifunctional operation. Each layer acts independently yet composes jointly, yielding up to m(2N −1) channels for m wavelengths and N layers.
Cherry Park +4 more
wiley +1 more source
Diffraction grating theory with RCWA or the C method [PDF]
, 2004 Diffraction gratings are often used in optical metrology. When an electromagnetic wave is incident on a grating, the periodicity of the grating causes amultiplicity of diffraction orders.
Aa, van der, N.P., Aa, NP Nico van der
core