Results 171 to 180 of about 821 (229)

Crossed Surface Relief Gratings as Nanoplasmonic Biosensors

ACS Sensors, 2017
We present an original, low-cost nanoplasmonic (bio)sensor based on crossed surface relief gratings (CSRGs) generated from orthogonally superimposed surface relief gratings (SRGs) on gold-coated azo-glass substrate. This surface plasmon resonance (SPR)-based sensing approach is unique, since the light transmitted through a CSRG is zero except in the ...
Srijit Nair, Carlos Escobedo, Ribal Georges Sabat   +2 more
openaire   +2 more sources

Diffraction characteristics of photoresist surface-relief gratings

Applied Optics, 1984
Theoretical results from rigorous coupled-wave analysis are compared with experimental diffraction characteristics for holographically formed dielectric photoresist surface-relief gratings with deep grooves (greater than a grating period) and high diffraction efficiency (>85%).
M G, Moharam, T K, Gaylord, G T, Sincerbox, H W, Werlich, B, Yung   +4 more
openaire   +2 more sources

Effective grating theory for resonance domain surface-relief diffraction gratings

Journal of the Optical Society of America A, 2005
An effective grating model, which generalizes effective-medium theory to the case of resonance domain surface-relief gratings, is presented. In addition to the zero order, it takes into account the first diffraction order, which obeys the Bragg condition.
Michael A, Golub, Asher A, Friesem
openaire   +2 more sources

Optimum parallel-face slanted surface-relief gratings

Applied Optics, 2007
Using a combination of rigorous coupled-wave analysis and simulated annealing, parallel-face slanted surface-relief gratings (PFSSRGs) are optimized. For substrate-mode optical interconnects, profiles are presented for both polymer and silicon PFSSRGs for both TE and TM polarizations at normal incidence with grating periods designed to give a 45 ...
Maikisch, Jonathan S., Gaylord, Thomas K.   +1 more
openaire   +3 more sources

Modelling of diffraction efficiency of surface relief gratings

2024 Advanced Topics on Measurement and Simulation (ATOMS)
Tsyntsaru Natalia
exaly   +2 more sources

Antireflection gold surface-relief gratings: experimental characteristics

Applied Optics, 1988
A systematic procedure using the effective index method and impedance matching has recently been developed Appl. Opt. 26, 3123 (1987)] for the design of antireflection high-spatial-frequency rectangulargroove gratings on lossy materials including high conductivity metals.
N F, Hartman, T K, Gaylord
openaire   +2 more sources

Surface-relief fiber Bragg gratings for sensing applications

Applied Optics, 2006
We present a new type of fiber Bragg grating (FBG) in which we etch the grating into the flat surface of a D-shaped optical fiber. Instead of being written in the core of the fiber, as are standard FBGs, these surface-relief FBGs are placed in the cladding above the core. These gratings are a viable alternative to standard FBGs for sensing applications.
Kevin H, Smith, Benjamin L, Ipson, Tyson L, Lowder, Aaron R, Hawkins, Richard H, Selfridge, Stephen M, Schultz   +5 more
openaire   +2 more sources

Study of blazed surface relief transmission grating

Diffractive Optics and Micro-Optics, 2002
A blazed surface relief transmission grating is commonly used to efficiently defract light into a single order, but the relationships governing the optical behavior have not been well described. The Finite Difference Time Domain (FDTD) computation technique has been applied to optics simulations in recent years [1,2,3] and is here applied to a blazed ...
Jianru Shi, Philip J. Bos, Bruce Winker
openaire   +1 more source

Spectroscopic ellipsometry on sinusoidal surface-relief gratings

Applied Surface Science, 2005
Spectroscopic ellipsometry (SE) is used to study a sinusoidal-relief grating fabricated on a surface of transparent polymer. An optically thick polymer layer is situated on a glass substrate and its refraction index is optically matched to the index of the glass.
R. Antos, I. Ohlidal, D. Franta, P. Klapetek, J. Mistrik, T. Yamaguchi, S. Visnovsky   +6 more
openaire   +1 more source

Diffraction on a surface-relief grating: mechanisms and interpretation

SPIE Proceedings, 1999
This contribution concentrates on theoretical studies of diffraction processes in surface-relief gratings. The characterization of diffraction processes and mechanisms is presented and discussed, together with the regions with typical diffraction regimes.
Ivan Richter, Zbynek Ryzi, Pavel Fiala
openaire   +1 more source