Results 91 to 100 of about 294 (151)

Miniaturisation of Raman spectroscopy systems: from benchtop to backpocket.

Lab Chip
Hardy M, Kanade PP, Buchan E, Goldberg Oppenheimer P, McPolin CPT, Bowman RM.   +5 more
europepmc   +1 more source

Windows into Planetary Science: A Review of Advances in Raman Spectroscopy, Laser-Induced Breakdown Spectroscopy, and Photoluminescence Spectroscopy for Remote Sensing Applications. [PDF]

ACS Appl Opt Mater
Hazra M, Corpino R, Ricci PC.
europepmc   +1 more source

Automated, real-time material detection during ultrashort pulsed laser machining using laser-induced breakdown spectroscopy, for process tuning, end-pointing, and segmentation. [PDF]

PLoS One
Choi H, Phoulady A, Hoveida P, May N, Shahbazmohamadi S, Tavousi P.   +5 more
europepmc   +1 more source

Speciation of vanadium and the interacted solid surface of δ-alumina adsorbent in aqueous media in presence of humic acid. [PDF]

Sci Rep
El-Sayed AA.
europepmc   +1 more source

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Planar waveguide echelle gratings in silica-on-silicon

IEEE Photonics Technology Letters, 2004
Silica planar waveguide echelle grating demultiplexers with 48 channels and 256 channels are described and demonstrated. Polarization effects due to stress birefringence and polarization-dependent grating efficiency have been eliminated using a modified polarization compensator and grating design.
Muthukumaran Packirisamy, D -X Xu, A Delage   +2 more
exaly   +2 more sources

The use of echelle gratings in single-pass spectrometers

Solar Physics, 1971
D Emerson, E A Mallia, D E Blackwell
exaly   +2 more sources

Echelle gratings: their testing and improvement

Applied Optics, 1976
Tests are described on new master echelles of very large size and on others having unusually high blaze angles, produced on interferometrically controlled ruling engines. Defects arising from the gravitational distortion of large grating blanks during ruling were reduced by the use of calibrated edge-supporting springs to diminish sag.
G R, Harrison, E G, Loewen, R S, Wiley
openaire   +2 more sources

Blaze characteristics of echelle gratings

Applied Optics, 1982
A new model for the blaze function of the two in-plane mountings of echelle gratings is described and extended to account for defects in the edges of the grooves. Expressions for the relative efficiency are given. The model shows that the wavelength for the maximum blaze intensity differs slightly from the wavelength lambda(0) satisfying mlambda(0) = d[
S, Engman, P, Lindblom
openaire   +2 more sources

The fabrication of the holographic echelle gratings

SPIE Proceedings, 2015
The echelle gratings with the ultra-high resolution are one of the key elements in spectroscopy, optical communications and other fields. Currently, the diamond ruling and the wet etching technique are two primary methods to fabricate echelle gratings. In this paper, we have adopted a new method of the echelle gratings fabrication.
Quan Liu, Fei Gao, Yang Zhou, Jianhong Wu   +3 more
openaire   +1 more source

Echelle gratings for the near-infrared

SPIE Proceedings, 2012
We report on echelle gratings produced by diamond turning with groove spacings coarser than 20 lines per mm. Increasing the groove spacing of an echelle reduces the free spectral range allowing infrared orders to be matched to the detector size. Reflection echelle gratings designed for the near-infrared have potential wide application in both ambient ...
Kenneth H. Hinkle, Richard R. Joyce, Bernhard W. Bach, Erich Bach, Kirk G. Bach, Brooke M. Beam, Gary Poczulp, Verne V. Smith, Lloyd Wallace   +8 more
openaire   +1 more source