Results 11 to 20 of about 88,392 (295)

Invited Article: Multiple-octave spanning high-energy mid-IR supercontinuum generation in bulk quadratic nonlinear crystals [PDF]

open access: yesAPL Photonics, 2016
Bright and broadband coherent mid-IR radiation is important for exciting and probing molecular vibrations. Using cascaded nonlinearities in conventional quadratic nonlinear crystals like lithium niobate, self-defocusing near-IR solitons have been ...
Binbin Zhou, Morten Bache
doaj   +4 more sources

Mid-IR heterogeneous silicon photonics [PDF]

open access: yesSPIE Proceedings, 2013
In this paper we present our recent work on mid-infrared photonic integrated circuits for spectroscopic sensing applications. We discuss the use of silicon-based photonic integrated circuits (either based on silicon-on-insulator or germanium-on-silicon waveguide circuits) for this purpose and detail how a variety of optical functions in the mid ...
Gunther Roelkens   +29 more
openaire   +3 more sources

A Broadband Achromatic Dielectric Planar Metalens in Mid-IR Range

open access: yesPhotonic Sensors, 2022
Metalens are planar lenses composed of the subwavelength arrays, which have unconventional and versatile functionalities to manipulate the light fields compared with the traditional lens. It is noted that the most metalens are designed in a monochromatic
Ye Yuan   +9 more
doaj   +1 more source

Mid-IR Colloidal Nanocrystals [PDF]

open access: yesChemistry of Materials, 2013
Colloidal quantum dots presenting optoelectronic properties into the mid-infrared are reviewed with an emphasis on HgTe. Interband transitions with narrow band gap material and intraband transitions with wide band gap semiconductors can both address the infrared range of wavelengths.
Lhuillier, E.   +3 more
openaire   +1 more source

Mid-IR resonant cavity detectors

open access: yesJournal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena, 2016
Resonant cavity detectors based on III–V materials have been designed, grown entirely by molecular beam epitaxy, fabricated, and tested. They offer a low noise (dark current densities of 0.4 mA/cm2 were measured at 298 K, close to the predicted value of 0.31 mA/cm2), narrow response detector (full width at half maximum of 57 nm in GaSb and 45 nm in ...
T. O’Loughlin   +9 more
openaire   +1 more source

Tracing early evolutionary stages of high-mass star formation with molecular lines [PDF]

open access: yes, 2010
Despite its major role in the evolution of the interstellar medium, the formation of high-mass stars (M > 10 Msol) is still poorly understood. Two types of massive star cluster precursors, the so-called Massive Dense Cores (MDCs), have been observed ...
Herpin, F.   +3 more
core   +5 more sources

Bridging the Mid-Infrared-to-Telecom Gap with Silicon Nanophotonic Spectral Translation [PDF]

open access: yes, 2012
Expanding far beyond traditional applications in optical interconnects at telecommunications wavelengths, the silicon nanophotonic integrated circuit platform has recently proven its merits for working with mid-infrared (mid-IR) optical signals in the 2 ...
A Spott   +31 more
core   +3 more sources

Survey of the ISM in Early-Type Galaxies. IV. The Hot Dust Component [PDF]

open access: yes, 2002
We present mid-IR photometric properties for a sample of 28 early-type galaxies observed at 6.75, 9.63 and 15 um with the ISOCAM instrument on board the ISO satellite. We find total mid-IR luminosities in the range 3-48x10^8 L_sun.
Barvainis   +30 more
core   +2 more sources

Group-IV midinfrared plasmonics [PDF]

open access: yes, 2015
The use of heavily doped semiconductors to achieve plasma frequencies in the mid-IR has been recently proposed as a promising way to obtain high-quality and tunable plasmonic materials. We introduce a plasmonic platform based on epitaxial n-type Ge grown
Baldassarre, Leonetta   +11 more
core   +4 more sources

PHANGS–JWST First Results: Mid-infrared Emission Traces Both Gas Column Density and Heating at 100 pc Scales

open access: yesThe Astrophysical Journal Letters, 2023
We compare mid-infrared (mid-IR), extinction-corrected H α , and CO (2–1) emission at 70–160 pc resolution in the first four PHANGS–JWST targets. We report correlation strengths, intensity ratios, and power-law fits relating emission in JWST’s F770W ...
Adam K. Leroy   +50 more
doaj   +1 more source

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