Results 131 to 140 of about 2,295,415 (356)

Measurement of water in rhyolitic glasses; calibration of an infrared spectroscopic technique [PDF]

open access: yes, 1986
A series of natural rhyolitic obsidians were analyzed for their total water contents by a vacuum extraction technique. The grain size of the crushed samples can significantly affect these analyses.
Epstein, Samuel   +2 more
core  

Measurement of infrared optical constants with visible photons

open access: yes, 2018
We demonstrate a new scheme of infrared spectroscopy with visible light sources and detectors. The technique relies on the nonlinear interference of correlated photons, produced via spontaneous parametric down conversion in a nonlinear crystal.
An, Chengwu   +4 more
core   +1 more source

A combined optical/infrared spectral diagnostic analysis of theHH1 jet [PDF]

open access: bronze, 2005
B. Nisini   +6 more
openalex   +1 more source

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

open access: yesAdvanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer   +12 more
wiley   +1 more source

On-Chip Supercontinuum Generation Pumped by Short Wavelength Fiber Lasers

open access: yesPhotonics
Supercontinuum (SC) generation pumped by fiber lasers with short wavelengths below 2.0 μm is important since it can provide a compact light source for various applications.
Peng Chen   +15 more
doaj   +1 more source

Phase Lags in the Optical-Infrared Light Curves of AGB Stars

open access: yes, 2005
To search for phase lags in the optical-infrared light curves of asymptotic giant branch stars, we have compared infrared data from the COBE DIRBE satellite with optical light curves from the AAVSO and other sources. We found 17 examples of phase lags in
Moffett, Amanda J.   +2 more
core   +2 more sources

Electricity Generation From Ambient Water Evaporation in the Absence of Sunlight via PVA‐Based Porous Hydrogels

open access: yesAdvanced Functional Materials, EarlyView.
In this article, a water‐evaporation driven energy harvester is devised that works even in the absence of sunlight. This is achieved by combining PVA hydrogel with thermoelectrics (TEG) to directly capture energy from water evaporation. Under mild conditions (RH 40%, T of 26 °C, and 2.8 m s−1 wind), 1.71 mW (1.02 W m−2) power can be generated, >3 fold ...
Zichen Gong, Ady Suwardi, Jing Cao
wiley   +1 more source

Infrared singularities in Landau gauge Yang-Mills theory

open access: yes, 2010
We present a more detailed picture of the infrared regime of Landau gauge Yang-Mills theory. This is done within a novel framework that allows one to take into account the influence of finite scales within an infrared power counting analysis.
A. Cucchieri   +6 more
core   +1 more source

Infrared divergences in plane wave backgrounds [PDF]

open access: green, 2012
Victor Dinu, T. Heinzl, Anton Ilderton
openalex   +1 more source

Home - About - Disclaimer - Privacy