Results 61 to 70 of about 157,814 (199)

The COBE DIRBE Point Source Catalog

, 2004
We present the COBE DIRBE Point Source Catalog, an all-sky catalog containing infrared photometry in 10 bands from 1.25 microns to 240 microns for 11,788 of the brightest near and mid-infrared point sources in the sky.
Bedijn P. J., Beverly J. Smith, Bouchet P., Epchtein N., Le Bertre T., Rachel I. Baker, Stephan D. Price, Van der Veen W. E. C. J., Wenger M., Winters J. M., Winters J. M.   +10 more
core   +2 more sources

All-fiber supercontinuum absorption spectroscopy for mid-infrared gas sensing

APL Photonics
The development of compact fiber-based light sources emitting over a wide wavelength range in the mid-infrared and their application to the detection of greenhouse gases and volatile organic compounds still remain of critical interest.
Rémi Bizot, Idris Tiliouine, Frédéric Désévédavy, Grégory Gadret, Clément Strutynski, Esteban Serrano, Pierre Mathey, Bertrand Kibler, Sébastien Février, Frédéric Smektala   +9 more
doaj   +1 more source

Numerical Simulation of Mid-Infrared Optical Frequency Comb Generation in Chalcogenide As₂S₃ Microbubble Resonators

Photonics, 2019
Mid-infrared optical frequency comb generation in whispering gallery mode microresonators attracts significant interest. Chalcogenide glass microresonators are good candidates for operating in the mid-infrared range.
Elena A. Anashkina, Maria P. Marisova, Arseny A. Sorokin, Alexey V. Andrianov   +3 more
doaj   +1 more source

Modulated near-field spectral extraction of broadband mid-infrared signals with a ceramic light source

Optics Express, 2011
In order to obtain broadband near-field infrared (IR) spectra, a Fourier-transform IR spectrometer (FT-IR) and a ceramic light source were used with a scattering-type scanning near-field optical microscope (s-SNOM). To suppress the background (far-field) scattering, the distance between the scattering probe and the sample was modulated with frequency Ω
Michio, Ishikawa, Makoto, Katsura, Satoru, Nakashima, Kento, Aizawa, Tsutomu, Inoue, Hidekazu, Okamura, Yuka, Ikemoto   +6 more
openaire   +2 more sources

Continuous-wave laser emission of 10.4 W, 4.16 μm from HBr-filled hollow-core fiber

High Power Laser Science and Engineering
We report here the characteristics of a high-power continuous-wave mid-infrared (mid-IR) fiber light source based on nested anti-resonant hollow-core fiber (AR-HCF) filled with HBr gas.
Qi Chen, Zhiyue Zhou, Xuanxi Li, Wenxi Pei, Guorui Lv, Luohao Lei, Jing Shi, Tianyu Li, Guangrong Sun, Xin Zhang, Pu Wang, Pengfei Ma, Zefeng Wang   +12 more
doaj   +1 more source

Identification of red supergiants in nearby galaxies with mid-IR photometry

, 2014
The role of episodic mass loss in massive star evolution is one of the most important open questions of current stellar evolution theory. Episodic mass loss produces dust and therefore causes evolved massive stars to be very luminous in the mid-infrared ...
Bonanos, A. Z., Britavskiy, N. E., Garcia-Alvarez, D., Mehner, A., Morrell, N. I., Prieto, J. L.   +5 more
core   +1 more source

Optical Cladding Waveguides in Dielectric Crystals Produced by Femtosecond Laser Inscription

MATEC Web of Conferences, 2013
In this work, the recent progress of our research on optical cladding waveguides in dielectric crystals produced by femtosecond laser inscription has been overviewed.
Chen Feng
doaj   +1 more source

Fabrication technologies for quantum cascade photonic-crystal microlasers [PDF]

, 2004
In this paper we describe the technological and fabrication methods necessary to incorporate both photonic and electronic-band engineering in order to create novel surface-emitting quantum cascade microcavity laser sources.
Capasso, Federico, Cho, A. Y., Colombelli, R., Gmachl, C., Painter, O., Sergent, A. M., Sivco, D. L., Srinivasan, K., Tennant, D. M., Troccoli, M.   +9 more
core  

Broadband mid-infrared coherent light source from fiber-laser-pumped difference frequency generators based on cascaded crystals

Optics Express, 2020
We present difference frequency generators (DFGs) using cascaded PPLN crystals, each with a distinct poling-period, as the parametric gain medium. We show that the phase-matching bandwidth of cascaded crystals is the combination of that of each individual crystal. In the non-phase-matched section of cascaded crystals, there exists periodic backward and
Xi, Feng, Jinqiao, Shi, Pei, Liu, Zhaowei, Zhang   +3 more
openaire   +2 more sources

Wavelength-Dependent Features of Photoelectron Spectra from Nanotip Photoemission

Photonics, 2020
If a metal nanotip is irradiated with the light of a wavelength much larger than the nanotip’s radius of curvature, optical near-fields become excited.
Xiao-Yuan Wu, Hao Liang, Marcelo F. Ciappina, Liang-You Peng   +3 more
doaj   +1 more source