Results 1 to 10 of about 2,090,001 (315)

Coupled surface plasmon–phonon polariton nanocavity arrays for enhanced mid-infrared absorption

open access: yesNanophotonics, 2022
Resonant optical cavities are essential components in mid-infrared applications. However, typical film-type cavities require multilayer stacks with a micron-thick spacer due to mid-infrared wavelengths, and their performance is limited by narrow ...
Kachiraju Satya R.   +6 more
doaj   +1 more source

Mid-infrared dual-comb spectroscopy with an optical parametric oscillator [PDF]

open access: yes, 2013
We present the first implementation of mid-infrared dual-comb spectroscopy with an optical parametric oscillator. Methane absorption spectroscopy was demonstrated with a resolution of 0.2 cm(-1) (5 GHz) at an acquisition time of similar to 10.4 ms over a
Gardiner, Tom   +2 more
core   +1 more source

Mid-Infrared Waveguides: A Perspective [PDF]

open access: yesApplied Spectroscopy, 2016
Significant advancements in waveguide technology in the mid-infrared (MIR) regime during recent decades have assisted in establishing MIR spectroscopic and sensing technologies as a routine tool among nondestructive analytical methods. In this review, the evolution of MIR waveguides along with state-of-the-art technologies facilitating next-generation
Thomas Schädle, Boris Mizaikoff
openaire   +2 more sources

Mid-infrared hyperchaos of interband cascade lasers

open access: yesLight: Science & Applications, 2022
Chaos in nonlinear dynamical systems is featured with irregular appearance and with high sensitivity to initial conditions. Near-infrared light chaos based on semiconductor lasers has been extensively studied and has enabled various applications.
Yu Deng   +7 more
semanticscholar   +1 more source

Air temperature drives the evolution of mid-infrared optical properties of butterfly wings

open access: yesScientific Reports, 2021
This study uncovers a correlation between the mid-infrared emissivity of butterfly wings and the average air temperature of their habitats across the world.
Anirudh Krishna   +3 more
doaj   +1 more source

Novel Deposition Method of Crosslinked Polyethylene Thin Film for Low-Refractive-Index Mid-Infrared Optical Coatings

open access: yesSensors, 2023
Mid-infrared optics require optical coatings composed of high- and low-refractive-index dielectric layers for the design of optical mirrors, filters, and anti-reflection coatings.
Taeyoon Jeon   +5 more
doaj   +1 more source

Mid-Infrared Plasmonic Platform Based on n-Doped Ge-on-Si: Molecular Sensing with Germanium Nano-Antennas on Si [PDF]

open access: yes, 2016
CMOS-compatible, heavily-doped semiconductor films are very promising for applications in mid-infrared plasmonic devices because the real part of their dielectric function is negative and broadly tunable in this wavelength range.
Baldassarre, L.   +14 more
core   +3 more sources

Obscured and unobscured active galactic nuclei in the Spitzer Space Telescope First Look Survey [PDF]

open access: yes, 2004
Selection of active galactic nuclei (AGN) in the infrared allows the discovery of AGN whose optical emission is extinguished by dust. In this paper, we use the Spitzer Space Telescope First Look Survey (FLS) to assess what fraction of AGN with mid ...
A. Sajina   +24 more
core   +3 more sources

High-sensitivity, high-speed, broadband mid-infrared photodetector enabled by a van der Waals heterostructure with a vertical transport channel

open access: yesNature Communications
The realization of room-temperature-operated, high-performance, miniaturized, low-power-consumption and Complementary Metal-Oxide-Semiconductor (CMOS)-compatible mid-infrared photodetectors is highly desirable for next-generation optoelectronic ...
Jianfeng Wu   +18 more
semanticscholar   +1 more source

Double-Peaked Mid-Infrared Generation Based on Intracavity Difference Frequency Generation

open access: yesApplied Sciences, 2022
It was reported that a double-peaked mid-infrared laser was generated based on an intracavity difference frequency generation (DFG). The double-peaked pump source was achieved by suppressing the intensity at the central wavelength of the pump source. The
Kaifeng Wang   +6 more
doaj   +1 more source

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