Results 31 to 40 of about 2,090,001 (315)

A two-dimensional mid-infrared optoelectronic retina enabling simultaneous perception and encoding

open access: yesNature Communications, 2023
Infrared machine vision system for object perception and recognition is becoming increasingly important in the Internet of Things era. However, the current system suffers from bulkiness and inefficiency as compared to the human retina with the ...
Fakun Wang   +20 more
semanticscholar   +1 more source

Detecting mid-infrared light by molecular frequency upconversion in dual-wavelength nanoantennas [PDF]

open access: yesScience, 2021
Description Optomechanical upconversion Molecules have rich signatures in their spectra at infrared wavelengths and are typically accessed with dedicated spectroscopic instrumentation. Chen et al. and Xomalis et al.
Angelos Xomalis   +8 more
semanticscholar   +1 more source

High-operating-temperature mid-infrared photodetectors via quantum dot gradient homojunction

open access: yesLight: Science & Applications, 2023
Due to thermal carriers generated by a narrow mid-infrared energy gap, cooling is always necessary to achieve ideal photodetection. In quantum dot (QD), the electron thermal generation should be reduced with quantum confinement in all three dimensions ...
Xiaomeng Xue   +5 more
semanticscholar   +1 more source

Fluorescence-Detected Mid-Infrared Photothermal Microscopy. [PDF]

open access: yesJournal of the American Chemical Society, 2021
We demonstrate instrumentation and methods to enable fluorescence-detected photothermal infrared (F-PTIR) microscopy and then demonstrate the utility of F-PTIR to characterize the composition within phase-separated domains of model amorphous solid ...
Minghe Li   +9 more
semanticscholar   +2 more sources

Polychromatic full-polarization control in mid-infrared light

open access: yesLight: Science & Applications, 2023
Dispersive eigen-polarization engineering enabled polychromatic full-polarization control in mid-infrared. Objects with different shapes, materials and temperatures can emit distinct polarizations and spectral information in mid-infrared band, which ...
Jin Chen   +13 more
semanticscholar   +1 more source

Photon-trapping-enhanced avalanche photodiodes for mid-infrared applications

open access: yesNature Photonics, 2023
The fast development of mid-wave infrared photonics has increased the demand for high-performance photodetectors that operate in this spectral range.
Dekang Chen   +12 more
semanticscholar   +1 more source

Milliwatt-Level Spontaneous Emission Across the 3.5–8 µm Spectral Region from Pr3+ Doped Selenide Chalcogenide Fiber Pumped with a Laser Diode

open access: yesApplied Sciences, 2020
A spontaneous emission fiber source operating in the mid-infrared (MIR) wavelength range from 3.5 to 8 µm is demonstrated for the first time at output power levels of at least 1 mW.
Lukasz Sojka   +9 more
doaj   +1 more source

High-capacity free-space optical communications using wavelength- and mode-division-multiplexing in the mid-infrared region

open access: yesNature Communications, 2022
Due to its absorption properties in atmosphere, the mid-infrared (mid-IR) region has gained interest for its potential to provide high data capacity in free-space optical (FSO) communications.
K. Zou   +16 more
semanticscholar   +1 more source

Mid‐infrared dual‐comb polarimetry of anisotropic samples

open access: yesNatural Sciences, 2023
The mid‐infrared (mid‐IR) anisotropic optical response of a material probes vibrational fingerprints and absorption bands sensitive to order, structure, and direction‐dependent stimuli.
Karsten Hinrichs   +6 more
doaj   +1 more source

On-chip mid-infrared photothermoelectric detectors for full-Stokes detection

open access: yesNature Communications, 2022
On-chip polarimeters are highly desirable for the next-generation ultra-compact optical and optoelectronic systems. Polarization-sensitive photodetectors relying on anisotropic absorption of natural/artificial materials have emerged as a promising ...
Mingjin Dai   +7 more
semanticscholar   +1 more source

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