Results 31 to 40 of about 141,990 (293)

Research development of 2D materials based photodetectors towards mid‐infrared regime

open access: yesNano Select, 2021
High performance mid‐infrared photodetectors play an irreplaceable role in optical communication, security monitoring, biological, and medical imaging and so on. Two‐dimensional (2D) materials have demonstrated great potential for infrared photodetection
Junru An   +7 more
doaj   +1 more source

Confronting Standard Models of Proto--Planetary Disks With New Mid--Infrared Sizes from the Keck Interferometer [PDF]

open access: yes, 2016
We present near and mid-infrared interferometric observations made with the Keck Interferometer Nuller and near-contemporaneous spectro-photometry from the IRTF of 11 well known young stellar objects, several observed for the first time in these spectral
Aarnio, Alicia N.   +13 more
core   +3 more sources

(INVITED) Methods for determining the refractive indices and thermo-optic coefficients of chalcogenide glasses at MIR wavelengths

open access: yesOptical Materials: X, 2019
Chalcogenide glasses have attracted much attention for the realization of photonic components owing to their outstanding optical properties in the mid-infrared (MIR) region. However, relatively few refractive index dispersion data are presently available
Y. Fang   +9 more
doaj   +1 more source

Experimental Investigation of Actively Q-Switched Er3+:ZBLAN Fiber Laser Operating at around 2.8 µm

open access: yesSensors, 2020
A diode-pumped Q-switched Er3+:ZBLAN double-clad, single-transverse mode fiber laser is practically realized. The Q-switched laser characteristics as a function of pump power, repetition rate, and fiber length are experimentally investigated. The results
Lukasz Sojka   +6 more
doaj   +1 more source

Mid-Infrared Compressive Hyperspectral Imaging

open access: yesRemote Sensing, 2021
Hyperspectral imaging (HSI) has been widely investigated within the context of computational imaging due to the high dimensional challenges for direct imaging.
Shuowen Yang   +6 more
doaj   +1 more source

On-chip mid-infrared photothermal spectroscopy using suspended silicon-on-insulator microring resonators [PDF]

open access: yes, 2016
Mid-infrared spectroscopic techniques rely on the specific "fingerprint" absorption lines of molecules in the mid-infrared band to detect the presence and concentration of these molecules.
Baets, Roel   +5 more
core   +3 more sources

Mid-infrared single-photon counting

open access: yesOptics Letters, 2006
We report a procedure to detect mid-infrared single photons at 4.65 um via a two-stage scheme based on Sum Frequency Generation, using a Periodically Poled Lithium Niobate (PPLN) nonlinear crystal and a Silicon Avalanche Photodiode. An experimental investigation shows that, in addition to a high timing resolution, this technique yields a detection ...
Temporao, Guilherme   +6 more
openaire   +5 more sources

Mid-Infrared Energy Deposition Spectroscopy. [PDF]

open access: yesPhys Rev Lett
Based on Newton’s law, the energy deposition is the first derivative of local temperature rise and gives the instantaneous absorption. We demonstrate mid-infrared energy deposition spectroscopy that offers both microsecond-scale speed and sub-micron spatial resolution.
Yin J   +8 more
europepmc   +4 more sources

Mid-Infrared Imaging of the Protostellar Binary L1448N--IRS3(A,B) [PDF]

open access: yes, 2002
Mid-infrared (10-25 \micron) imaging of the protostellar binary system L1448N-IRS3(A,B) is presented. Only one source, IRS3(A), was detected at mid-infrared wavelengths -- all of the mid-infrared emission from IRS3(A,B) emanates from IRS3(A).
Ciardi, David R.   +6 more
core   +2 more sources

Germanium Mid-Infrared Photonic Devices [PDF]

open access: yesJournal of Lightwave Technology, 2017
Germanium based photonic devices can play a significant role in several applications, particularly in the so-called fingerprint wavelength region. Here, we review our recent results on mid-infrared germanium photonic devices that show promising performance in the 2–7.5 μm wavelength range.
Mashanovich, Goran   +15 more
openaire   +3 more sources

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