Results 11 to 20 of about 3,062,797 (334)
Mid-infrared hyperchaos of interband cascade lasers
Light: 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
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Electrically Pumped Mid‐Infrared Random Lasers
Advanced Materials, 2013 Electrically pumped random lasers, operating in the mid-infrared regime at λ ≈ 10 μm, are realized for the first time. Randomly distributed air holes are patterned onto a quantum cascade wafer emitting in the transverse-magnetic (TM) polarization. The advantage of employing TM polarized gain medium is that TM modes are more effectively confined in the ...
Liang, Hou Kun +6 more
openaire +5 more sources
Low-intensity red and infrared laser effects at high fluences on Escherichia coli cultures [PDF]
Brazilian Journal of Medical and Biological Research, 2015 Semiconductor laser devices are readily available and practical radiation sources providing wavelength tenability and high monochromaticity. Low-intensity red and near-infrared lasers are considered safe for use in clinical applications. However, adverse
L.L. Barboza +4 more
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Dysprosium Mid‐Infrared Lasers: Current Status and Future Prospects [PDF]
Laser & Photonics reviews, 2020 With growing interest in the mid‐infrared spectral region, dysprosium has recently been revisited for efficient high‐performance infrared source development. Despite historically receiving less attention than other rare earth ions, in recent years lasers
M. Majewski, R. Woodward, S. Jackson
semanticscholar +1 more source
IEEE Photonics Journal, 2021 We present a difference frequency generator (DFG) based on a 2-mm-long MgO-doped aperiodically-poled lithium-niobate (APPLN) crystal with a linearly-varying poling-period.
Xi Feng +6 more
doaj +1 more source
Recent developments in lanthanide-doped mid-infrared fluoride fiber lasers [Invited].
Optics Express, 2022 Mid-infrared fiber sources, emitting between 2.5 µm and 5.0 µm, are interesting for their great potential in several application fields such as material processing, biomedicine, remote sensing and infrared countermeasures due to their high-power, their ...
Frédéric Jobin +13 more
semanticscholar +1 more source
GeSnOI mid-infrared laser technology [PDF]
Light: Science & Applications, 2021 AbstractGeSn alloys are promising materials for CMOS-compatible mid-infrared lasers manufacturing. Indeed, Sn alloying and tensile strain can transform them into direct bandgap semiconductors. This growing laser technology however suffers from a number of limitations, such as poor optical confinement, lack of strain, thermal, and defects management ...
Wang, Binbin +16 more
openaire +4 more sources
Design of a new family of narrow-linewidth mid-infrared lasers [PDF]
, 2017 We describe the design of a new family of high-spectral-brightness narrow-linewidth mid-infrared lasers—of
Behsan Behzadi +2 more
semanticscholar +1 more source
Multispectral camouflage for infrared, visible, lasers and microwave with radiative cooling
Nature Communications, 2020 Interminable surveillance and reconnaissance through various sophisticated multispectral detectors present threats to military equipment and manpower.
Huanzheng Zhu +8 more
semanticscholar +1 more source
InAs-Based Quantum Cascade Lasers with Extremely Low Threshold
Photonics, 2022 We report InAs-based quantum cascade lasers (QCLs) operating near 14 µm with a threshold current density Jth as low as 0.6 kA/cm2 at room temperature. The threshold obtained is lower than the Jth of the best reported InP-based QCLs to date without facet ...
Kumar Kinjalk +5 more
doaj +1 more source