Results 11 to 20 of about 42,863 (289)
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
Mid-infrared III–V semiconductor lasers epitaxially grown on Si substrates
Light: Science & Applications, 2022 There is currently much activity toward the integration of mid-infrared semiconductor lasers on Si substrates for developing a variety of smart, compact, sensors based on Si-photonics integrated circuits.
Eric Tournié +8 more
doaj +2 more sources
Efficient dielectric metasurface collimating lenses for mid-infrared quantum cascade lasers [PDF]
Optics Express, 2015 Light emitted from single-mode semiconductor lasers generally has large divergence angles, and high numerical aperture lenses are required for beam collimation.
Arbabi, Amir +4 more
core +4 more sources
Mid-Infrared Quantum Cascade Lasers
Nigerian Journal of Technology, 2012 Quantum cascade lasers (QCL) based on intersubband transitions operating at room temperature in the mid-infrared or `molecular ngerprint' spectral region (3.4{17 m) have been found useful for several applications including environmental sensing, pollution monitoring, and medical applications.
Yu Yao +2 more
exaly +5 more sources
Mid-Infrared Multispectral Gaseous Stimulated Raman Scattering Laser
Applied Sciences, 2021 We demonstrated mid-infrared gaseous stimulated Raman scattering lasers in free space. Mixed gases of hydrogen and deuterium were used as Raman gain media in one Raman cell.
Chencheng Shen +6 more
doaj +1 more source
Application of transition metal dichalcogenides in mid‐infrared fiber laser
Nano Select, 2021 Due to the special working wavelength and superb beam quality, the mid‐infrared fiber laser has a wide application prospect in the fields of biomedicine, military defense, laser manufacturing, atmospheric detection, space communication, etc.
Mengli Liu +4 more
doaj +1 more source
Interband Mid-IR Semiconductor Lasers
IEEE Photonics Journal, 2010 Significant advances in the room-temperature (RT) continuous-wave (CW) output power of both type-I quantum-well (QW) active-layer lasers and interband cascade lasers have been reported within the 3–4- $\mu\hbox{m}$ wavelength region in 2009 ...
L. J. Mawst
doaj +1 more source
GaAs-chip-based mid-infrared supercontinuum generation
Light: Science & Applications, 2023 The mid-infrared spectral region opens up new possibilities for applications such as molecular spectroscopy with high spatial and frequency resolution. For example, the mid-infrared light provided by synchrotron sources has helped for early diagnosis of ...
Geoffroy Granger +15 more
doaj +1 more source
Ultrafast Fiber Laser Emitting at 2.8 µm Based on a SESAM and a Broadband FBG
Photonics, 2023 Ultrafast mid-infrared fiber lasers have been intensely studied in the last decade for the generation of high harmonics, molecular spectroscopy, material processing and remote sensing.
Pascal Paradis +4 more
doaj +1 more source
Thermal analysis of mid-infrared quantum-cascade lasers [PDF]
, 2008 We present a theoretical thermal analysis of mid-infrared quantum-cascade lasers (QCLs) using a two-dimensional anisotropic heat diffusion model. Several InP-based devices are simulated over a range of operating conditions in order to extract temperature-
Evans, C.A. +3 more
core +1 more source