“Quantum Cascade Laser” Science-Research, December 2021 — summary from Astrophysics Data System and NASA Technology Transfer Program

Astrophysics Data System — summary generated by Brevi Assistant

The warmth dissipation of a quantum cascade laser for a mounted structure with and without a ruby submount was assessed by temperature level and framework function measurements and three-dimensional simulation. From the framework function, it was revealed that the thermal resistance in between the QCL on the InP substratum and the CuW place was minimized from 5. 0 K W -1 without the submount to 2. 5 K W -1 with the ruby submount. The quantum cascade laser has evolved to be a portable, effective resource of systematic mid-infrared light; nonetheless, its rapid gain dynamics highly limits the development of ultrashort pulses. Durable quantum cascade laser withstanding high temperature continuous-wave operation is of important value for some applications. High interface high quality structures developed for light emissions at 8. 5 μm is accomplished by maximizing and accurate controlling of development conditions. Monitoring of \ chemHONO concentration change in the ambience can improve our understanding of atmospheric chemistry information and its effects on the local air quality and global climate [1] The effective line strengths were figured out by scaling the measured \ chemHONO absorption intensities to the line staminas of 2 formerly reported HONO lines located in the exact same spooky area near 1659. 85 \ wn [2] Demonstration of substrate-emitting quantum cascade lasers with a dispersed Bragg reflector made use of for wavelength selection and a second-order outcoupler spectrally detuned from the reflector is reported. A tool with a high-reflection layered back facet and anti-reflection covered front aspect and substrate side supplied a peak power of 0. 6 W from the substrate into a single-lobed beam of light with ∼ 1 ° × 18 ° angular complete width at fifty percent optimum. Dual-comb spectroscopy with quantum cascade lasers offers straight accessibility to the mid-infrared region and, hence, to the particular and strong ro-vibrational absorption bands of many molecules of interest. In DCS, 2 frequency comb lasers with unequal repetition regularity produce a variety of beat notes which lug the details concerning size and phase of the optical regularity parts that generate them.

Please keep in mind that the text is machine-generated by the Brevi Technologies’ Natural language Generation model, and we do not bear any responsibility. The text above has not been edited and/or modified in any way.

Source texts:

• https://ui.adsabs.harvard.edu/abs/2021JaJAP.60l4003T/abstract — Evaluation of heat dissipation characteristics of quantum cascade laser with diamond submount using structure function and three-dimensional thermal fluid simulation.
• https://ui.adsabs.harvard.edu/abs/2021NaPho.15.919T/abstract — Femtosecond pulses from a mid-infrared quantum cascade laser.
• https://ui.adsabs.harvard.edu/abs/2021JSemi.42k2301F/abstract — High power λ 8. 5 μm quantum cascade laser grown by MOCVD operating continuous-wave up to 408 K.
• https://ui.adsabs.harvard.edu/abs/2021isms.confETF10N/abstract — Measurements of New Line Positions and Effective Line Intensities of Cis-Hono of the nub{2} Band around 1660 wn Using Quantum Cascade Laser Absorption Spectroscopy.
• https://ui.adsabs.harvard.edu/abs/2021AIPA.11k5221C/abstract — Substrate-emitting quantum cascade lasers with a distributed Bragg reflector and a spectrally detuned second-order outcoupler.
• https://ui.adsabs.harvard.edu/abs/2021isms.confETB07G/abstract — Towards Real-Time Processing of Dual-Comb Spectroscopy Data with Quantum Cascade Lasers.

NASA Technology Transfer Program — summary generated by Brevi Assistant

There is a requirement for a single-frequency, single-mode, highly-stable laser. Typical Q-switch lasers based on several optical elements have many optical coatings within the laser cavity. NASA Goddard Space Flight Center has created a new magnetic shielding style that includes simpleness, convenience of use, scalability, reproducibility, and long life. The development allows new noticing layouts- for instance, it is currently possible to use electromagnetic field producing components with electromagnetic field delicate components, with bigger magnetic area energies and in closer proximity than was formerly possible. NASA’s Glenn Research Center has established a technique of using entangled-photon sets to produce extremely secure mobile interactions that call for simple milliwatts of power. Traditional gas Argon-ion laser resources are as well big, pricey, and power-intensive to use in portable applications. The high water-to-biomass ratio quality of conventional algae cultivation systems needs big energy inputs for blending the culture and pumping during growing, as well as for dewatering and collecting the resultant biomass. Pioneers at NASA’s Glenn Research Center have established a cutting-edge tunable, multi-frequency controller for a terahertz quantum cascade laser resource. Previous methods to tuning the emission from a THz QCL resource have been unsatisfactory, whether due to the fact that of a limited varieties of tuning channels, high expense, high complexity, or frequency instability. The V-Assembly Dual Head Efficiency Resonator Laser Transmitter infuses a number of new element technologies, such as ceramic: YAG material and high-power laser diode ranges, integrated with a proprietary very little component count design, leading to dramatic performance gains in laser transmitter technology.

Please keep in mind that the text is machine-generated by the Brevi Technologies’ Natural language Generation model, and we do not bear any responsibility. The text above has not been edited and/or modified in any way.

Source texts:

• https://technology.nasa.gov/patent/GSC-TOPS-254 — Coating-Less Non-Planar Ring Oscillator Laser.
• https://technology.nasa.gov/patent/GSC-TOPS-169 — Magnetic Shield Using Proximity Coupled Spatially Varying Superconducting Order Parameters.
• https://technology.nasa.gov/patent/LEW-TOPS-108 — Secure Optical Quantum Communications.
• https://technology.nasa.gov/patent/TOP2-148 — Surface Attached BioReactor (SABR) for Microbial Cell Cultivation.
• https://technology.nasa.gov/patent/LEW-TOPS-86 — Terahertz Quantum Cascade Laser Source.
• https://technology.nasa.gov/patent/GSC-TOPS-44 — V-Assembly Dual Head Efficiency Resonator (VADER) Laser Transmitter.

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