It is a well-known fact that photons emitted simultaneously by a single decaying nucleus may be detected as a single photon by a gamma-ray detector. Such cascade summing may result in
Read MoreAbstract. We present a dual-comb spectrometer based on quantum cascade lasers operating at 7.7 μm with a stabilization scheme that enables coherent averaging. We show that by illuminating a low cost
Read MoreMid infra-red absorption spectrometry based on continuous-wave distributed feedback (DFB) quantum cascade laser (QCL) is more and more widely used for trace gas detection and
Read MoreIn this letter we present a novel approach to design spectrometers featuring a cascade of etalons which enables both high spectral contrast and rapid
Read MoreA high-speed mid-infrared spectrometer using a wavelength-swept, pulsed quantum cascade laser (QCL) as the light source is introduced in this study. The QCL uses a
Read MoreThe cascade structure can achieve the spectral resolution comparable to the lens-based ultraviolet Raman spectroscopy system, paving the way for the study of miniaturized ultraviolet
Read MoreDescription: Quantum Cascade Lasers (QCL) are designed for spectroscopy in the MIR spectral range. A schematic description of the gain mechanism is given in
Read MoreSpecac ''s Cascade Pipe-Mounted liquid process flow cell is designed for the optical sampling of industrial process fluids in transmission mode
Read MoreAbstract A general Monte Carlo code for the simulation of energy dispersive X-ray fluorescence (ED-XRF) spectrometers is presented. As a significant extension to existing Monte
Read MoreOver the past few decades, the progress in applications of quantum cascade laser (QCL) spectroscopy has accelerated with breathtaking way since its discovery in 1994. The unique
Read MoreThis thesis research details the development of a quantum cascade laser (QCL) based continuous-wave cavity ringdown spectrometer (cw-CRDS) coupled to an oven supersonic expansion source.
Read MoreAbstract: We present a quantum cascade laser-based absorption spectrometer deploying a compact (145 mL volume) segmented circular multipass cell (SC-MPC) with 6 m optical path length.
Read MoreIn this communication we report the construction of a printed circuit board which mounts directly to the vacuum chamber of a mass spectrometer and produces the RF waveforms needed by
Read MoreDesign of an Optical Path Scanning Control System in a Portable Fourier Transform Spectrometer Based on Adaptive Feedforward–Nonlinear
Read MoreWe develop tunable quantum cascade lasers (QCL) in the mid-infrared range. These semiconductor lasers can be optimized for power or tunability at long
Read MoreA Faraday modulation spectrometer for sensitive and fast detection of nitric oxide at 5.33 μm utilizing a room temperature continuous wave distributed feedback quantum cascade laser and a
Read MoreFourier-transform spectrometer based frequency comb detection is usually quite slow due to opto-mechanical scanning of the spectrometer, and that
Read MoreThe THz hybrid dual-comb spectrometer setup is based on multi-heterodyne down-conversion of a THz QCL-FC and a fully stabilized optically recti ed THz frequency fi comb (OR-FC), generated by means
Read MoreWe report the development of an improved spherical mirror multipass-cell-based interband cascade laser (ICL) spectrometer for ambient formaldehyde (HCHO) detection.
Read MoreThis specialized hydrogen isolation flange enables direct connection to chemical processes and offers the opportunity for inline measurement of hydrogen using laser spectroscopy in the chemical industry.
Read MoreThe development of rapid and accurate biomedical laser spectroscopy systems in the mid-infrared has been enabled by the commercial availability of external-cavity quantum cascade
Read MoreA mid-infrared intracavity laser absorption spectrometer for trace gas sensing is demonstrated. An external-cavity multi-mode quantum cascade laser
Read MoreA new instrument has been constructed that couples a supersonic expansion source to a continuous wave cavity ringdown spectrometer using a Fabry-Perot quantum cascade laser (QCL).
Read MoreIn this tutorial, we introduce the unique properties of QCL frequency combs, such as high optical power, multi-GHz repetition rate, and narrow optical
Read MoreQuantum Cascade Lasers have revolutionized the fields of spectroscopy and sensing, offering precise, tunable, and powerful sources of mid-IR and THz radiation. Their applications span a wide range of
Read More1. Introduction Spectrometers with CCD array detectors are finding increased application in many fluorescence based measurements. The large data acquisition rates that are possible with these
Read MoreThis paper describes an automated, portable, mid-infrared quantum cascade laser spectrometer, for in situ carbon monoxide mixing ratio
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