Davide Pinto
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View article: Absorption and Dispersion: In Search of a Versatile Spectroscopic Technique
Absorption and Dispersion: In Search of a Versatile Spectroscopic Technique Open
This paper investigates three spectroscopic techniques - Tunable Diode Laser Absorption Spectroscopy (TDLAS), Wavelength Modulation Spectroscopy (WMS), and Heterodyne Phase Sensitive Dispersion Spectroscopy (HPSDS) - to evaluate their perf…
View article: Highly selective and sensitive detection of volatile organic compounds using long wavelength InAs-based quantum cascade lasers through quartz-enhanced photoacoustic spectroscopy
Highly selective and sensitive detection of volatile organic compounds using long wavelength InAs-based quantum cascade lasers through quartz-enhanced photoacoustic spectroscopy Open
The precise detection of volatile organic compounds plays a pivotal role in addressing environmental concerns, industrial safety, and medical diagnostics. The accurate identification and quantification of these compounds because of their u…
View article: Long wavelength distributed feedback tapered quantum cascade lasers
Long wavelength distributed feedback tapered quantum cascade lasers Open
We present a study on distributed feedback tapered quantum cascade lasers emitting at 14 µm. The fabricated lasers with taper angles between 0° and 3° exhibited output powers scaling in accordance with the active zone volume increase. Redu…
View article: Balanced-detection interferometric cavity-assisted photothermal spectroscopy via collimating fiber-array integration
Balanced-detection interferometric cavity-assisted photothermal spectroscopy via collimating fiber-array integration Open
This work reports on the implementation of a fiber-array with attached microlenses in the balanced-detection Interferometric Cavity-Assisted Photothermal Spectroscopy (ICAPS) scheme, enabling a highly compact probe laser beam path. The sam…
View article: Wavelength modulated diode probe laser for an interferometric cavity-assisted photothermal spectroscopy gas sensor
Wavelength modulated diode probe laser for an interferometric cavity-assisted photothermal spectroscopy gas sensor Open
We report on key developments made in advancing Interferometric Cavity-Assisted Photothermal Spectroscopy (ICAPS) toward a method for rugged and cost-effective gas sensing. In ICAPS, a Fabry Perot Interferometer (FPI) is employed to transd…
View article: Dual-Beam Photothermal Spectroscopy Employing a Mach–Zehnder Interferometer and an External Cavity Quantum Cascade Laser for Detection of Water Traces in Organic Solvents
Dual-Beam Photothermal Spectroscopy Employing a Mach–Zehnder Interferometer and an External Cavity Quantum Cascade Laser for Detection of Water Traces in Organic Solvents Open
We report on a mid-infrared (mid-IR) photothermal spectrometer for liquid-phase samples for the detection of water in organic solvents, such as ethanol or chloroform, and in complex mixtures, such as jet fuel. The spectrometer is based on …