103 citations · 342 across the 10 of their papers we have counts for
10 papers
Multi-line lasing in the broadly tunable ammonia quantum cascade laser pumped molecular laser
Paul Chevalier, Arman Amirzhan, Jeremy Rowlette +5
Gaseous ammonia has previously been demonstrated as a compelling gain medium for a quantum cascade laser pumped molecular laser (QPML), exhibiting good power efficiency but limited…
A quantum cascade laser-pumped molecular laser tunable over 1 THz
Arman Amirzhan, Paul Chevalier, Jeremy Rowlette +5
By introducing methyl fluoride (CHF) as a new gain medium for a quantum cascade laser-pumped molecular laser (QPML), we demonstrate continuous-wave lasing from more than 120 di…
Response to Comment on Widely tunable compact terahertz gas lasers
Paul Chevalier, Arman Amirzhan, Fan Wang +4
We recently demonstrated a widely tunable THz molecular laser and reported mathematical formulas and a table for comparing how various molecules would perform as such lasers (Cheva…
Laser radio transmitter
Marco Piccardo, Michele Tamagnone, Benedikt Schwarz +8
Since the days of Hertz, radio transmitters have evolved from rudimentary circuits emitting around 50 MHz to modern ubiquitous Wi-Fi devices operating at gigahertz radio bands. As…
In-water chemical sensing by fiber-optic evanescent waves spectroscopy using mid-infrared quantum cascade lasers
Paul Chevalier, Marco Piccardo, Guy-Mael de Naurois +3
The ability of detecting harmful chemicals is an important safety requirement for drinking water systems. An apparatus for in-water chemical sensing based on the absorption of evan…
Mid infrared two-photon absorption in a room-temperature extended-wavelength InGaAs photodetector
Marco Piccardo, Noah A. Rubin, Lauren Meadowcroft +4
We investigate the nonlinear optical response of a commercial extended-wavelength InGaAs photodetector. Degenerate two-photon absorption in the mid-infrared range…
Watt-level widely tunable single-mode emission by injection-locking of a multimode Fabry-Perot quantum cascade laser
Paul Chevalier, Marco Piccardo, Sajant Anand +7
Free-running Fabry-Perot lasers normally operate in a single-mode regime until the pumping current is increased beyond the single-mode instability threshold, above which they evolv…
Single-mode instability in standing-wave lasers: The quantum cascade laser as a self-pumped parametric oscillator
Tobias S. Mansuripur, Camille Vernet, Paul Chevalier +13
We report the observation of a clear single-mode instability threshold in continuous-wave Fabry-Perot quantum cascade lasers (QCLs). The instability is characterized by the appeara…
Self-starting harmonic frequency comb generation in a quantum cascade laser
Dmitry Kazakov, Marco Piccardo, Yongrui Wang +7
Optical frequency combs establish a rigid phase-coherent link between microwave and optical domains and are emerging as high-precision tools in an increasing number of applications…
Giant field enhancement by funneling effect into sub-wavelength slit-box resonators
Paul Chevalier, Patrick Bouchon, Riad Haidar +1
Inspired by the acoustic Helmholtz resonator, we propose a slit-box electromagnetic nanoantenna able to concentrate the energy of an incident beam into surfaces a thousand times sm…