Search Results - "Callebaut, Hans"

3.4-THz quantum cascade laser based on longitudinal-optical-phonon scattering for depopulation by Williams, Benjamin S., Callebaut, Hans, Kumar, Sushil, Hu, Qing, Reno, John L.

“…We report the development of a quantum cascade laser, at λ=87.2 μm, corresponding to 3.44 THz or 14.2 meV photon energy. The GaAs/Al0.15Ga0.85As laser…”
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Terahertz quantum-cascade laser operating up to 137 K by Williams, Benjamin S., Kumar, Sushil, Callebaut, Hans, Hu, Qing, Reno, John L.

“…We report operation of a terahertz quantum-cascade laser at 3.8 THz (λ≈79 μm) up to a heat-sink temperature of 137 K. A resonant phonon depopulation design was…”
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Importance of electron-impurity scattering for electron transport in terahertz quantum-cascade lasers by Callebaut, Hans, Kumar, Sushil, Williams, Benjamin S., Hu, Qing, Reno, John L.

“…Using an ensemble Monte Carlo simulation, including both electron–electron and electron–phonon scattering as well as electron-impurity scattering, the current…”
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Analysis of transport properties of tetrahertz quantum cascade lasers by Callebaut, Hans, Kumar, Sushil, Williams, Benjamin S., Hu, Qing, Reno, John L.

“…We present a self-consistent modeling of a 3.4-THz intersubband laser device. An ensemble Monte Carlo simulation, including both carrier–carrier and…”
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Terahertz quantum cascade lasers based on resonant phonon scattering for depopulation by Hu, Qing, Williams, Benjamin S., Kumar, Sushil, Callebaut, Hans, Reno, John L.

“…40 K. Using a novel double–sided metal waveguide for mode confinement, which yields a unity mode confinement factor and therefore a low total cavity loss at…”
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Terahertz quantum-cascade laser at λ≈100 μm using metal waveguide for mode confinement by Williams, Benjamin S., Kumar, Sushil, Callebaut, Hans, Hu, Qing, Reno, John L.

“…We report lasing at ∼3.0 THz (λ≈98–102 μm) in a quantum-cascade structure in which mode confinement is provided by a double-sided metal waveguide. The…”
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Magnetotunneling spectroscopy of resonant anticrossing in terahertz intersubband emitters by Williams, Benjamin S., Callebaut, Hans, Hu, Qing, Reno, John L.

“…Intersubband transport and electroluminescence has been investigated in a double-quantum-well structure based on an intrawell (vertical) THz radiative…”
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Terahertz quantum cascade lasers by Qing Hu, Williams, B.S., Kumar, S., Callebaut, H., Reno, J.L.

“…We report our successful development of THz quantum cascade lasers with two unique features. The intersubband gain medium is based on resonant optical phonon…”
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Resonant-phonon terahertz quantum-cascade lasers using metal-metal waveguides by Williams, B.S., Sushil Kumar, Callebaut, H., Kohen, S., Qing Hu, Reno, J.L.

“…We report the development and progress of terahertz quantum cascade lasers (QCLs) that use the resonant-phonon depopulation scheme to obtain population…”
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