Search Results - "Cockburn, John W."
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1
Artefacts in geometric phase analysis of compound materials
Published in Ultramicroscopy (01-10-2015)“…The geometric phase analysis (GPA) algorithm is known as a robust and straightforward technique that can be used to measure lattice strains in high resolution…”
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Journal Article -
2
Characterization of Quantum-Cascade Lasers Using Single-Pass Transmission Spectroscopy
Published in IEEE journal of quantum electronics (01-06-2009)“…The study of the electron distribution and intersubband transitions in quantum cascade (QC) lasers provides fundamental insights into the laser operation…”
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Journal Article -
3
Sensitivity Advantage of QCL Tunable-Laser Mid-Infrared Spectroscopy Over FTIR Spectroscopy
Published in Applied spectroscopy reviews (26-11-2015)“…Interest in mid-infrared spectroscopy instrumentation beyond classical FTIR using a thermal light source has increased dramatically in recent years…”
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4
Mid-infrared optical coherence tomography
Published in Review of scientific instruments (01-12-2007)“…A time domain optical coherence tomography (OCT) system is described that uses mid-infrared light (6-8 microm). To the best of our knowledge, this is the first…”
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Journal Article -
5
Spectroscopic study of transparency current in mid-infrared quantum cascade lasers
Published in Optics express (13-08-2012)“…We report measurements which give direct insight into the origins of the transparency current for λ ~5 µm In0.6Ga0.4As/In0.42Al0.58As quantum cascade lasers in…”
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Journal Article -
6
High k -space lasing in a dual-wavelength quantum cascade laser
Published in Nature photonics (01-01-2009)“…The understanding of charge carrier distributions is fundamental to our knowledge of laser systems. In semiconductor lasers, because of the propensity of…”
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Journal Article -
7
InP-Based Midinfrared Quantum Cascade Lasers for Wavelengths Below 4 μm
Published in IEEE journal of selected topics in quantum electronics (01-09-2011)“…We review the recent development of high-performance short-wavelength (λ ~ 3.05-3.8 μm) strain-compensated InGaAs/AlAs(Sb)/InP quantum cascade lasers (QCLs)…”
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8
Quantum Cascade Laser With Unilateral Grating
Published in IEEE photonics technology letters (01-12-2012)“…We report on distributed feedback quantum cascade lasers at a wavelength of 3.58 μm operating at room temperature. Single-mode emission with a side-mode…”
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9
Evidence for nonadiabatic electron-phonon intraband scattering in self-assembled quantum dots
Published in Physical review. B, Condensed matter and materials physics (01-04-2008)Get full text
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10
Ultrafast probing of light-matter interaction in a midinfrared quantum cascade laser
Published in Applied physics letters (01-09-2008)“…In this work, we study the interaction of ultrashort midinfrared pulses with the active medium of an In Ga As ∕ In Al As ∕ In P quantum cascade laser emitting…”
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InP-Based Midinfrared Quantum Cascade Lasers for Wavelengths Below 4 [mu]m
Published in IEEE journal of selected topics in quantum electronics (01-09-2011)“…We review the recent development of high-perfor- mance short-wavelength (λ ∼ 3.05-3.8 μm) strain-compensated InGaAs/AlAs(Sb)/InP quantum cascade lasers (QCLs)…”
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12
High-Peak-Power Room-Temperature \lambda\sim 3.6\ \mum InGaAs-AlAs(Sb) Quantum Cascade Lasers
Published in IEEE photonics technology letters (01-06-2010)“…We report the development of high-peak-power λ ~ 3.6 μm strain-compensated In 0.7 Ga 0.3 As-AlAs(Sb) quantum cascade lasers (QCLs). The QCLs operate up to at…”
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Journal Article -
13
High-Peak-Power Room-Temperature [Formula Omitted]m InGaAs-AlAs(Sb) Quantum Cascade Lasers
Published in IEEE photonics technology letters (01-06-2010)“…We report the development of high-peak-power [Formula Omitted] strain-compensated [Formula Omitted] quantum cascade lasers (QCLs). The QCLs operate up to at…”
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14
High-Peak-Power Room-Temperature $\lambda\sim 3.6\ \mu$m InGaAs–AlAs(Sb) Quantum Cascade Lasers
Published in IEEE photonics technology letters (01-06-2010)Get full text
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15
External cavity quantum cascade laser based on Fabry-Pérot reflector
Published in 2015 Conference on Lasers and Electro-Optics (CLEO) (01-05-2015)“…An external cavity quantum cascade laser based on Fabry-Pérot etalon design is demonstrated for the first time. The Fabry-Pérot reflector was adjusted to…”
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Conference Proceeding -
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Room-Temperature GaAs/AlGaAs Quantum Cascade Lasers Grown by Metal-Organic Vapor Phase Epitaxy
Published in IEEE photonics technology letters (15-06-2011)“…We demonstrate λ ~ 9 μm GaAs/Al 0.45 Ga 0.55 As quantum cascade lasers (QCLs) operating up to 320 K. Metal- organic vapor phase epitaxy has been used…”
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17
lambda \sim {3.35}\ \mu$m Distributed-Feedback Quantum-Cascade Lasers With High-Aspect-Ratio Lateral Grating
Published in IEEE photonics technology letters (01-04-2011)Get full text
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18
Room-Temperature Operation of Discrete-Mode InGaAs-AlAsSb Quantum-Cascade Laser With Emission at lambda = 3.3 Unknown character mu m
Published in IEEE photonics technology letters (01-09-2010)“…Discrete-mode quantum-cascade lasers have been developed in the InGaAs-AlAsSb-InP materials system. For an uncoated 10- mu m-wide ridge waveguide and 3000- mu…”
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Room-Temperature Operation of Discrete-Mode InGaAs-AlAsSb Quantum-Cascade Laser With Emission at [Formula Omitted]m
Published in IEEE photonics technology letters (01-09-2010)“…Discrete-mode quantum-cascade lasers have been developed in the InGaAs-AlAsSb-InP materials system. For an uncoated 10-[Formula Omitted]m-wide ridge waveguide…”
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Journal Article -
20
Room-Temperature Operation of Discrete-Mode InGaAs–AlAsSb Quantum-Cascade Laser With Emission at $\lambda=3.3\ \mu$m
Published in IEEE photonics technology letters (01-09-2010)Get full text
Journal Article