Search Results - "KOETH, J"

Detectivity enhancement by double radiation pass in interband cascade infrared photodetectors by Bader, A., Rothmayr, F., Khan, N., Koeth, J., Hartmann, F., Höfling, S.

“…The detectivity enhancement in a double-pass architecture in an interband cascade infrared photodetector (ICIP) is investigated. The ICIP consists of twelve…”
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Interband cascade infrared photodetectors based on Ga-free InAs/InAsSb superlattice absorbers by Bader, A., Rothmayr, F., Khan, N., Jabeen, F., Koeth, J., Höfling, S., Hartmann, F.

“…We present an interband cascade infrared photodetector based on Ga-free type-II superlattice absorbers. Substituting the more standard InAs/GaSb superlattice…”
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Mid-infrared GaSb-based resonant tunneling diode photodetectors for gas sensing applications by Rothmayr, F., Pfenning, A., Kistner, C., Koeth, J., Knebl, G., Schade, A., Krueger, S., Worschech, L., Hartmann, F., Höfling, S.

“…We present resonant tunneling diode-photodetectors (RTD-PDs) with GaAs0.15Sb0.85/AlAs0.1Sb0.9 double barrier structures combined with an additional quaternary…”
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Picosecond pulses from a monolithic GaSb-based passive mode-locked laser by Becker, S., Scheuermann, J., Weih, R., Rößner, K., Kistner, C., Koeth, J., Hillbrand, J., Schwarz, B., Kamp, M.

“…We present passive mode locking of a GaSb-based monolithic diode laser emitting at 2.2 μm with a fundamental repetition rate around 9.57 GHz. A pulse width of…”
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High-speed interband cascade infrared photodetectors: photo-response saturation by a femtosecond oscillator by Krüger, L M, Hillbrand, J, Heidrich, J, Beiser, M, Weih, R, Koeth, J, Phillips, C R, Schwarz, B, Strasser, G, Keller, U

“…Interband cascade infrared photodetectors (ICIPs) combine interband optical transitions with fast intraband transport to achieve high-frequency and…”
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Monolithic single mode interband cascade lasers with wide wavelength tunability by von Edlinger, M., Weih, R., Scheuermann, J., Nähle, L., Fischer, M., Koeth, J., Kamp, M., Höfling, S.

“…Monolithic two-section interband cascade lasers offering a wide wavelength tunability in the wavelength range around 3.7 μm are presented. Stable single mode…”
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Demonstration of the self-mixing effect in interband cascade lasers by Bertling, K., Lim, Y. L., Taimre, T., Indjin, D., Dean, P., Weih, R., Höfling, S., Kamp, M., von Edlinger, M., Koeth, J., Rakić, A. D.

“…In this Letter, we demonstrate the self-mixing effect in an interband cascade laser. We show that a viable self-mixing signal can be acquired through the…”
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A Biochemical Sensor Based on a Sensing Waveguide With Efficient Analyte Overlap and a Single-Mode DFB Laser by Zimmermann, C., Heger, A., Bisping, D., Fischer, M., Zeller, W., Koeth, J., Kamp, M., Hofling, S.

“…A biochemical sensor based on the combination of a complex coupled distributed feedback laser with a sensing waveguide is presented. The sensing waveguide was…”
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GaInNAs-Based High-Power and Tapered Laser Diodes for Pumping Applications by Bisping, D., Pucicki, D., Fischer, M., Koeth, J., Zimmermann, C., Weinmann, P., Hofling, S., Kamp, M., Forchel, A.

“…GaInNAs-based high-power laser diodes with emission in the 1220-1240 nm wavelength range are presented. Broad-area (BA) devices show very low internal losses…”
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DFB laser diodes in the wavelength range from 760 nm to 2.5 μm by Seufert, J., Fischer, M., Legge, M., Koeth, J., Werner, R., Kamp, M., Forchel, A.

“…We present a novel device technology to produce DFB laser diodes which are suitable for tunable diode laser spectroscopy. The new technological approach…”
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Mid infrared interband cascade lasers for sensing applications by Nähle, L., Fuchs, P., Fischer, M., Koeth, J., Bauer, A., Dallner, M., Langer, F., Höfling, S., Forchel, A.

“…The growth of Interband Cascade Laser material to cover the wavelength range from 3–4 μm is presented along with the fabrication and characterization of Broad…”
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High-Temperature High-Power Operation of GaInNAs Laser Diodes in the 1220-1240-nm Wavelength Range by Bisping, D., Pucicki, D., Hofling, S., Habermann, S., Ewert, D., Fischer, M., Koeth, J., Forchel, A.

“…We report on the high-temperature performance of high-power GalnNAs broad area laser diodes with different waveguide designs emitting in the 1220-1240-nm…”
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Novel Helmholtz-based photoacoustic sensor for trace gas detection at ppm level using GaInAsSb/GaAlAsSb DFB lasers by Mattiello, Mario, Niklès, Marc, Schilt, Stéphane, Thévenaz, Luc, Salhi, Abdelmajid, Barat, David, Vicet, Aurore, Rouillard, Yves, Werner, Ralph, Koeth, Johannes

“…A new and compact photoacoustic sensor for trace gas detection in the 2–2.5 μm atmospheric window is reported. Both the development of antimonide-based DFB…”
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Frequency-Dependent Linewidth Enhancement Factor of Quantum-Dot Lasers by Gerhard, S., Schilling, C., Gerschutz, F., Fischer, M., Koeth, J., Krestnikov, I., Kovsh, A., Kamp, M., Hofling, S., Forchel, A.

“…We present detailed measurements of the linewidth enhancement factor (LEF) of a quantum-dot distributed-feedback laser emitting around 1.3 mum above and below…”
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1240nm high-power GaInNAs laser diodes by Bisping, D, Schneider, S, Höfling, S, Habermann, S, Fischer, M, Koeth, J, Forchel, A

“…We have fabricated 1240nm GaInNAs high-power semi-conductor laser diodes. In pulsed operation 1000 mum x 100 mum laser diodes show record low threshold current…”
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Reduction of the threshold current density of GaAs/AlGaAs quantum cascade lasers by optimized injector doping and growth conditions by Höfling, S., Kallweit, R., Seufert, J., Koeth, J., Reithmaier, J.P., Forchel, A.

“…Since the first realization of quantum cascade lasers (QCL) in the GaAs material system in 1998, large progress has been made in the device performance of…”
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Continuous-wave operation of GaInAsSb-GaSb type-II ridge waveguide lasers emitting at 2.8 /spl mu/m by Rossner, K, Hummer, M, Lehnhardt, T, Muller, M, chel, A, Fischer, M, Koeth, J

“…We have realized compressively strained GaInAsSb-GaSb type-II double quantum-well lasers with an emission wavelength of 2.8 mum. Using broad area devices, an…”
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Application of antimonide diode lasers in photoacoustic spectroscopy by Schilt, Stéphane, Vicet, Aurore, Werner, Ralph, Mattiello, Mario, Thévenaz, Luc, Salhi, Abdelmajid, Rouillard, Yves, Koeth, Johannes

“…First investigations of photoacoustic (PA) spectroscopy (PAS) of methane using an antimonide semiconductor laser are reported. The laser fabrication is made in…”
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Room-temperature diode laser photoacoustic spectroscopy near 2.3 μm by CIVIS, S, HORKA, V, ALIBERT, C, WERNER, R, KOETH, J, CIHELKA, J, SIMECEK, T, HULICIUS, E, OSWALD, J, PANGRAC, J, VICET, A, ROUILLARD, Y, SALHI, A

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GaAs field effect transistors fabricated by imprint lithography by Martini, I., Dechow, J., Kamp, M., Forchel, A., Koeth, J.

“…A GaAs metal–semiconductor field-effect transistor (MESFET) has been realized based on mix-and-match fabrication using optical lithography for the ohmic…”
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