Search Results - "Jetter, M."
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Coherence and indistinguishability of highly pure single photons from non-resonantly and resonantly excited telecom C-band quantum dots
Published in Applied physics letters (08-07-2019)“…The role of resonant pumping schemes in improving the photon coherence is investigated on InAs/InGaAs/GaAs quantum dots (QDs) emitting in the telecom C-band…”
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Nonlinear reflectivity of AlGaInP SESAMs for mode locking in the red spectral range
Published in Optics express (06-06-2022)“…Mode-locked vertical external-cavity semiconductor lasers (VECSELs) are a wavelength-versatile laser that relies on a semiconductor saturable absorber mirror…”
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3
The Availability and Cost of Healthier Food Alternatives
Published in American journal of preventive medicine (2006)“…Many people, especially low-income consumers, do not successfully follow dietary recommendations to eat more whole grains and less fat and added sugar. The…”
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Resonance fluorescence of single In(Ga)As quantum dots emitting in the telecom C-band
Published in Applied physics letters (14-06-2021)“…An emission wavelength around 1550 nm (telecom C-band) is highly appealing for nonclassical light sources, among others, due to the absorption minimum in…”
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Cascaded single-photon emission from the Mollow triplet sidebands of a quantum dot
Published in Nature photonics (01-04-2012)“…Emission from a resonantly excited quantum emitter is a fascinating research topic within the field of quantum optics and is a useful source for different…”
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On-chip beamsplitter operation on single photons from quasi-resonantly excited quantum dots embedded in GaAs rib waveguides
Published in Applied physics letters (13-07-2015)“…We present an on-chip beamsplitter operating on a single-photon level by means of a quasi-resonantly driven InGaAs/GaAs quantum dot. The single photons are…”
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Self-mode-locked AlGaInP-VECSEL
Published in Applied physics letters (30-10-2017)“…We report the mode-locked operation of an AlGaInP-based semiconductor disk laser without a saturable absorber. The active region containing 20 GaInP quantum…”
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Mode-locked red-emitting semiconductor disk laser with sub-250 fs pulses
Published in Applied physics letters (09-12-2013)“…We report on passive mode locking of a semiconductor disk laser emitting pulses shorter than 250 fs at 664 nm with a repetition frequency of 836 MHz. A fast…”
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Electrically driven quantum dot single-photon source at 2 GHz excitation repetition rate with ultra-low emission time jitter
Published in Applied physics letters (07-01-2013)“…The influence of the bias voltage on emission properties of a red emitting InP/GaInP quantum dot based single-photon source was investigated. Under pulsed…”
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Postselected indistinguishable single-photon emission from the Mollow triplet sidebands of a resonantly excited quantum dot
Published in Physical review. B, Condensed matter and materials physics (10-06-2013)“…Applying high-power continuous-wave resonant s-shell excitation to a single self-assembled InGaAs quantum dot, we demonstrate the generation of postselected…”
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Tuning emission energy and fine structure splitting in quantum dots emitting in the telecom O-band
Published in AIP advances (01-08-2019)“…We report on optical investigations of MOVPE-grown InGaAs/GaAs quantum dots emitting at the telecom O-band that were integrated onto uniaxial piezoelectric…”
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Wavelength and Pump-Power Dependent Nonlinear Refraction and Absorption in a Semiconductor Disk Laser
Published in IEEE photonics technology letters (15-01-2020)“…We characterize both nonlinear refraction and absorption in a vertical-external-cavity surface-emitting laser (VECSEL) as a function of pump irradiance over…”
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All quantum dot mode-locked semiconductor disk laser emitting at 655 nm
Published in Applied physics letters (25-08-2014)“…We present a semiconductor disk laser mode-locked by a semiconductor saturable absorber mirror (SESAM) with emission in the red spectral range. Both the gain…”
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Enhanced efficiency of AlGaInP disk laser by in-well pumping
Published in Optics express (09-02-2015)“…The performance of a 665-nm GaInP disk laser operated continuous-wave at 15°C both in-well-pumped at 640 nm and barrier pumped at 532 nm is reported. The…”
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Influence of the dark exciton state on the optical and quantum optical properties of single quantum dots
Published in Physical review letters (03-10-2008)“…The dark exciton state strongly affects the optical and quantum optical properties of flat InP/GaInP quantum dots. The exciton intensity drops sharply compared…”
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For California perennial crops facing climate change, water use stays stable while planting density increases
Published in California agriculture (Berkeley, Calif.) (04-11-2024)“…With climate change, there has been increasing concern over allocations of scarce water supplies in California during times of drought. This study looks at how…”
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Three-dimensional GaN for semipolar light emitters
Published in Physica Status Solidi (b) (01-03-2011)“…Selective‐area epitaxy is used to form three‐dimensional (3D) GaN structures providing semipolar crystal facets. On full 2‐in. sapphire wafers we demonstrate…”
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Wavelength tunable ultraviolet laser emission via intra-cavity frequency doubling of an AlGaInP vertical external-cavity surface-emitting laser down to 328 nm
Published in Applied physics letters (26-12-2011)“…We demonstrate an optically pumped vertical external-cavity surface-emitting laser in a compact v-shaped cavity configuration for frequency doubling to the…”
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Electrically pumped single-photon emission in the visible spectral range up to 80 K
Published in Optics express (18-08-2008)“…We present an electrically pumped single-photon emitter in the visible spectral range, working up to 80 K, realized using a self-assembled single InP quantum…”
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