Results 151 to 160 of about 157,814 (199)

New Mid-Infrared Light Sources

IEEE Journal of Selected Topics in Quantum Electronics, 2012
We present a novel mid-infrared (mid-IR) source of ultrashort pulses applicable to a wide range of biological, spectroscopic, and strong-field physics investigations. The source produces 67 fs pulses at 3.2 microns, with energy of 3.8 μJ at 100 kHz repetition rate and a pulse-to-pulse RMS stability of 0.7%.
Jens Biegert, Philip K. Bates, Olivier Chalus   +2 more
openaire   +1 more source

Noise suppression in femtosecond mid-infrared light sources

Optics Letters, 2000
An experimental and theoretical study of intrinsic correlations and noise-suppression mechanisms in two-stage femtosecond mid-IR light sources is presented. The setup, based on parametric amplification in BBO and subsequent difference-frequency mixing in AgGaS(2), delivers approximately 100-fs mid-IR pulses with 1-2-muJ energy.
P, Hamm, R A, Kaindl, J, Stenger
openaire   +2 more sources

Swept-source OCT using pulsed mid-infrared light

Label-free Biomedical Imaging and Sensing (LBIS) 2019, 2019
A swept-source optical coherence tomography (OCT) system using mid-infrared light is demonstrated using commercially available light source and photodetectors. The light source is a tunable external cavity quantum cascade laser (QCL) with four laser modules and a wavelength range of 5.4μm – 12.8μm. The laser output is pulsed and has a maximum allowable
Wai Ching Lin, Stephen J. Matcher
openaire   +1 more source

Mid-infrared spectromicroscopy beamline at the Canadian Light Source

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2007
Abstract The Canadian Light Source is commissioning a mid-infrared (mid-IR) beamline to support a user facility for spectromicroscopy in the areas of biological and materials sciences. The bend magnet beamline on port 01B1-1 obtained first light in 2005 and beam transport to the spectrometer in 2006.
Tim May, Thomas Ellis, Ruben Reininger
openaire   +1 more source

Mid-Infrared Light Sources Using Parametric Amplification in Silicon Nanophotonic Wires

Frontiers in Optics 2012/Laser Science XXVIII, 2012
Progress toward realizing silicon-based mid-IR light sources will be reviewed. Using silicon nanophotonic wire parametric amplifiers as compact high-gain elements, synchronously-pumped wavelength-tunable mid-IR optical parametric oscillators and broadband supercontinuum sources have been demonstrated.
Green, William, Kuyken, Bart, Liu, Xiaoping, Osgood, Richard M., Baets, Roel, Roelkens, Gunther   +5 more
openaire   +1 more source

Rapidly-tunable mid-infrared coherent light source with difference frequency generation

2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, 2006
We have demonstrated broadly tunable mid-infrared generation from 5 mum to12 mum by difference frequency generation pumped with an electronically-tuned-Ti:sapphire laser. Rapid- and random-access of wavelength is realized in the mid-infrared region.
null Masaki Yumoto, null Masahumi Yamashita, null Takayo Ogawa, null Norihito Saito, null Satoshi Wada   +4 more
openaire   +1 more source

Mid-infrared light sources at room temperature based on lead chalcogenides

SPIE Proceedings, 2004
We report on the development of epitaxial thin film materials for optical pumped light emitting devices in the wavelength range of 4-5 μm. The active layers are lead selenide (PbSe) thin films grown by molecular-beam epitaxy (MBE) on single crystalline, infrared transparent BaF2 substrates. The electrical properties of the layers were determined by van
Regine Glatthaar, Joachim Nurnus, Uwe Vetter, Dirk Szewczyk, Armin Lambrecht, Fritz Weik, Jens W. Tomm   +6 more
openaire   +1 more source

High-Brilliance Mid-Infrared Femtosecond Light Source for Surface-Enhanced Infrared Spectroscop

CLEO: 2015, 2015
We combine surface-enhanced infrared absorption and a high brilliance optical parametric light source to enable ultra-sensitive and fast Fourier-transform infrared spectroscopy of only 10 000 molecules; inaccessible with conventional thermal light sources or synchrotron radiation.
Frank Neubrech, Tobias Steinle, Andy Steinmann, Xinghui Yin, Harald W. Giessen   +4 more
openaire   +1 more source

Semiconductor light sources for mid–infrared applications: concluding remarks

Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2001
The highlights of the Discussion Meeting on ‘Semiconductor light sources for mid–infrared applications’; are summarized. The performances of different types of source are compared in tabular form.
openaire   +1 more source