Zobrazeno 61 - 70
of 339
pro vyhledávání: '"77"'
Autor:
Yasumasa Kasaba, Hiromu Nakagawa, Yuji Matsuura, Atsushi Yamazaki, Ryota Ito, Takashi Katagiri, Yasuhiro Hirahara, Yuji Yokoyama
Publikováno v:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV.
We report on the development of the liquid nitrogen cooled hollow core waveguide (HCW) applicable for guiding midinfrared light from telescopes to the cryogenically cooled instruments with high transmittance. We employed a commercially available HCW,
Publikováno v:
SPIE Proceedings.
Upconversion has been an active area of research for at least two decades, mainly because of its wide ranging applications from infrared quantum counters, visible-emitting phosphors, to upconversion lasers. The upconversion lasers have recently becom
Silicon photomultiplier technologies developed at Fondazione Bruno Kessler (Conference Presentation)
Autor:
Alberto Gola
Publikováno v:
Advanced Photon Counting Techniques XIV.
Since 2005, Fondazione Bruno Kessler (FBK, Trento) has been improving and customizing its SiPM technologies for a wide variety of applications, ranging from medical imaging to big science experiments and industrial applications. Current-generation Ne
Publikováno v:
Optical Interconnects XX.
Silicon (Si) photonics is well-positioned to provide high-speed and low-cost optical interconnects. The extraction of data from cryogenically cooled integrated circuits (ICs) has become of great interest for low-power data readout. Utilizing waveleng
Autor:
Dennis G. Deppe
Publikováno v:
Optical Interconnects XX.
Oxide-free VCSELs can be reduced in cavity dimension to micron size apertures, enabling ultalow bit energy operation based on directly modulated laser operation. The oxide-free VCSEL can be used at room temperature, high temperature or cryogenic temp
Publikováno v:
XIV International Conference on Pulsed Lasers and Laser Applications.
We present a detailed study of the dielectric constant and loss tangent of popular nonlinear optical crystals LBO, β-BBO, and KTP in the range of 0.6-1.5 mm (200-500 GHz) at room and liquid nitrogen (77 K) temperatures. These materials have a strong
Autor:
Andreas Wörl, Frank Rutz, Volker Daumer, Robert Rehm, T. Stadelmann, R. Müller, Jasmin Niemasz
Publikováno v:
International Conference on Space Optics — ICSO 2018.
Type-II superlattices (T2SLs) are currently recognized as the sole material system offering comparable performance to HgCdTe, yet providing higher operability, stability over time, spatial uniformity, scalability to larger formats, producibility and
Autor:
Zoe M. Greener, Kateryna Kuzmenko, Derek C. S. Dumas, Muhammad M. Mirza, Douglas J. Paul, Jaroslaw Kirdoda, Peter Vines, Ross W. Millar, Gerald S. Buller
Publikováno v:
Advanced Photon Counting Techniques XIII.
We present innovative planar geometry Ge-on-Si single-photon avalanche diode (SPAD) detectors. These devices provide picosecond timing resolution for applications operating in the short-wave infrared wavelength region such as quantum communication te
Publikováno v:
High-Power, High-Energy, and High-Intensity Laser Technology IV.
The thin disk (TD) technique has been used in laser oscillators and amplifiers for almost three decades to increase the average power of ultrafast laser systems [1]. Different host materials have been tested mostly with Yb-doping, which resulted in a
Publikováno v:
Solid State Lasers XXVIII: Technology and Devices.
Iron-doped binary and ternary chalcogenide crystals are very promising for tunable solid-state lasers operating over the 3-6 μm spectral range. The most significant results have been reported for iron doped ZnSe crystals with 9.6 W output power in C