Zobrazeno 1 - 10
of 31
pro vyhledávání: '"77"'
Autor:
B. Ziętek, Piotr Targowski
Publikováno v:
SPIE Proceedings.
Delayed luminescence spectra of ethanolic solution of RhilO Rh19 Rh6G TmRh RhB and Rh3B at 77 K were investigated. Obtained results indicated that photoionization of the dye molecules being in their triplet states and then recombination of the pair i
Publikováno v:
SPIE Proceedings.
Terahertz Bloch oscillator based on GaAs-GaAlAs superlattice with weak barriers is proposed. Here due to interminiband tunneling current is a rising function of electric field while the tunneling and the Bloch oscillations produce dynamic negative di
Publikováno v:
Physical Concepts and Materials for Novel Optoelectronic Device Applications II.
P- and n-type doping of ZnSe is the key technology to fabricate blue/green laser diodes. ZnCdSe/ZnSe quantum-well stripe-geometry laser diodes have been grown by molecular-beam epitaxy with nitrogen radical doping and chlorine doping techniques. Lasi
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:
Christopher G. Poulton, Caitlin Fisher, C. Martijn de Sterke, Ross C. McPhedran, Lindsay C. Botten
Publikováno v:
SPIE Proceedings.
Butt-coupling of light into a surface plasmon is a simple and compact coupling method with a range of potential uses in photonic circuitry. Although butt-coupling has been successfully implemented in many coupling configurations, the coupling effecti
Publikováno v:
SPIE Proceedings.
We propose and theoretically demonstrate a method for generating an intense isolated attosecond pulse by a few-cycle strong laser pulse. The numerical simulations show that a broadband supercontinuum spectrum can be obtained by the interference of th
Autor:
James Kolodzey, Jay Gupta
Publikováno v:
SPIE Proceedings.
Terahertz emitters are important for fundamental studies in an interesting frequency regime and for applications ranging from medical diagnostics to see-through imaging. A simple approach to THz emission from semiconductors is based on intracenter op
Publikováno v:
SPIE Proceedings.
In this paper we report on a high energy, low repetition rate 2-micron-laser, with high conversion efficiency in terms of output energy per pump power. The laser consists of a Ho3+-doped LiYF4 (YLF) crystal cooled to cryogenic temperatures in an unst