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Phonon Quasidiffusion in Cryogenic Dark Matter Search Large Germanium Detectors
Phonon Quasidiffusion Cryogenic Dark Matter Large Germanium Detectors
2011/8/5
Abstract: We present results on quasidiffusion studies in large, 3 inch diameter, 1 inch thick [100] high purity germanium crystals, cooled to 50 mK in the vacuum of a dilution refrigerator, and expos...
High Speed Energy-Efficient Germanium Electro- absorption Modulator Featuring Monolithic Integration with Germanium p-i-n Photodetector
Optical devices Modulators
2015/5/26
We report a novel evanescent-coupled germanium electro-absorption modulator with a small active area of 16 μm 2 OCIS codes: (230.0230) Optical devices; (230.4110) Modulators giving an extinction ratio...
Influence of Mutual Drag of Light and Heavy Holes on conductivity of p-Silicon and p-Germanium
Mutual Drag of Light avy Holes
2010/11/25
Conductivity of p-Si and p-Ge is considered for two band model with due regard for mutual drag of light and heavy holes. It is shown that for small and moderate temperatures this drag sig-nificantly d...
\textsc{MaGe} - a {\sc Geant4}-based Monte Carlo Application Framework for Low-background Germanium Experiments
\textsc{MaGe} - a {\sc Geant4}-based Monte Carlo Application Framework Low-background Germanium Experiments
2011/1/4
We describe a physics simulation software framework, MAGE, that is based on the GEANT4 simulation toolkit. MAGE is used to simulate the response of ultra-low radioactive background radiation detectors...
Low-Temperature Dependences of the Polarization of Terahertz Emission from $n$-Germanium in Heating Electric Fields
Low-Temperature Dependences Polarization of Terahertz Emission Heating Electric Fields
2010/11/19
As was noted in [3], in order to verify the assumption that the behavior of the polarization dependences of the terahertz emission by hot electrons from 𝑛-Ge is determined by the type of carri...
Results from a Low-Energy Analysis of the CDMS II Germanium Data
Results Low-Energy Analysis CDMS II Germanium Data
2011/1/5
We report results from a reanalysis of data from the Cryogenic Dark Matter Search (CDMS II) ex-
periment at the Soudan Underground Laboratory. Data taken between October 2006 and September
2008 usin...
Results from a Low-Energy Analysis of the CDMS II Germanium Data
Results Low-Energy Analysis CDMS II Germanium Data
2010/11/15
A convergence of astrophysical observations indicates that 80% of the matter in the universe is in the form of non-baryonic, non-luminous dark matter [1]. Weakly Interacting Massive Particles (WIMPs)...
New paths were designed for the investigations of the-tin!Imma!sh phase transitions in nanocrystalline Ge under conditions of hydrostatic stress. A second-order transition between the-tin andImmapha...
Results from a Search for Light-Mass Dark Matter with a P-type Point Contact Germanium Detector
Light-Mass Dark Matter P-type Point
2010/3/16
We report on several features present in the energy spectrum from an ultra low-noise germanium detector operated at 2,100 m.w.e. By implementing a new technique able to reject surface events, a number...
Fabrication and characteristics of porous germanium films
germanium porous structured film visible photoluminescence
2010/1/19
Porous germanium films with good adhesion to the substrate were produced by annealing GeO2 ceramic films in H2 atmosphere. The reduction of GeO2 started at the top of a film and resulted in a Ge layer...
Three-Dimensional Silicon-Germanium Nanostructures for CMOS Compatible Light Emitters and Optical Interconnects
Three-Dimensional Silicon-Germanium Nanostructures CMOS Compatible Light Emitters Optical Interconnects
2009/5/19
Three-dimensional SiGe nanostructures grown on Si (SiGe/Si) using molecular beam epitaxy or low-pressure chemical vapor deposition exhibit photoluminescence and electroluminescence in the important sp...
Influence of high pressure annealing on electrical properties of surface layer of neutron irradiated or germanium-doped Czochralski-grown silicon
germanium-doped silicon neutron-irradiated silicon defects
2011/4/27
The effect of annealing at 720–920 K under enhanced pressure (up to 1.1 GPa) in argon ambient on electrical properties of the surface layer of the Czochralski-grown silicon (Cz-Si) subjected to neutro...
Analysis of nonlinear ultraacoustic wave properties in germanium monocrystal
elastic wave second harmonics dynamic deformations
2010/3/11
The present paper investigates the properties of the second harmonics of monochromatic symmetrical normal waves. The analytical representations for nonharmonic distortion of normal waves with a free p...
A Discussion on the Phonon Density of States of Amorphous Germanium for the Infrared Range
Phonon density of states amorphous germanium infrared range quasiharmonic approximation
2010/12/10
A theoretical formulation for the phonon density of states of amorphous germanium in the infrared range is proposed. This formulation is based upon the quasi-harmonic approximation and is compared wit...
A Small Cluster Approach for the Electronic Density of States in Amorphous Germanium
Electronic density of states amorphous germanium bonding orbitals Born model
2010/12/10
The electronic density of states for very small clusters of amorphous germanium is calculated by using bonding orbitals. In this context, the Born model is considered as well as Pauling-type hybridize...