Fundamental issues of device-relevant low temperature GaAs and related materials properties
In the past few years, a flurry of activity has been devoted to the studies and device applications of non-stoichiometric GaAs grown by molecular beam epitaxy at the extremely low temperature (LT) of 250 [...]
PAM XIAMEN offers Nd YAG Nd Doped Yttrium Aluminium Garnet Laser Crystal.
Main Specifications
dimensional tolerance:
Dia:< +/-0.025 mm ,length: < +/-0.5 mm
flatness:
λ/8 @633nm
Surface fineness:
10/5
flatness:
20 arc sec.
verticality:
5 arc min
orientation:
<111> crystalline direction,< +/-0.5°
coating film:
AR coating, HR Coating
reflect:
R<0.2%@1064, HR:R>99.8%@1064,R<5%@808nm,
clear aperture:
>95% central area
wavefront distortion:
<7mm diameter : <λ/8 per inch @ 633nm,
7mm diameter : <λ/10per inch @ 633nm
Publications related to YAG laser crystals:
[1]
J. E. Geusic et al., “Laser oscillations in Nd-doped yttrium aluminum, yttrium gallium and gadolinium garnets”, Appl. Phys. Lett. 4 (10), 182 (1964)
[2]
D. Y. Shen et al., “Highly efficient in-band pumped Er:YAG laser [...]
2019-03-15meta-author
High quality polycrystalline CdZnTe films were prepared by aluminum induced crystallization (AIC) and radio frequency (r.f.) magnetron sputtering. The crystallinity, morphology and optical property of both as-deposited and AIC samples were investigated by X-ray diffraction (XRD), and atomic force microscopy (AFM), as well as Raman and [...]
Unusual defects, generated by wafer sawing: Diagnosis, mechanisms and how to distinguish from related failures
In the wafer sawing process, unusual failures were observed and their root causes have been investigated. Besides classical and well-known failures, the following failure mechanisms were found. Surface-ESD (ESDFOS), caused [...]
Phosphorus-containing III-V compounds are the preferred materials for millimeter-wave and submillimeter-wave devices and circuits, optoelectronic devices, and solar cells. InGaP lattice matched to GaAs has a direct band gap of 1.9eV at room temperature, which is a highly efficient light-emitting material. We are pleased [...]
2017-10-11meta-author
PAM XIAMEN offers MoTe2 crystal.
MoTe2 (Molybdenum Ditelluride) can crystallise in two dimensional sheets which can be thinned down to monolayers that are flexible and almost transparent. It is a semiconductor, and can fluoresce. It is part of a class of materials called transition [...]
2019-05-13meta-author