SiOx/Si radial superlattices and microtube optical ring resonators

Songmuang, R.; Rastelli, A.; Mendach, S.; Schmidt, O. G.

doi:doi:10.1063/1.2472546

Volume/Page
Keyword
DOI
Citation
Advanced

Volume: Page/Article:

Search Content Type

article doi:

Citation:

Phase change behaviors of Sn-doped Ge–Sb–Te material

Sn-doped Ge–Sb–Te material was prepared by laser synthesis. It has a rocksalt crystal structure for Sn doping content less than 30 at. %. A phase change temperature tester was developed to in situ measure crystallization temperature and melting point of Sn-doped Ge–Sb–Te. The crystalliza-tion temperature of Sn-doped Ge–Sb–Te is close to that of Ge2Sb2Te5 while its melting point is much lower than that of Ge2Sb2Te5. The melting points of Sn9.8Ge20.3Sb28.4Te41.5 and Sn18.8Ge19.5Sb25.3Te36.4 are 4...

Highly intense violet-blue light emission at room temperature in structurally disordered SrZrO₃ powders

Violet-blue photoluminescence was produced at room temperature in a structurally disordered SrZrO3 perovskite structure with a 350.7 nm excitation line. The intensity of this emission was higher than that of any other perovskites previously studied. The authors discuss the role of structural order-disorder that favors the self-trapping of electrons and charge transference, as well as a model to elucidate the mechanism that triggers photoluminescence. In this model the wide band model, the most ...

Scanning and transmission electron microscopy reveals that SiO_x/Si layers can roll up into microtubes and radial superlattices on a Si substrate. These hybrid objects are thermally stable up to 850 °C and emit light in the visible spectral range at room temperature. For tubes disengaged from the substrate surface, optically resonant emissions with mode spacings inversely proportional to the tube diameter are observed and agree excellently with those obtained from finite-difference time-domain simulations. The resonant modes recorded are strictly polarized along the tube axis.

RELATED DATABASES

To view database links for this article, you need to log in.

KEYWORDS and PACS

Keywords

superlattices, optical resonators, silicon, silicon compounds, finite difference time-domain analysis, scanning electron microscopy, transmission electron microscopy, optical multilayers

PACS

42.79.Wc

Optical coatings
42.79.-e

Optical elements, devices, and systems

ARTICLE DATA

Digital Object Identifier

http://dx.doi.org/10.1063/1.2472546

PUBLICATION DATA

ISSN

0003-6951 (print)

1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef

American Institute of Physics

For access to citing articles, you need to log in.

Figures (4)

Access to article objects (figures, tables, multimedia) requires a subscription; log in to view available files.
(Access to supplementary files, where available, is free for this journal.)