Results 31 to 40 of about 9,356 (243)

Chalcogenide glass microsphere laser

open access: yesOptics Express, 2010
Laser action has been demonstrated in chalcogenide glass microsphere. A sub millimeter neodymium-doped gallium lanthanum sulphide glass sphere was pumped at 808 nm with a laser diode and single and multimode laser action demonstrated at wavelengths between 1075 and 1086 nm.
Elliott, Gregor R.   +4 more
openaire   +4 more sources

Effect of Cadmium Doping on the Optical Properties of As2(S, Se)3 Chalcogenide Thin Films

open access: yesФізика і хімія твердого тіла, 2016
As2S3 and As2Se3 chalcogenide glasses doped with cadmium were synthesized in quartz ampoules. Thin chalcogenide films based on the synthesized compounds were deposited by thermal vacuum evaporation. Optical transmission spectra of the obtained films were
I. V. Grytsyshche   +4 more
doaj   +1 more source

Investigation of the gamma photon shielding in Se–Te–Ag chalcogenide glasses using the Phy-X/PSD software

open access: yesCogent Engineering, 2022
Chalcogenide glasses are promising contenders for use in radiation shielding applications because of their remarkable radiation shielding properties, such as transparency and good thermal stability.
Fatemah. H. Alkallas   +8 more
doaj   +1 more source

Intermediate Phases, structural variance and network demixing in chalcogenides: the unusual case of group V sulfides

open access: yes, 2008
We review Intermediate Phases (IPs) in chalcogenide glasses and provide a structural interpretation of these phases. In binary group IV selenides, IPs reside in the 2.40 < r < 2.54 range, and in binary group V selenides they shift to a lower r, in the 2 ...
Ahn   +72 more
core   +1 more source

A New Threshold Switching Device With Tunable Negative Differential Resistance Based on ErMnO3 Polymorphs

open access: yesAdvanced Functional Materials, EarlyView.
Polymorph engineering in ErMnO3 enables low‐voltage, forming‐free threshold switching with tunable negative differential resistance. Conducting orthorhombic regions embedded in an insulating hexagonal matrix provide controlled Joule‐heating‐enhanced Poole–Frenkel transport. The hexagonal phase prevents excessive heating and breakdown.
Rong Wu   +8 more
wiley   +1 more source

On the glass transition temperature in covalent glasses

open access: yes, 1998
We give a simple demonstration of the formula relating the glass transition temperature, $T_g$, to the molar concentration $x$ of a modifier in two types of glasses: binary glasses, whose composition can be denoted by $X_nY_m+xM_pY_q$, with ^$X$ an ...
Kerner, R., Micoulaut, M.
core   +2 more sources

Measurement of non-linear optical coefficients of chalcogenide glasses near the fundamental absorption band edge [PDF]

open access: yes, 2018
A time-resolved pump-probe method is used for the evaluation of non-linear optical coefficients of chalcogenide glasses from the As-S-Se and Ge-Se systems near their fundamental absorption band edges.
Abdel-Moneim, Nabil   +7 more
core   +2 more sources

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

open access: yesAdvanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu   +5 more
wiley   +1 more source

Observation of very high order multi-photon absorption in GeSbS chalcogenide glass

open access: yesAPL Photonics, 2019
We report high order multi-photon absorption in Ge23Sb7S70 chalcogenide glasses up to the 11th order. Open aperture z-scan measurements with enhanced detection capabilities are performed at short-wave to mid-infrared wavelengths between 1.1 μm and 5.5 μm,
Byoung-Uk Sohn   +5 more
doaj   +1 more source

POM‐Based Water Splitting Catalyst Under Acid Conditions Driven by Its Assembly on Carbon Nanotubes

open access: yesAdvanced Materials, EarlyView.
A newly‐engineered POM‐based electrocatalyst incorporating non‐innocent counter cations exhibits fast kinetics for either the OER or HER under strongly acidic conditions (1 m H2SO4), depending on whether it is assembled on carbon nanotubes (1@CNT) or physically mixed with them (1/CNT). In water‐splitting tests using a two‐electrode setup, these systems
Eugenia P. Quirós‐Díez   +8 more
wiley   +1 more source

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