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Telecommunication Wavelengths (telecommunication + wavelength)

Distribution by Scientific Domains
Polymers and Materials Science66%

Selected Abstracts

Two-Photon Absorption-Related Properties of Functionalized BODIPY Dyes in the Infrared Range up to Telecommunication Wavelengths

ADVANCED MATERIALS, Issue 10-11 2009
Pierre-Antoine Bouit
Aza boron-dipyrromethene dyes functionalized by extended donor-,-conjugated moieties present high potentialities for nonlinear applications in the telecommunication spectral range (1300,1500,nm). Their significant two-photon absorption cross-sections (,2,>,600 GM) over this entire spectral range, combined with their high stability and solubility, allow nonlinear transmission experiments. [source]

Efficient Photosensitization and High Optical Gain in a Novel Quantum-Dot-Sensitized Hybrid Photorefractive Nanocomposite at a Telecommunications Wavelength,

ADVANCED FUNCTIONAL MATERIALS, Issue 5 2005
Choudhury, K. Roy
Abstract A high-performance hybrid polymeric photorefractive nanocomposite operating at the telecommunications wavelength of 1.34,,m is presented. The photorefractive nanocomposite is sensitized with PbS nanocrystals synthesized via a hot colloidal route. Photoconductivity experiments confirm and quantify the photocharge-generation quantum efficiency of the nanocrystals. A pronounced two-beam coupling effect at the operation wavelength is observed, leading to very high optical gains. Temporal evolution of the photorefractive growth process is also studied. [source]

Si-doped GaN/AlN quantum dot superlattices for optoelectronics at telecommunication wavelengths

PHYSICA STATUS SOLIDI (A) APPLICATIONS AND MATERIALS SCIENCE, Issue 7 2006
F. Guillot
Abstract We report on the controlled growth of Si doped GaN/AlN quantum dot (QD) superlattices, in order to tailor their intersubband absorption within the 1.3,1.5 µm telecommunication wavelengths. The QD size is tuned by modifying the amount of GaN in the QDs and the growth temperature. Silicon can be incorporated in the QDs to populate the first electronic level, without significant perturbation of the QD morphology. As a proof of the capability of these structures for infrared detection, a quantum-dot intersubband photodetector at 1.38 µm with lateral carrier transport is demonstrated. (© 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) [source]

Efficient Photosensitization and High Optical Gain in a Novel Quantum-Dot-Sensitized Hybrid Photorefractive Nanocomposite at a Telecommunications Wavelength,

ADVANCED FUNCTIONAL MATERIALS, Issue 5 2005
Choudhury, K. Roy
Abstract A high-performance hybrid polymeric photorefractive nanocomposite operating at the telecommunications wavelength of 1.34,,m is presented. The photorefractive nanocomposite is sensitized with PbS nanocrystals synthesized via a hot colloidal route. Photoconductivity experiments confirm and quantify the photocharge-generation quantum efficiency of the nanocrystals. A pronounced two-beam coupling effect at the operation wavelength is observed, leading to very high optical gains. Temporal evolution of the photorefractive growth process is also studied. [source]

Organometallic Complexes for Nonlinear Optics, 47 , Synthesis and Cubic Optical Nonlinearity of a Stilbenylethynylruthenium Dendrimer,

MACROMOLECULAR RAPID COMMUNICATIONS, Issue 9-10 2010
Christopher J. Jeffery
Abstract The synthesis of the 1st generation dendrimer 1,3,5-{trans -[Ru(C,C-3,5-(trans -[Ru(C,CPh)(dppe)2(C,CC6H4 -4-(E)-CHCH)])2C6H3)(dppe)2(C,CC6H4 -4-(E)-CHCH)]}3C6H3 proceeds by a novel route that features Emmons-Horner-Wadsworth coupling of 1,3,5-C6H3(CH2PO(OEt)2)3 with trans -[Ru(C,CC6H4 -4-CHO)Cl(dppe)2] and 1-I-C6H3 -3,5-(CH2PO(OEt)2)2 with trans -[Ru(C,CPh)(C,CC6H4 -4-CHO)(dppe)2] as key steps. The stilbenylethynylruthenium dendrimer is much more soluble than its ethynylated analog 1,3,5-{trans -[Ru(C,C-3,5-(trans -[Ru(C,CPh)(dppe)2(C,CC6H4 -4-C,C)])2C6H3)(dppe)2(C,CC6H4 -4-C,C)]}3C6H3 and, in contrast to the ethynylated analog, is a two-photon absorber at telecommunications wavelengths. [source]