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Title: Threshold energies for filamentation and spectral characteristics of supercontinuum generation in THEOS-based nanocomposite organosilicon media

We have experimentally determined the threshold energy for filamentation in THEOS-based hybrid silicate nanocomposite materials containing polysaccharides and hyperbranched polyglycidols and the conversion efficiency from the 800-nm femtosecond Ti : sapphire laser output to a supercontinuum in the range 420 – 700 nm. The addition of sodium hyaluronate (polysaccharide) and low concentrations of Au nanoparticles or CdS quantum dots with an average diameter of 3 – 5 nm has been shown to considerably reduce the threshold energy for filamentation and improve the laser output to supercontinuum conversion efficiency. (extreme light fields and their applications)
Authors:
; ; ; ;  [1] ; ;  [2] ;  [3]
  1. Institute for Automation and Control Processes, Far-Eastern Branch, Russian Academy of Sciences, Vladivostok (Russian Federation)
  2. Institute of Chemistry, Far East Branch of the Russian Academy of Sciences, Vladivostok (Russian Federation)
  3. G.I. Nevelskoi Maritime State University, Vladivostok (Russian Federation)
Publication Date:
OSTI Identifier:
22395833
Resource Type:
Journal Article
Resource Relation:
Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 44; Journal Issue: 8; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CADMIUM SULFIDES; EFFICIENCY; NANOPARTICLES; NEAR INFRARED RADIATION; ORGANIC SILICON COMPOUNDS; POLYSACCHARIDES; QUANTUM DOTS; SAPPHIRE; SILICATES; SODIUM; SOLID STATE LASERS; THRESHOLD ENERGY; TITANIUM; VISIBLE SPECTRA