skip to main content

SciTech ConnectSciTech Connect

Title: Nonlinear optical propagation in a tandem structure comprising nonlinear absorption and scattering materials

Laser propagation in a tandem structure comprising carbon nanotubes and phthalocyanines is studied by Z-scan method. Due to the different mechanisms of the two materials, the laser beam can be attenuated with different absorptivities, by changing the sequence of light passing through each material. Numerical simulations considering the effect of path length and the change of nonlinear coefficient within each material are conducted for understanding the distribution of laser intensity in the tandem system and hence, fitting of the asymmetric Z-scan curves. The results are helpful for the design of nonlinear optical devices comprising multiple nonlinear materials and mechanisms.
Authors:
; ; ; ;  [1] ;  [2] ;  [1] ;  [3]
  1. Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China)
  2. Key Laboratory for Advanced Materials, Department of Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237 (China)
  3. (CRANN), Trinity College Dublin, Dublin 2 (Ireland)
Publication Date:
OSTI Identifier:
22275754
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 2; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABSORPTION; ABSORPTIVITY; CARBON NANOTUBES; COMPUTERIZED SIMULATION; LASERS; NONLINEAR PROBLEMS; PHTHALOCYANINES; SCATTERING