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

Journal Article · Mon Jan 13 00:00:00 EST 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4862259· OSTI ID:22275754

Wang, Kangpeng; Ju, Yongfeng; He, Jin; Zhang, Long; Wang, Jun ^[1]; Chen, Yu ^[2]; Blau, Werner J. ^[1]

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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)

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.

• OSTI ID: 22275754
• Journal Information: Applied Physics Letters, Vol. 104, Issue 2; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
ABSORPTIVITY
CARBON NANOTUBES
COMPUTERIZED SIMULATION
LASERS
NONLINEAR PROBLEMS
PHTHALOCYANINES
SCATTERING