Journal ArticleDOI
Nonlinear absorption study of a C 60 -toluene solution
Daniel G. McLean,Richard L. Sutherland,Mark C. Brant,Donna M. Brandelik,Paul A. Fleitz,T. Pottenger +5 more
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TLDR
A five-level model of C60 yields excellent agreement with both pulse-width data sets for incident fluences as high as approximately 1 J/cm2 and additional phenomena observed at higher fluences indicate that other mechanisms may be active and contribute to optical limiting in this regime.Abstract:
Nonlinear absorption at 532 nm in a C60–toluene solution by using 8-ns and 30-ps laser pulses is reported. The transmittance for both pulse widths is fluence dependent. A five-level model of C60 is described that yields excellent agreement with both pulse-width data sets for incident fluences as high as approximately 1 J/cm2. Additional phenomena observed at higher fluences indicate that other mechanisms may be active and contribute to optical limiting in this regime. The application of C60 as an optical limiter material is discussed.read more
Citations
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Functionalized Carbon Nanotubes: Properties and Applications
TL;DR: Representative results concerning the solubility, dispersion, defunctionalization, and optical properties of the functionalized carbon nanotubes are presented.
Journal ArticleDOI
Recent development in the design of organic materials for optical power limiting
TL;DR: In this paper, the reverse saturable absorbers (RSA) and chromophores with large two-photon cross-sections are combined to design bimechanistic optical power limiters.
Journal ArticleDOI
Porphyrin and Fullerene Covalently Functionalized Graphene Hybrid Materials with Large Nonlinear Optical Properties
TL;DR: Results show that covalently functionalizing graphene with the reverse saturable absorption chromospheres porphyrin and fullerene can enhance the nonlinear optical performance in the nanosecond regime.
Journal ArticleDOI
Nonlinear Optical Materials for the Smart Filtering of Optical Radiation.
TL;DR: This Review gives emphasis to the nonlinear optical properties of photoactive materials for the function of optical power limiting and describes the known mechanisms of optical limiting for the different types of materials.
Journal ArticleDOI
Nonlinear optical properties of graphene oxide in nanosecond and picosecond regimes
TL;DR: In this paper, the nonlinear optical properties of graphene oxide (GO) were investigated at 532 nm in nanosecond and picosecond regimes, and it was shown that two-photon absorption dominates nonlinear absorption process of GO in the case of 2D pulses.
References
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Journal ArticleDOI
Optical limiting performance of C60 and C70 solutions
Lee W. Tutt,Alan Kost +1 more
TL;DR: In this article, the optical response of solutions of C60 and C70 in methylene chloride and toluene, using 8-ns pulses of 532-nm-wavelength laser light, was investigated.
Journal ArticleDOI
Characterization of the soluble all-carbon molecules C60 and C70
Henry O. Ajie,Marcos M. Alvarez,Samir J. Anz,Rainer D. Beck,François Diederich,K. Fostiropoulos,Donald R. Huffman,Wolfgang Kraetschmer,Yves Rubin +8 more
TL;DR: In this paper, the physical and chemical characterization of two new molecular forms of carbon, C{sub 60} and C {sub 70} were reported. But the results demonstrate a high yield of production (14%) under optimized conditions and reveal only C{ sub 60 and Csub 70 in measurable quantity, in an 85:15 ratio.
Journal ArticleDOI
Excited-state properties of C60
TL;DR: In this paper, the excited singletstate and triplet-state properties of C 60 in toluene have been measured by picosecond and nanosecond laser-flash photolysis.
Journal ArticleDOI
Optical absorption spectra of carbon 60 thin films from 0.4 to 6.2 eV
TL;DR: In this paper, the optical absorption spectrum for thin films of sublimed C 60 is presented, and the gap region can be described in terms used for amorphous semiconductors, having features such as an Urbach edge and sub-gap defect.
Journal ArticleDOI
Photothermal investigation of the triplet state of carbon molecule (C60)
TL;DR: In this article, the triplet state of C{sub 60} (buckminsterfullerene) was investigated by photothermal techniques, thermal lens (TL), transient grating (TG), and photoacoustic (PA) methods.