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Enhancement of laser-induced optical breakdown using metal/dendrimer nanocomposites (2002)

Ye, Jing Yong ; Balogh, Lajos ; Norris, Theodore B.

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 80 (2002), S. 1713-1715

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ISSN: 1077-3118

Source: AIP Digital Archive

Topics: Physics

Notes: We demonstrate that dendrimer nanocomposites (DNC) can be used to remarkably change the laser-induced optical breakdown (LIOB) threshold of a material, owing to a large enhancement of the local electric field. We have implemented LIOB using femtosecond laser pulses in a gold/dendrimer hybrid nanocomposite as a model system. Third-harmonic generation measurements have been employed as a sensitive way for monitoring the LIOB in situ and in real time. The observed statistical behavior of the breakdown process is attributed to a laser-driven aggregation of individual DNC particles. The breakdown threshold value of the DNC has been found to be up to two orders of magnitude lower than that of pure dendrimers or normal tissues. © 2002 American Institute of Physics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.1459483

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