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Energy Evaluation of Shock Wave Emission and Bubble Generation by Laser Focusing in Liquid Nitrogen.

Tomita, Yukio and Tsubota, Makota and An-naka, Nobuhito (2001) Energy Evaluation of Shock Wave Emission and Bubble Generation by Laser Focusing in Liquid Nitrogen. In: CAV 2001: Fourth International Symposium on Cavitation, June 20-23, 2001, California Institute of Technology, Pasadena, CA USA. (Unpublished) https://resolver.caltech.edu/CAV2001:sessionA2.006

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Abstract

When the energy level of a laser beam at the focus exceeds an irradiance threshold the optical breakdown occurs, followed by a series of high-speed phenomena such as plasma formation, shock wave emission and vapor bubble generation. In this paper the energy evaluation associated with these phenomena has been made for laser focusing in liquid nitrogen. It is found that the threshold laser energy capable of bubble formation has an extent with some probability, tending to decrease with increasing the applied pressure. The mechanical energies of shock wave emission and bubble generation have been investigated.


Item Type:Conference or Workshop Item (Lecture)
Record Number:CAV2001:sessionA2.006
Persistent URL:https://resolver.caltech.edu/CAV2001:sessionA2.006
Usage Policy:The papers of this symposium proceedings are protected by copyright, retained by the authors. Authors control translation and reproduction rights to these works. However, readers are granted permission for individual, educational, research and non-commercial reproduction, distribution, display and performance of this work in any format. This permission is in addition to rights of reproduction granted under Section 107, 108, and other provisions of the U.S. Copyright Act.
ID Code:140
Collection:CaltechCONF
Deposited By: Imported from CAV2001
Deposited On:17 Jun 2001
Last Modified:03 Oct 2019 22:49

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