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.

Full text available as:

PDF - Requires Adobe Acrobat Reader or other PDF viewer.

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.

EPrint Type:	Conference or Workshop Item (Lecture)
Subjects:	All Records Session A2 Noise and Luminescence
ID Code:	434
Deposited By:	Caltech Library System
Deposited On:	17 June 2001
Record Number:	CAV2001:sessionA2.006
Official Persistent URL:	http://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.

Archive Staff Only: edit this record