Simulations of Shock Waves and Cavitation Bubbles Produced in Water by Picosecond and Nanosecond Laser Pulses

Simulations of Shock Waves and Cavitation Bubbles Produced in Water by Picosecond and Nanosecond Laser Pulses
Author:
Publisher:
Total Pages: 13
Release: 1998
Genre:
ISBN:

The authors compare numerical simulations of bubble dynamics in water with experiments performed at the Medizinisches Laserzentrum Luebeck. Spatial and temporal features of the laser beam were modeled. Plasma growth was predicted using a moving breakdown model. The authors compare the measured and calculated positions of the shock front and the bubble wall as a function of time after optical breakdown in water. Nd:YAG laser pulses of 30-ps 1-mJ and 6-ns 10-mJ were simulated. The authors have extended previous work in which picosecond deposition was modeled as temporally instantaneous and spatially uniform.

Bubble Dynamics and Shock Waves

Bubble Dynamics and Shock Waves
Author: Can F. Delale
Publisher: Springer Science & Business Media
Total Pages: 393
Release: 2012-10-07
Genre: Technology & Engineering
ISBN: 3642342965

This book explores the interplay of bubble dynamics and shock waves, covering shock wave emission by laser generated bubbles, pulsating bubbles near boundaries, interaction of shock waves with bubble clouds, applications in shock wave lithotripsy, and more.

Comparison of Numerical Simulations and Laboratory Studies of Shock Waves and Cavitation Bubble Growth Produced by Optical Breakdown in Water

Comparison of Numerical Simulations and Laboratory Studies of Shock Waves and Cavitation Bubble Growth Produced by Optical Breakdown in Water
Author:
Publisher:
Total Pages: 10
Release: 1997
Genre:
ISBN:

In numerical calculations of idealized bubble dynamics test problems, Los Alamos computational tools perform well. A realistic equation of state must be used and geometrical features must be carefully modeled to simulate experiments accurately. In this work, we compare numerical simulations taking these features into account with experiments performed at the Medizinisches Laserzentrum Lubeck. We compare the measured and calculated positions of the shock front and of the bubble wall as a function of time in the laser optical breakdown of water produced by 30-ps 1-mJ Nd:YAG laser pulses.

Shock Waves

Shock Waves
Author: Zonglin Jiang
Publisher: Springer Science & Business Media
Total Pages: 1346
Release: 2010-05-30
Genre: Science
ISBN: 3540270094

The 24th International Symposium on Shock Waves (ISSW24) was held at the Beijing Friendship Hotel during July 11-16, 2004, in Beijing. It was a great pleasure for the Local Organizing Committee to organize the ISSW in China for the first time, because forty-seven years have passed since the First Shock Tube Symposium was held in 1957 at Albuquerque. The ISSW24 had to be postponed for one year because of the SARS outbreak in Beijing shortly before the Symposium was scheduled to be held in 2003, but it has achieved success due to the continuous support and kind understanding from all the delegates. It is very heart-warming to have had such an experience and I am very happy to have served as chairman for the Symposium. I would like to thank all for the contributions and help that they have given us over the past three years, without which we would not have had the Symposium. A total of 460 abstracts were submitted to the ISSW24. Each of the abstracts was evaluated by three members of the Scientific Review Committee and the decision on acceptance wasmade based on the reviewers' reports. 195oral papers,including 9plenary lectures, wereaccepted to be presented in three parallel sessions, and 135poster papers in three dedicated poster sessions. Topics discussed in these papers cover all aspects ofshock wave research.

Lasers in Ophthalmology

Lasers in Ophthalmology
Author: Franz Fankhauser
Publisher: Kugler Publications
Total Pages: 472
Release: 2003
Genre: Eye
ISBN: 9789062991891

Overview of the status of the broad range of laser applications.

Selected Papers on Ultrashort Laser Pulse Bioeffects

Selected Papers on Ultrashort Laser Pulse Bioeffects
Author: William P. Roach
Publisher: SPIE-International Society for Optical Engineering
Total Pages: 694
Release: 2002-12-31
Genre: Eye
ISBN:

This volume contains key papers that document the initial probing of the limits of subnanosecond pulses and the resulting discoveries of nonlinear effects. The papers tell the story of effects previously thought to be impossible to produce in tissue. If you read all the references carefully, you will see the studies evolve from speculation to experimentation to theory, and culminate in policy recommendations.

Optical-Thermal Response of Laser-Irradiated Tissue

Optical-Thermal Response of Laser-Irradiated Tissue
Author: Ashley J. Welch
Publisher: Springer Science & Business Media
Total Pages: 951
Release: 2011-01-15
Genre: Science
ISBN: 9048188318

The second edition maintains the standard of excellence established in the first edition, while adjusting the content to reflect changes in tissue optics and medical applications since 1995. The material concerning light propagation now contains new chapters devoted to electromagnetic theory for coherent light. The material concerning thermal laser-tissue interactions contains a new chapter on pulse ablation of tissue. The medical applications section now includes several new chapters on Optical Coherent Tomography, acoustic imaging, molecular imaging, forensic optics and nerve stimulation. A detailed overview is provided of the optical and thermal response of tissue to laser irradiation along with diagnostic and therapeutic examples including fiber optics. Sufficient theory is included in the book so that it is suitable for a one or two semester graduate or for senior elective courses. Material covered includes (1) light propagation and diagnostic application; (2) the thermal response of tissue and therapeutic application; (3) denaturation; and (4) ablation. The theory and applications provide researchers with sufficient detail that this volume will become the primary reference for laser-tissue interactions and medical applications.

Femtosecond Technology for Technical and Medical Applications

Femtosecond Technology for Technical and Medical Applications
Author: Friedrich Dausinger
Publisher: Springer Science & Business Media
Total Pages: 350
Release: 2004-10-14
Genre: Science
ISBN: 9783540201144

A comprehensive overview of the principles and applications of femtosecond lasers, especially applied to medicine and to production technology. The advantages and problems of ultrashort laser pulses are discussed in more detail in the context of applications in the micro-machining of technical materials such as drilling, surface structuring and cutting, in medical use like dental, ophthalmologic, neurological and otolaryngological applications, in metrology, and in the generation of x-rays. Safety aspects are also considered.

Laser Technology in Biomimetics

Laser Technology in Biomimetics
Author: Volker Schmidt
Publisher: Springer Science & Business Media
Total Pages: 281
Release: 2014-01-02
Genre: Science
ISBN: 3642413412

Lasers are progressively more used as versatile tools for fabrication purposes. The wide range of available powers, wavelengths, operation modes, repetition rates etc. facilitate the processing of a large spectrum of materials at exceptional precision and quality. Hence, manifold methods were established in the past and novel methods are continuously under development. Biomimetics, the translation from nature-inspired principles to technical applications, is strongly multidisciplinary. This field offers intrinsically a wide scope of applications for laser based methods regarding structuring and modification of materials. This book is dedicated to laser fabrication methods in biomimetics. It introduces both, a laser technology as well as an application focused approach. The book covers the most important laser lithographic methods and various biomimetics application scenarios ranging from coatings and biotechnology to construction, medical applications and photonics.