Download or read book Ablation Studies of Enamel Tissue Using Pulsed HF Laser written by and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We describe studies of the interaction of about 400 ns duration, multiline (2.6-3) micrometer HF laser with enamel tissue. The etch rate experiment showed an ablation threshold fluence of 47 J/sq cm but using the dispersion theory for optical coefficients of n and k for enamel at dominant laser lines, this value reduced to about 25 J/sq cm making it more comparable with other investigations. The main mechanism of enamel ablation at 2.78 micrometer where its absorption is very high thought to be due to microexplosive evaporation of water within enamel matrix ie. thermomechanical decomposition. Also, using photothermal deflection technique showed that at fluences below threshold a considerable amount of heat was emitted from the surface which was detected as a single compressive wave. The spectroscopic studies indicated that calcium was the main chemical element observed in plasma spanning from (420-620)nm.
Download or read book Ablation of Hard Biological Tissue Using Pulsed Hydrogen Fluoride Laser Radiation written by Joseph A. Izatt and published by . This book was released on 1988 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applications of Biophotonics and Nanobiomaterials in Biomedical Engineering written by Mohammad E. Khosroshahi and published by CRC Press. This book was released on 2017-10-30 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a link between different disciplines of nanophysics, biophotonics, nanobiomaterials & applications of nanobiophotonics in biomedical research and engineering. The fundamentals of light, matter, nanobiomaterials & nanophysics are discussed together, and relevant applications in biomedical engineering as well as other related factors influencing the interaction process are explicated. Theoretical and experimental research is combined, emphasizing the influence of crucial common factors on applications.
Download or read book A Study of Water Induced Er YAG Laser Ablation of Dental Hard Tissue written by Yonghoon Kwon and published by . This book was released on 1997 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrodynamic Model for Ultra short Pulse Ablation of Hard Dental Tissue written by and published by . This book was released on 1996 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: A computational model for the ablation of tooth enamel by ultra-short laser pulses is presented. The role of simulations using this model in designing and understanding laser drilling systems is discussed. Pulses of duration 300 fsec and intensity greater than 1012 W/cm2 are considered. Laser absorption proceeds via multi-photon initiated plasma mechanism. The hydrodynamic response is calculated with a finite difference method, using an equation of state constructed from thermodynamic functions including electronic, ion motion, and chemical binding terms. Results for the ablation efficiency are presented. An analytic model describing the ablation threshold and ablation depth is presented. Thermal coupling to the remaining tissue and long-time thermal conduction are calculated. Simulation results are compared to experimental measurements of the ablation efficiency. Desired improvements in the model are presented.
Download or read book Investigation of Ultra Short Pulsed Laser Ablation of Dental Enamel written by Christopher Artlett and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of Lasers in Dentistry written by and published by . This book was released on 1997 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of Lasers in Dentistry written by and published by . This book was released on 1998 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pulsed Laser Ablation of Tissue written by Joseph Tonry Walsh and published by . This book was released on 1988 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of Lasers in Dentistry IV written by John D. B. Featherstone and published by SPIE-International Society for Optical Engineering. This book was released on 1998 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Ablation and Desorption written by and published by Academic Press. This book was released on 1997-12-10 with total page 671 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume introduces the subject of laser ablation and desorption to scientists and engineers. It covers fundamental experimental and theoretical tools, models, and techniques, and introduces the most important applications. Clearly written and organized in a straightforward manner, Laser Ablation and Desorption lead the reader straight through the fundamentals of laser-surface interactions. Each chapter is self-contained and includes references to other chapters as necessary, so that readers may begin with the topic of greatest interest and follow the references to other aspects of the subject contained within the book. Key Features * Provides up-to-date information about one of the most active fields in physics today * Written and edited by major figures in the field of laser ablation and desorption * Represents the most comprehensive treatment of the state-of-the-art available
Download or read book Ablation and Caries Inhibition of Pits and Fissures Using CO2 Er YAG and Er YSGG Laser Irradiation written by Douglas A. Young and published by . This book was released on 2000 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Precise Dental Ablation Using Ultra short Pulsed 1522 Nm Laser written by Molly Erin Fahey and published by . This book was released on 2007 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pulsed Laser Ablation of Calcified Biological Tissue written by Joseph A. Izatt and published by . This book was released on 1991 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Irradiation of Dental Hard Tissues written by Steven Robert Visuri and published by . This book was released on 1996 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Laser Ablation of Biological Tissue Using Short Pulses of 355 Nanometer Light written by Bryan John Banish and published by . This book was released on 1993 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
