Accession Number:

ADA456143

Title:

Hazards and Possibilities of Optical Breakdown Effects Below the Threshold for Shockwave and Bubble Formation

Descriptive Note:

Final rept. 30 Sep 2002-12 Sep 2006

Corporate Author:

LUBECK MEDICAL UNIV (GERMANY) MEDICAL LASER CENTER

Personal Author(s):

Report Date:

2006-07-01

Pagination or Media Count:

95.0

Abstract:

Femtosecond laser pulses enable the creation of spatially extremely confined chemical, thermal, and mechanical effects in biological media and other transparent materials via free-electron generation through nonlinear absorption. The principle mechanisms of femtosecond laser interaction with biomaterials are not only relevant for nanosurgery with tightly focused laser pulses but also for applications such as intrastromal corneal refractive surgery or presbyopia treatment where the laser pulses are focused at smaller numerical apertures. A significant advancement has been made in models of optical breakdown in biomaterials from this project, specifically from the understanding of specific absorption properties of the biomolecules or strains contained in the aqueous medium.

Subject Categories:

  • Anatomy and Physiology
  • Lasers and Masers
  • Theoretical Mathematics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE