Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Schmidt-Kloiber A"'
Autor:
G. Paltauf, H. Schmidt-Kloiber
Publikováno v:
Journal of Applied Physics. 88:1624-1631
Thermoelastic waves generated by absorption of short laser pulses are used to characterize the layer structure of materials. The method is based on the analysis of the distribution of absorbed laser energy from temporal profiles of recorded acoustic
Publikováno v:
Scopus-Elsevier
Optical properties of soft tissue in the near infrared are determined using optoacoustic spectroscopy. The acoustic signals are generated with an optical parametric oscillator (OPO) having a tuning range from 1500 to 3500 nm. In order to record the a
Publikováno v:
Applied Physics A: Materials Science & Processing. 68:525-531
Photomechanical damage in absorbing regions or particles surrounded by a non-absorbing medium is investigated experimentally and theoretically. The damage mechanism is based on the generation of thermoelastic pressure by absorption of pulsed laser ra
Publikováno v:
The Journal of the Acoustical Society of America. 104:890-897
The acoustic wave field generated in front of a submerged fiber tip by short laser pulses is theoretically and experimentally studied by fast imaging and optical pressure measurements. It is shown that the finite size of the fiber causes strong tensi
Publikováno v:
Journal of Applied Physics. 82:1525-1531
Irradiation of an absorbing material with a short laser pulse generates a thermoelastic stress wave, from which the distribution of absorbed energy can be derived. This method is ideal to measure the light penetration in biological tissue. Especially
Publikováno v:
Applied Physics A Materials Science & Processing. 62:303-311
Photomechanical fracture induced by thermoelastic stress waves is an important mechanism of tissue ablation by short laser pulses. In this study, we present experimental investigations of the fracture process in ductile, water-containing materials an
Publikováno v:
Lasers in Medical Science. 7:387-391
The therapeutic application of laser light is required to minimize defects in the non-irradiated tissue. The primary mechanism of interaction is determined by the duration of laser action. In the case of continuous wave laser light a tissue layer sur
Publikováno v:
Scopus-Elsevier
Two-dimensional detection of ultrasonic waves is based on pressure-induced changes of optical reflectance at a glass–liquid interface, imaged with a time-gated video camera. The method is used to record optoacoustic waves generated after irradiatio
Publikováno v:
Journal of Endourology. 4:169-174
Laser-induced shock wave generation with a high-intensity Q-switched Nd:YAG laser depends on a laser-induced breakdown in a liquid with formation of an oscillating plasma bubble and cavitational ef...
Publikováno v:
SPIE Proceedings.
Optoacoustic imaging uses thermoelastic waves generated by short laser pulses to localize structures with preferential light absorption inside a material. The acoustic waves are directly generated in absorbing structures and are detected outside the