Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Kester Nahen"'
Publikováno v:
Klinische Monatsblatter fur Augenheilkunde. 237(12)
The treatment of patients with neovascular age-related macular degeneration (nAMD) requires frequent office visits to identify fluid in the retina that requires treatment. Frequent office-based examinations using optical coherence tomography (OCT) ar
Autor:
Antonio Finelli, Cristina Magi-Galluzzi, Kester Nahen, Mauricio Rubenstein, Osamu Ukimura, James Ulchaker, Massimiliano Spaliviero, Monish Aron, Inderbir S. Gill, Mihir M. Desai, Jihad H. Kaouk, Alireza Moinzadeh
Publikováno v:
Journal of Urology. 174:1110-1114
Laparoscopic partial nephrectomy (LPN) with hilar clamping represents the various challenges associated with warm ischemia. We tested the feasibility, and acute and chronic outcomes of LPN using a potassium-titanyl-phosphate (KTP) laser without vascu
Autor:
Gary D. Noojin, Ulrich Parlitz, Dirk Theisen, Benjamin A. Rockwell, Reginald Birngruber, Daniel X. Hammer, Kester Nahen, Stefan Busch, Alfred Vogel, Joachim Noack
Publikováno v:
Applied Physics B. 68:271-280
During optical breakdown, the energy delivered to the sample is either transmitted, reflected, scattered, or ab- sorbed. Pathways for the division of the absorbed energy are the evaporation of the focal volume, the plasma radiation, and the mechanica
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 2:847-860
We investigated plasma formation in distilled water by 30-ps and 6-ns Nd:YAG laser pulses of 1064-nm and 532-nm wavelength for focusing angles between 1.7° and 32°. We determined the optical breakdown thresholds and analyzed the plasma length achie
Autor:
Alfred Vogel, Kester Nahen
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 2:861-871
For pt.I see ibid., vol.2, no.4, p.847-60 (1996) We investigated the transmission, scattering, and reflection of plasmas produced in water by Nd:YAG laser pulses of 6-ns and 30-ps duration. The transmission measurements comprise a large energy range
Autor:
Robert J. Thomas, Dirk Theisen, Benjamin A. Rockwell, Alfred Vogel, Kester Nahen, Reginald Birngruber
Publikováno v:
Applied optics. 38(16)
The influence of spherical aberrations on laser-induced plasma formation in water by 6-ns Nd:YAG laser pulses of 1064 nm wavelength was investigated. Experiments and numerical calculations were carried out for focusing angles similar to those used fo
Autor:
Alfred Vogel, Kester Nahen
Publikováno v:
Journal of biomedical optics. 7(2)
Free-running Er:YAG lasers are used for precise tissue abla- tion in various clinical applications. The ablated material is ejected into the direction perpendicular to the tissue surface. We investigated the influence of shielding by the ablation plu
Autor:
Kester Nahen, Alfred Vogel
Publikováno v:
SPIE Proceedings.
Free running Er:YAG lasers are used for a precise tissue ablation in various clinical application as, for example, laser skin resurfacing. The ablated material is ejected from the tissue surface in the direction of the incident laser beam. We investi
Publikováno v:
ResearcherID
We investigated the interaction of a laser-induced cavitation bubble with an elastic tissue model by high-speed photographywith up to 5 Mill. frames/s. The elastic material consisted of a transparent polyacrylamide (PAA) gel whose elastic proper-ties
Publikováno v:
Physical review letters. 88(7)
We investigate experimentally the physical processes underlying pulsed cellular microsurgery and micromanipulation using nanosecond 532- and 1064-nm laser pulses focused at high numerical aperture. We find that the laser parameters employed for many