Results 261 to 270 of about 1,063,886 (319)
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Optics News, 1984
The soliton laser1 is a novel mode-locked device employing a length of single mode fiber in its feedback loop. Its pulse width can be made to have any desired value, down to a small fraction of a picosecond, through choice of the fiber’s length. Operation is based on the ability of single mode fibers, in the region (λ> 1.3 µm) of negative group ...
L. F. Mollenauer, Roger H. Stolen
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The soliton laser1 is a novel mode-locked device employing a length of single mode fiber in its feedback loop. Its pulse width can be made to have any desired value, down to a small fraction of a picosecond, through choice of the fiber’s length. Operation is based on the ability of single mode fibers, in the region (λ> 1.3 µm) of negative group ...
L. F. Mollenauer, Roger H. Stolen
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International Ophthalmology Clinics, 1966
Lasers have made possible many applications in science, technology, medicine, and the arts and have changed our concepts of the nature of light.
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Lasers have made possible many applications in science, technology, medicine, and the arts and have changed our concepts of the nature of light.
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Choice of lasers for laser angioplasty
Journal of Tongji Medical University, 1989Thrombi in test-tube, intraarterial thrombi and pig aorta wall were in vitro irradiated with continuous CO2 laser, short pulsal and ultrashort pulsal YAG laser (with pulse-width of 10 ns and 40 ps, respectively) and their double frequency laser and excimer laser with a wave-length of 308 nm and pulse-width of 20 ns.
Cui Yi-ben +6 more
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Survey Review, 1974
Abstract Because lasers are being used increasingly in surveying, knowledge of the way in which a laser beam can damage the human eye is essential. This article describes the process by which damage to the retina may occur, and examines some methods by which this hazard can be reduced, if not eliminated.
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Abstract Because lasers are being used increasingly in surveying, knowledge of the way in which a laser beam can damage the human eye is essential. This article describes the process by which damage to the retina may occur, and examines some methods by which this hazard can be reduced, if not eliminated.
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1996
Lasers have been proposed as an adjunctive method of conventional root canal therapy in order to enhance the effect of irrigation solution and, thus, to improve the smear layer removal from root canal system. The aim of the present thesis was to evaluate the efficacy of hard tissue lasers (Er: YAG laser, Er, Cr: YSGG laser) for smear layer removal from
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Lasers have been proposed as an adjunctive method of conventional root canal therapy in order to enhance the effect of irrigation solution and, thus, to improve the smear layer removal from root canal system. The aim of the present thesis was to evaluate the efficacy of hard tissue lasers (Er: YAG laser, Er, Cr: YSGG laser) for smear layer removal from
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BJU International, 1999 Item does not contain ...
Floratus, D., Rosette, J.J.M.H.C. de la
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Chemische Laser (chemical lasers)
1989Bei einem chemischen Laser wird die Besetzungsinversion und die Laserstrahlung direkt durch eine chemische Reaktion erzeugt [vgl. Kompa 1973, Chester 1976, Gross & Bott 1976, Ultee 1979]. In diesem Sinne gelten die gasdynamischen CO2 Laser (vgl. Kap. 12.6.2) nicht als chemische Laser.
Markus W. Sigrist, Fritz Kurt Kneubühl
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Dental Clinics of North America, 2004
With the rapid development of laser technology, new lasers with a wide range of characteristics are now available and being used in various fields of dentistry. In the past two decades, much experience and knowledge has been gained. This article provides an overview of the current and possible future clinical applications of lasers in endodontics ...
Joshua Moshonov +2 more
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With the rapid development of laser technology, new lasers with a wide range of characteristics are now available and being used in various fields of dentistry. In the past two decades, much experience and knowledge has been gained. This article provides an overview of the current and possible future clinical applications of lasers in endodontics ...
Joshua Moshonov +2 more
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Lasers and laser–tissue interaction
Veterinary Clinics of North America: Small Animal Practice, 2002Light produced by a laser differs from incandescent light in that it is monochromatic, coherent, and intense; and it is these properties that allow lasers to be used as such unique tools in biomedical research and patient care. The effect of a laser beam on tissue is dependent on the optical and mechanical properties of the tissue, and the wavelength ...
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