Download e-book for iPad: Applied Laser Medicine by G. Müller (auth.), Professor Dr. H.-Peter Berlien, Professor

By G. Müller (auth.), Professor Dr. H.-Peter Berlien, Professor Dr.-Ing. Gerhard J. Müller (eds.)

ISBN-10: 3642189792

ISBN-13: 9783642189791

ISBN-10: 3642623913

ISBN-13: 9783642623912

The background of laser functions in medication starts off al­ within the early Nineteen Nineties a concerted motion application such a lot with the discovery of the laser itself. subsidized by means of the eu fee used to be performed in Europe for the dissemination of the secure use of It used to be just a couple of months after Maiman's invention lasers in drugs, and in 1996 an analogous application used to be whilst this new high-intensity mild resource used to be used for scientific purposes. mild as a healing software constructed with Russia. It used to be this German--Russian had lengthy been utilized in medication, specifically in oph­ cooperation that ended in a Russian model of the Ger­ thalmology and dermatology. as a result, those disci­ guy unique loose-leaf instruction manual. The editors genuine­ plines have been the 1st to exploit this new software. ized an ever-growing call for for an English model of this instruction manual, too. as a result, the editors are very even though the early effects weren't as promising as thankful to the Springer publishing condominium for aid­ anticipated, a brand new box for scientific analysis and deal with­ ment have been outlined. lots of the problems within the ing the English variation of the German original.

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To select a special wavelength an etalon or dispersion prism can be placed into the resonator. Figure 3 indicates the energy level scheme of an Ar ion laser. The argon atoms are ionized by an electric discharge; the generated Ar ions are excited from the ground state into higher energy levels by an additional collision with an electron. 1. Basic design of a gas ion laser The cross-section for this second excitation is very small; high electron current densities are needed to sustain the process.

The efficiency of holmium lasers can be raised by diode pumping of the laser material. Diode pumping also reduces the thermal load on the laser crystal; even cw operation at room temperature is possible. Diode-pumped holmium laser systems for medical applications with output powers up to about 1 Ware already under investigation. lm. A variety of applicators cover the requirements of the surgeon in the fields of orthopaedics, neurosurgery, general surgery, ENT and level. The output power of holmium lasers is reduced by about 3% per degree of rising temperature.

Resonators for cw Dye Laser Systems Figure 7 presents the typical design of a cw dye laser resonator. The pumping laser, in this case an argon ion laser, is focused by a mirror into the dye beam. With the help of a second mirror, a parallel beam is created which subsequently passes through several wavelength-selecting components. The actual laser resonator consists of the two mirrors. Pumping beam Fig. 7. Resonator of a cw dye laser References 1. Arecchi FT, Schulz-Dubois EO (1972) Liquid lasers.

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Applied Laser Medicine by G. Müller (auth.), Professor Dr. H.-Peter Berlien, Professor Dr.-Ing. Gerhard J. Müller (eds.)


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