LASER OSCILLATIONS IN Nd-DOPED YTTRIUM ALUMINUM, YTTRIUM GALLIUM AND GADOLINIUM GARNETS

Geusic, J. E.; Marcos, H. M.; Uitert, L. G. Van

doi:10.1063/1.1753928

Cited by 698 publications

(196 citation statements)

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“…Due to frequent complications, the use of some types of lasers was stopped. 2,6,7 Here we review all of the Iranian publications about the application of laser in urology.…”

Section: Introductionmentioning

confidence: 99%

“…In 1964, one of the first solid-medium lasers was "neodymium-doped yttrium aluminium garnet" (Nd:YAG). 6 One of the classifications of laser output in urology is continuous wave (CW); the output of the laser is continuously pumped and constantly emits light; whereas in pulsed wave (PW); it releases its energy in very short pulses which can have incredibly high peak powers, that is useful for stone fragmentation. 7 The pioneers of lasers in clinical urology were Parsons with a research in canine bladders in 1966, Staehler et al in bladder tumors in 1976 and Mulvany with experiments in calculi fragmentation in 1968.…”

Section: Introductionmentioning

confidence: 99%

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Laser Application in Iran Urology: A Narrative Review

Razzaghi

Ghiasy

et al. 2017

J Lasers Med Sci

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The usage of laser in medicine is not recent, and its history in urology goes back to 40 years ago. For the last 2 decades, common uses of laser have been treatments of subjects with urolithiasis, bladder tumors, benign prostatic enlargement, le sions of the genitalia and urinary tract strictures. To evaluate laser application in urology in Iran, we reviewed all of the Iranian literature on the topic. This study was designed to retrieve all studies on laser application in urology in Iran, regardless of publication status or language, covering years 1990-2017. Twentysix articles were identified: 12 about urolithiasis, 8 about benign prostatic hyperplasia (BPH), 2 case reports, 1 paper about prostate cancer, 1 on female urethral stricture, 1 review and 1 basic sciences study. We conclude that the use of this technology has not yet found its position in Iran, especially in the field of urology. The main causes for it are the difficult accessibility and disturb of laser devices and its accessories, as well as the lack of adequate knowledge of the medical community about this modality.

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“…Due to frequent complications, the use of some types of lasers was stopped. 2,6,7 Here we review all of the Iranian publications about the application of laser in urology.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Laser Application in Iran Urology: A Narrative Review

Razzaghi

Ghiasy

et al. 2017

J Lasers Med Sci

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“…Laser testing was done and spectra collected using a 3 mm spot-size laser at 1024 nm. Nd:YAG lasers typically emit light with a wavelength of 1064 nm, in the infrared [17,18]. We performed preliminary optical transparency measurements using a UV/Vis spectrometer, and we could observe optical transmission above 84% from 900 to 1450 nm as shown in Figure 8 from two batches of pellets labeled as 91A-2 and 91B-1.…”

Section: Pellet Fabrication and Characterizationmentioning

confidence: 99%

High-Purity Nanopowders for Laser Applications

Ganta

Venugopal

Hunt

et al. 2012

ISRN Nanotechnology

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We have successfully developed high-quality laser-grade yttrium aluminum garnet (YAG), and lutetium oxide (Lu 2 O 3 ), using a novel combustion chemical vapor condensation (CCVC) technique based on a proprietary NanoSpray Combustion process. The purity of the nanopowders was >99%. Nanopowders with different dopants have been synthesized over a 10-200 nm size range, with low-cost, high-purity precursors that are viable for large-scale production. Great strides have also been made in developing highly dense (>99% theoretical density) polycrystalline Nd-doped YAG pellets using vacuum sintering and hot isostatic pressing (HIP). This method is an alternative to the Czochralski method for making single-crystal ceramic bodies, which has several disadvantages including high cost, size, shape restrictions, and limitations in Nd concentrations (∼1 at %). Nanomaterials also enable higher percentages of Nd to be incorporated into the YAG lattice which improves laser efficiency and >85% near IR transmission, thereby reducing scattering losses associated with larger grain-size polycrystalline materials.

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“…The first laser, a ruby laser, was constructed in 1960 by Maiman (47). The first continuously generating laser was a low-powered helium and neon (He-Ne) laser developed by Javan et al in 1961 (48), while an Nd:YAG laser was demonstrated for the first time by Geusic et al at Bell Laboratories in 1964 (49). In 1965, Stern and Sognnaes used the ruby laser to vaporize enamel and dentin (50).…”

Section: Introductionmentioning

confidence: 99%

The use of lasers for direct pulp capping

Komabayashi¹,

Ebihara

Aoki

2015

J Oral Sci

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Direct pulp capping helps extend the life of a diseased tooth by maintaining tooth vitality. Nowadays, lasers are more frequently used during direct pulp capping in the clinic, but their use has not been previously reviewed. This review presents the basic properties of currently available lasers, scientific evidence on the effects of laser application on direct pulp capping, and future directions for this technology. An extensive literature search was conducted in various databases for articles published up to January 2015. Original in vitro, in vivo, and clinical studies, reviews, and book chapters published in English were included. Various laser systems have been increasingly and successfully applied in direct pulp capping. Lasers offer excellent characteristics in terms of hemostasis and decontamination for field preparation during direct pulp capping treatment; however, the sealing of exposed pulp with one of the dental materials, such as calcium hydroxide, mineral trioxide aggregates, and bonded composite resins, is still required after laser treatment. Clinicians should consider the characteristics of each wavelength, the emission mode, irradiation exposure time, power, type of laser tip, and the distance between the laser tip and the surface being irradiated. (J Oral Sci 57, 277-286, 2015)

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LASER OSCILLATIONS IN Nd-DOPED YTTRIUM ALUMINUM, YTTRIUM GALLIUM AND GADOLINIUM GARNETS

Cited by 698 publications

References 1 publication

Laser Application in Iran Urology: A Narrative Review

Laser Application in Iran Urology: A Narrative Review

High-Purity Nanopowders for Laser Applications

The use of lasers for direct pulp capping

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