Two standard commercial flashlamp-pumped Nd:YAG (YAG denotes yttrium aluminum garnet) lasers have been upgraded to "pulse-burst" capability. Each laser produces a burst of up to 15 2 J Q-switched pulses (1064 nm) at repetition rates of 1-12.5 kHz. Variable pulse-width drive (0.15-0.39 ms) of the flashlamps is accomplished by insulated gate bipolar transistor (IGBT) switching of electrolytic cap...

Cryogenically cooled solid-state lasers promise a revolution in power scalability while maintaining a good beam quality because of significant improvements in efficiency and thermo-optic properties. This is particularly true for Yb lasers because of their relatively low quantum defect and relatively broadband absorption even at cryogenic temperatures. Thermo-optic properties of host materials, ...

Introduction: Pearly penile papules are common, benign lesions that may be a source of concern and embarrassment for many men. Therapeutic options such as electrodessication, shave excision, cryotherapy, and CO2 laser ablation have demonstrated variable degrees of efficacy, and may result in scarring and hypopigmentation. Holmium: YAG lasers are widely available to most urologists, and have ope...

Lasers range from those activated by natural gases, elements, molecules or man-made crystals to those that measure distance to the moon, create laser-guided warfare and record the price of our own groceries. Over the past several years one has seen a strong emergence of lasers in the field of dentistry. Lasers are not, however, new to the field as some of the in vitro studies report back to 196...

The COMPASS tokamak, originally from UKAEA, Culham laboratory, U.K., will be reinstalled at Institute of Plasma Physics, Prague. The scientific programme is focused mainly on the investigation of the edge plasma region with high temperature and density gradients called pedestal. Many innovations will be done and new diagnostics have to be constructed. One of the key diagnostics is an incoherent...

A first international comparison of I2-stabilized Nd : YAG lasers has been made between the National Research Laboratory of Metrology (NRLM), Tsukuba, Japan, the Joint Institute for Laboratory Astrophysics JILA (formerly the Joint Institute for Laboratory Astrophysics), Boulder, CO, the National Institute of Standards and Technology (NIST), Boulder, and the University of Colorado, Boulder. The ...

s from this work 1. Lam DGK, RFR Brown, Rice P Accelerated wound healing of Lewisite induced chemical burns with debridement by Ultapulse and Erbium. YAG lasers. Abstracts from the best regional presentations. Annals RCSE 84(3):214 May 2002 2. Rice P, Bennett NJ, Lam DGK, Brown RFR The Role of Dermabrasion in Lewisite-induced Skin Injury. In: Proceedings of the 2000 Medical Defense Bioscience R...

introduction: this study was performed to determine the shear bond strength of rebonded mechanically retentive ceramic brackets after recycling with erbium-doped yttrium aluminum garnet (er:yag) laser or sandblasting. methods: twenty-eight debonded ceramic brackets plus 14 intact new ceramic brackets were used in this study. debonded brackets were randomly divided into 2 groups of 14. one group...