The experimental details of KrF laser “oscillator – amplifier” configuration used in UCSD mirror damage facility are given. Two commercial KrF lasers are used for running oscillator-amplifier mode of operation. The pulses from Compex KrF excimer laser is sliced using a Pockels cell to FWHM 5ns and passed through the LPX excimer cavity for amplification. The experimental details, gain analysis a...

Surface treatment of materials with excimer laser radiation often results in the formation of a rough columnar or cone-shaped surface topography, which leads to a considerable increase in the surface area. As a result, the search for a non-porous bioactive material with adequate mechanical properties and a high surface to volume ratio, similar to porous materials, which could be used for drug d...

infectious keratitis occurs rarely after laser refractive surgery, however the high volume of these procedures and young patient age render the prevention, diagnosis and treatment of this complication of utmost importance. early onset infectious keratitis is usually caused by gram positive bacteria while late onset cases are due to other microorganisms such as atypical mycobacteria, nocardia as...

Coronary laser angioplasty is limited by a high rate of dissection and the occurrence of abrupt closure and perforation. The aim of this study was to visualize the mechanical effects of pulsed lasers on two chamber in vitro models. These models consisted of 1 or 2 agar layers and calcium carbonate inclusions (1-layer model) or lipid (2-layer model) simulating lipid or calcified tissue. The incl...

BACKGROUND AND OBJECTIVES Alopecia areata is a common disease of unknown etiology; it causes significant cosmetic and psycho-social distress for most of the people it affects. We report on an innovative form of treatment in two patients with typical alopecia areata on the capillitium. STUDY DESIGN/PATIENTS AND METHODS We successfully treated two patients whose alopecia areata had worsened pro...

Punctate leukoderma presents as numerous, distinct, round or oval depigmented spots. Recently, laser therapy-induced punctate leukoderma associated with various Q-switched laser and carbon dioxide laser have been reported. A 25-year-old man presented with numerous, discrete, round, confetti-like, depigmented macules on his left neck. He had undergone 3 sessions of 532-nm Q-switched Neodymium: Y...