The paper proposes method for detection of laser spot emitted by a laser pointer. A camera captures projection screen on which is displayed image from a digital projector and also laser spot from a laser pointer. Our developed algorithm can effectively detect red and green laser spot in real-time using image processing and by setting up camera to be captured high intensity of laser beam. To dem...

BACKGROUND Using the concept of selective photothermolysis, a variety of laser systems have been developed to remove unwanted hair. OBJECTIVE To evaluate the relative efficacy, tolerability, and subject satisfaction of three different laser systems used individually and in rotation for axillary hair removal. METHODS Twenty female patients (17 with dark-colored hair, 3 with red or light-colo...

This study describes a preclinical investigation with laser-activated bleaching agent for discolored teeth. Bleaching techniques involve a broad-spectrum approach utilizing hydrogen peroxide (3-38%) with or without heat or laser, carbamide peroxide (10-30%), or a mixture of sodium perborate and hydrogen peroxide. Extracted human maxillary central incisors were selected. In the bleaching experim...

The purpose of this article is to present several physics-based mathematical probabilistic models for Counter Directed Energy Weapon operational planning. The scenario analyzed is that of a surge of friendly Blue aircraft closing on a single High Energy Laser. The surge is a mixture of Blue active platforms, and Blue low-value decoys. Blue is targetable for a finite time. Blue response/measures...

We present a small-signal wave propagation theory on matter-wave superradiant scattering. We show, in a longitudinally excited condensate, that the backward-propagating, superradiantly generated optical field propagates with ultraslow group velocity and that the small-signal gain profile has a Bragg resonance. We further show a unidirectional suppression of optical superradiant scattering, and ...

A new class of oxygen indicators is described. Platinum(II) and palladium(II) complexes of azatetrabenzoporphyrins occupy an intermediate position between tetrabenzoporphyrins and phthalocyanines and combine features of both. The new dyes are excitable in the red part of the spectrum and possess strong room-temperature NIR phosphorescence. Other features include excellent spectral compatibility...

We describe the diagnostics of the particle dynamics during nanoparticle formation by pulsed laser ablation in a background gas. First, we describe the deposition of ZnO nano-structured thin films, along with the results of Rayleigh scattering observation of ZnO nanoparticle formation in the ablation plume. Then, we propose a new imaging technique, called re-decomposition laser-induced fluoresc...

BACKGROUND Millisecond pulse duration 1064-nm Neodymium:YAG (Nd:YAG) lasers have been shown to be effective in the treatment of some lower leg telangiectases. OBJECTIVE To evaluate the efficacy and complication rate of a millisecond pulse duration 1064-nm Nd:YAG laser in the treatment of facial telangiectases. METHODS Fifteen subjects were evaluated. RESULTS Moderate to significant improv...