Traditionally nanosecond laser pulses have been used for Laser-induced Breakdown Spectroscopy (LIBS) for quantitative and qualitative analysis of the samples. Laser produced plasmas using nanosecond laser pulses have been studied extensively since 1960s. With the advent of short and ultrashort laser pulses, there has been a growing interest in the applications of femtosecond and picosecond lase...

introduction: green light photo selective vaporization of the prostate (pvp) is a minimally invasive method of treatment for clinical benign prostatic hyperplasia with fewer side effects. the aim of this study is to evaluate the safety, effectiveness and cost analysis of pvp compared with transurethral resection of prostate. methods: a systematic search was done in cochrane, trip database, medl...

diabetic macular edema (dme) is an important cause of blindness in the working population and is currently challenging to treat. current interventions include focal laser or intravitreal injections. this article outlines a new treatment protocol based on the concept that peripheral ischemia is the introduction to angiogenesis, that will ultimately gather its momentum at the fovea. performing ex...

Hybrid laser processing for precision microfabrication of hard materials, in which the interaction of a conventional pulsed laser beam and another medium on the material surface leads to effective ablation, is reviewed. The main role of the medium is to produce strong absorption of the nanosecond laser beam by the materials. Simultaneous irradiation with the ultraviolet (UV) laser beam and the ...

Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) is one of the most successful direct solid sampling techniques for major, minor and trace element analysis. However, this technique still suffers from matrix dependent ablation characteristics, which makes quantification very difficult. Furthermore, the laser sampled material alters its composition from the sample to the de...

To study the effects of laser fluence (laser energy density), scanning line spacing and ablation depth on the efficiency of a femtosecond laser for three-dimensional ablation of enamel and dentin. A diode-pumped, thin-disk femtosecond laser (wavelength 1025 nm, pulse width 400 fs) was used for the ablation of enamel and dentin. The laser spot was guided in a series of overlapping parallel lines...

V ar ic os e V ei ns Endovenous interventions have transformed the treatment of varicose veins during the past decade. Interest in minimally invasive endovenous thermal ablation of the saphenous vein has substantially increased due to multiple reasons. Both radiofrequency ablation (RFA) and endovenous laser therapy (EVLT) can be performed as an office procedure; they are less invasive and usual...

A laser ablation-inductively coupled plasma-mass spectrometric (LA-ICPMS) technique utilizing a titanium-sapphire (TiS) femtosecond laser (fs-laser) has been developed for elemental and isotopic analysis. The signal intensity profile, depth of the ablation pit and level of elemental fractionation were investigated in order to evaluate the analytical capability of the present fs-laser ablation-I...

BACKGROUND Endo-venous laser or microwave ablation is a minimally invasive surgery for treating varicose veins of lower limbs. AIM The aim of our study was to determine whether endovenous microwave ablation of the greater saphenous vein was associated with better effectiveness and less complications than the endovenous laser ablation. MATERIALS AND METHODS From July 2008 to June 2011, 259 c...