The double ionization of argon and xenon in an intense laser field has been studied in detail using an electron-ion coincidence technique. The observed double ionization electron spectra in xenon show resonancelike structures here resolved for the first time. In argon, the featureless spectra are consistent with rescattering. This represents a clear transition in the dynamics of strong-field do...

This paper describes the measurements of ion temperatures in an argon plasma experiment. Three flux ropes were created in a quiet background plasma, and the method of laser induced fluorescence was used to map temperature gradients of the three flux ropes at different times. Ion temperatures were observed in the 1 6 eV range, and the heat diffused due to the gyro-radius of argon ions.

introduction: human eye is a sensitive part of human body with no direct protection and due to its lack of protection against the external heat waves, studying the temperature distribution of heat waves on the human eye is of utmost importance. various lasers are widely used in medical applications such as eye surgeries. the most significant issue in the eye surgeries with laser is estimation o...

LASER in the otology field was used to perform tympanotomy and for the placement of ventilation tubes, vaporization of horny pearls and adhesion in the eardrum, remobilisations and ossicular modelings, “spot-welding”; in this field the most argued area of applicability of LASER is the surgery of the otosclerosis. The otosclerosis treatment with surgical LASER started with Perkins and Di Bartolo...

BACKGROUND To evaluate the efficacy of diode laser photocoagulation in patients with central serous retinopathy (CSR) and to compare it with the effects of argon green laser. METHODS Thirty patients with type 1 unilateral CSR were enrolled and evaluated on parameters like best corrected visual acuity (BCVA), direct and indirect ophthalmoscopy, amsler grid for recording scotoma and metamorphop...

Threshold radiant exposure of the cornea of gray rabbits was evaluated for Argon- and YAG-Laser light. Threshold for the Argonlaser is about 15 kJ/cm2 (exposure time 200 ms to 2 s, spot size 65 micron). For experimental and methodical reasons the value for the YAG-Laser (115 kJ/cm2) is of limited accuracy. The healing process of supraliminal lesions of the cornea is observed clinically and hist...

A non-invasive technique for quantification of argon laser induced burning second pain (C-fibre) is suggested. Using frequency analysis event related responses to burning pain can be detected in the EEG interval 1-2 seconds after laser stimulation. When the laser stimulus induced a burning pain perception, the power from 0.5-2.5 Hz of the EEG interval 1-2 seconds after stimulation differed sign...