Oscar E. Martínez

TL;DR: In this paper, a real-time detection of pulsed laser surface melting was performed by analyzing the photoacoustic signals produced on the samples and comparing the amplitudes of the transversal and longitudinal waves allowed them to identify the fluence thresholds for surface melting.

TL;DR: In this paper, the energy deposition efficiency and focal spot dynamics of electron beams produced by pulsed cold-cathode high-voltage glow discharges for metal surface treatment are investigated for two different cathode geometries.

TL;DR: A method based on measuring the polarization anisotropy of metallic dimers to determine distances in the range from 10 nm to 200 nm is proposed, thus filling the gap between fluorescence resonance energy transfer (FRET) and conventional microscopy.

TL;DR: In this paper, an optical noncontact technique is presented that provides a two-dimensional map of the hardness of treated steel at the micrometer level using photodeflection technique for determining the thermal diffusivity.

TL;DR: In this article, a novel passive Q-switching technique based on self focusing is studied theoretically and experimentally and results obtained with a simple aberrationless gaussian model that describes the short pulse generation dynamics for different cavity configurations and different nonlinear characteristics of the focusing medium.