Multi-spectral interference imaging using laser-induced plasma light source

Intense and Broadband THz Source using Laser-Induced Gas Plasma

Semiconductor Laser Multi-Spectral Sensing and Imaging

Multi-spectral laser imaging is a technique that can offer a combination of the laser capability of accurate spectral sensing with the desirable features of passive multispectral imaging. The technique can be used for detection, discrimination, and identification of objects by their spectral signature. This article describes and reviews the development and evaluation of semiconductor multi-spec...

Imaging Diagnostics of Debris from Double Pulse Laser-Produced Tin Plasma for EUV Light Source

The dynamics of debris from laser produced Tin (Sn) plasma was investigated for EUV light source. The kinetic behaviors of the Sn atoms and of the dense particles from Sn droplet target irradiated by double pulses from the Nd:YAG laser and the CO2 laser were also investigated by the laser-induced fluorescence imaging method and a high-speed imaging, respectively. After the pre-pulse irradiation...

Optical profiling using white light interference in spectral domain

The rapidly developing fields of Micro-Electro Mechanical System (MEMS) and micro optics require non contact and high precision measurements. Optical profilers are ideally suited for this. Monochromatic Phase Shifting Interferometry(PSI) can be used to measure slowly varying profiles and step height of less than half a wavelength. White light interferometry is used when large step height are to...

Multi-spectral imaging with infrared sensitive organic light emitting diode

Commercially available near-infrared (IR) imagers are fabricated by integrating expensive epitaxial grown III-V compound semiconductor sensors with Si-based readout integrated circuits (ROIC) by indium bump bonding which significantly increases the fabrication costs of these image sensors. Furthermore, these typical III-V compound semiconductors are not sensitive to the visible region and thus ...