July 24, 2003

Femtosecond Cr:Forsterite Laser

The femtosecond Cr:Forsterite (Cr:F) laser system is a mode-locked ultrashort laser producing pulses in near infrared ~1250 nm range. The Cr:F gain medium is pumped by a 6-10W Ytterbium Fiber Laser giving an all solid state laser system that is an affordable source of femtosecond pulses in 1230 - 1270nm region. The combination of Ytterbium Fiber Laser and Cr:F oscillator gives pulses in the sub-65 femtosecond range at a repetition rate of 120/76 MHz and delivers power between 180-250mW.

The extremely short time duration of a femtosecond pulse gives enormous peak powers and power densities. Femtosecond lasers are being used in a rapidly growing number of applications, including ultrafast photochemistry, photophysics, photoablation, micromachining, imaging condensed matter, semiconductor device physics, and other areas. The femtosecond Cr:Forsterite laser is tunable over wavelengths from 1230 to 1270 nm, making it ideal for imaging condensed matter and biomedical applications. Frequency doubling can produce wave lengths in the visible at ~630 nm and supercontinuum generation produce pulses in the infrared and visible range.

July 24, 2003

Femtosecond Fluorescence Measurement System FOG100

Sum frequency generation (up-conversion) is used in the femtosecond optically gated (FOG) fluorescence kinetic measurement system FOG-100 to achieve a temporal resolution of better than 100 femtoseconds http://www.sciner.com/CDP/fog.htm. New version of the system has been designed to be matched with any type of femtosecond laser operating at > 1 kHz pulse repetition rate. The system includes optical and mechanical components installed on a breadboard, monochromator, selected photon counting PMT, electronic unit and PC software. The electronic unit contains photon counter, step motor driver, computer controlled PMT power supply and low voltage power supplies.
FOG-100 enables researches to study femtosecond kinetic in physics, chemistry and biology, including dynamics in biomolecules, semiconductors, optical telecommunication elements, organic materials, plasma etc.

July 24, 2003

Microchannel Plate detectors optimized for imaging VUV and EUV radiation

Next generation lithography research is one of the potential applications of the new Microchannel Plate detectors optimized for imaging VUV and EUV radiation. Current advanced lithographic equipment employs excimer lasers to produce feature sizes at 180 nm. Extreme ultraviolet (EUV) lithography tools will use 13.5 nm light to image chips with feature sizes below 45 nm. Much development work is still required in EUV radiation sources. Del Mar Ventures provide a complete program of stationary and gated MCP- Detectors for the registration of X-ray- and UV-radiation below 2000 Å. Each equipped with a single Au coated MCP plate and a phosphor screen on a fiber optic plate, which also serves as a vacuum to air interface. Depending on the detector model phosphor screen is either uniform or sectioned in several independent sectors or stripes. In multi-frame units, each individual sector or stripe can be gated separately with a time resolution as short as 3 ns. This allows to obtain images or spectra or both at individual times. Gated MCP detectors supplied with optional high voltage pulse generator that provides four high voltage outputs with variable delay time and width. Versatile trigger options, including an internal delay generator allow for an easy adaptation to the experimental requirements.

July 24, 2003

Microchannel Plate Detectors MCP-MA

DEL MAR VENTURES Microchannel Plate Detectors MCP-MA series are an open MCP detectors with one or more microchannel plates and a single metal anode. They are intended for time-resolved detection and make use of high-speed response properties of the MCPs. MCP-MA detectors are designed for photons and particles detection in vacuum chambers or in the space.

MCP-MA detectors are used in a variety of applications including UV, VUV and EUV spectroscopy, atomic and molecular physics, TOF mass–spectrometry of clusters and biomolecules, surface studies and space research.
MCP-MA detectors supplied as a totally assembled unit that can be easily mounted on any support substrate or directly on a vacuum flange. They also can be supplied premounted on a standard ConFlat flanges.