Luzchem Research Inc. - Laser Flash Photolysis

Miniaturized Laser Flash Photolysis

LUZCHEM RESEARCH INC. has patented a turn-key miniaturized laser flash photolysis system that makes complex electronics, cumbersome software and large optical benches a thing of the past. The LFP systems incorporate everything needed except the excitation laser. These are a simple, yet powerful instrument, ready to perform a wide range of time resolved kinetic and spectroscopic measurements involving transient absorption or diffuse reflectance. The LFP system, including the monochromator, is completely computer controlled, making it easy to obtain kinetic and spectral data.

LUZCHEM can provide you with advice on laser manufacturers, or provide you with a quotation for the complete system. Contact us!

LFP-111 specifications can be downloaded as a PDF file:
LFP Specifications pdf

(30Kb)

LFP-111 Specifications:

1.- Footprint: LFP-111 12 x 18 inches Digitizer 14.8 x 5.9 inches Computer & printer variable	7.- Standard Sample Holder: For ambient temperature studies. Holds 10 x 10 mm cells and with adapter (optional) 7 x 7 mm cells and for Q-tubes.
2.- Temperature monitor: A sensor monitors and records (but does not control) the temperature in the sample compartment.	8.- Light Source: The monitoring beam is supplied by a ceramic xenon lamp and delivered through fiber optic cables.
3.-Time response and time scales: Detector/Digitizer ~3 ns rise time up to 300 MHz (2.5 GHz sampling) Millisecond measurements readily performed	9.- Triggering: The laser pulse is probed by a fiber that synchronizes the LFP system with the digitizer operating in the pre-trigger mode. The LFP-111 supplies +5 V trigger pulses for standard lasers, including two pulse sequences for YAG lasers requiring independent trigger for flash lamps and Q-switch, which can operate at different frequencies if required.
4.- Computer interfacing: The LFP-111 and digitizer are connected to the computer via GPIB and serial interfaces (supplied) that control all experimental parameters.
5.- Spectral Range: Variable depending on photomultiplier and grating selected by customer. With recommended PMT and grating: 200-750 nm. NIR option: up to 200-900 nm	10.- What else do you need once you buy the LFP-111? a nanosecond laser a 110 or 220 volt outlet
6.- Computer and software: The system is supplied with a computer operating under Windows and all the necessary interfaces. The software package has been developed in the LabVIEW environment from National Instruments and compiled as a stand-alone application.

Some data obtained with the LFP-111

Models and Variations

Model LFP-111
Transient absorption spectrometer for spectroscopic and kinetic laser flash photolysis measurements. It includes a ceramic xenon light source; 125 mm monochromator; Tektronix digitizer TDS-3000 series with 300 MHz bandwidth; compact photomultiplier and power supply, computer with monitor, cell holder and fiber optic connectors, temperature monitor, fiber optic sensor for laser-sensing pre-trigger signal, computer interfaces and the software needed to operate the system.

Model LFP-112
Laser photolysis transient absorption spectrometer for spectroscopic and kinetic laser flash photolysis measurements. It includes a ceramic xenon light source; 125 mm monochromator; Tektronix digitizer TDS-2000 series with 100 MHz bandwidth; compact photomultiplier and power supply, Computer with monitor, cell holder and fiber optic connectors, fiber optic sensor for laser-sensing pre-trigger signal, computer interfaces and the software needed to operate the system.

Model LFP-122
Laser photolysis transient diffuse reflectance spectrometer for spectroscopic and kinetic laser flash photolysis measurements. It includes a ceramic xenon light source; 125 mm monochromator; Tektronix digitizer TDS-2000 series with 100 MHz bandwidth; compact photomultiplier and power supply, Computer with monitor, cell holder and fiber optic connectors, fiber optic sensor for laser-sensing pre-trigger signal, computer interfaces and the software needed to operate the system.

Model LFP-112/122
Dual Capability: laser photolysis transient absorption and diffuse reflectance spectrometer for spectroscopic and kinetic laser flash photolysis measurements. It includes; two ceramic xenon light sources and one of each of the following:125 mm monochromator; Tektronix digitizer TDS-2000 series with 100 MHz bandwidth; compact photomultiplier and power supply, Computer with monitor, cell holder and fiber optic connectors, fiber optic sensor for laser-sensing pre-trigger signal, computer interfaces and the software needed to operate the system. Incorporates separate sample holder and monitoring beam systems for absorption and reflectance measurements.