The Chameleon Compact OPO-Vis from Coherent is designed for applications in multiphoton imaging, time-resolved spectroscopy, terahertz studies and materials science.
The new device includes an optional integrated second harmonic (SHG) accessory, which enables the automated frequency doubling of the optical parametric oscillator (OPO) and the Chameleon laser output.
When used in conjunction with the company's Chameleon Ultra tuneable one-box laser, users can access an automated tuning range of between 340nm and 1,600nm, with simple touchscreen controls and no manual intervention.
This OPO provides hundreds of milliwatts of output power over most of its tuning range, which can be expanded to cover the mid-infrared region between 1,750nm and 4,000nm.
Chameleon one-box Ti:S lasers have a fundamental tuning range of 680nm to 1,080nm.
This can be further extended towards shorter wavelengths with the addition of frequency doubling and tripling options as well as towards longer wavelengths with an OPO.
The latest SHG option in the Chameleon OPO integrates the frequency doubling options of both the Chameleon and the OPO in a single OPO unit.
This enables the user to double both the laser and/or the OPO outputs all under touchscreen control, also covering the traditional Ti:S tuning gap (500-700nm).
Use of the fan-poled OPO crystal technology enables the Chameleon laser and the Chameleon OPO outputs, or their SHG outputs, to be independently tuneable.
This provides two full degrees of freedom in dual-colour experiments.
The broad and independent tuning of the laser and OPO outputs enables CARS spectroscopy and imaging with a single laser system as well as fully flexible pump-probe studies in photochemistry and biology.
