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Coherent Inc.

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Chameleon Laser

Coherent's Chameleon Laser A hands-free, single-box, ultrafast Ti:sapphire laser from Coherent Inc. in Santa Clara, Calif., the Chameleon provides femtosecond-pulse tuning from 720 to greater than 930 nm. Developed primarily for multiphoton excitation microscopy, this flexible laser oscillator also can be used for a wide range of ultrafast research applications, including time-resolved photoluminescence, nonlinear spectroscopy, fluorescence upconversion and quantum chemistry. It can excite fluorescent media such as green and yellow fluorescent proteins.

Besides tuning over a range of more than 210 nm, the fully automated Chameleon provides more than 1 W of average power and features a sealed, maintenance-free design with a menu-driven interface. The laser also incorporates features such as the Power Pulse system for long-term stability. With this system, active pointing control works with a patent-pending dispersion-balanced tuning mechanism to ensure that output power and pulse width are automatically optimized across the full tuning range.

The laser also has a patent-pending miniature air recirculator that allows tuning through atmospheric water vapor absorption lines above about 920 nm without the need for an external purge.
PI Physik Instrumente - Semiconductor Applications 5/24 ROS MR


Published: January 2003
Glossary
ti:sapphire laser
A Ti:sapphire laser is a type of solid-state laser that utilizes a titanium-doped sapphire crystal as the gain medium. The name Ti:sapphire comes from the combination of titanium (Ti) as the dopant and sapphire (Al2O3) as the host material. Ti:sapphire laser suppliers → This type of laser is known for its tunability across a broad range of wavelengths in the visible and near-infrared spectrum, typically from around 680 nanometers (deep red) to 1100 nanometers (near-infrared)....
Basic ScienceCoherentFeaturesfemtosecond-pulse tuningMicroscopymultiphoton excitation microscopyTi:sapphire laser

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