Category : Laser components, systems, equipment and applications > Ultrafast laser system

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Santa Clara, Calif., November 7, 2005 – The new Chameleon Ultra™ laser from Coherent, Inc. (Santa Clara, CA) (Nasdaq: COHR) extends the capabilities of multiphoton excitation (MPE) microscopy by delivering an unmatched combination of wavelength tuning range, fast scanning and high peak power. Specifically, this new ultrafast laser tunes from 690 nm to 1040 nm, enabling calcium uncaging, autofluorescence techniques, and the use of green, blue and cyan fluorescent proteins, as well as deeper imaging within samples. A fast scanning speed of 25 nm/sec further supports calcium uncaging and facilitates multicolor imaging. The Chameleon Ultra also offers high peak power (>2W at 800 nm) throughout its tuning range for a stronger MPE signal.

Along with these advanced capabilities the Chameleon Ultra retains the same high quality output and ease-of-use characteristics that have made its predecessors the first choice of MPE researchers worldwide. In particular, the Chameleon Ultra output has an M2<1.1 and a round beam (ellipticity between 0.9 and 1.1) for optimum coupling with the microscope optical system. Chameleon Ultra also requires no manual adjustments, and is operated via a simple push-button, menu-driven interface on the power supply’s front panel. Furthermore, the laser can be controlled by a host computer using the supplied graphical user interface or, alternatively, the user can develop custom firmware based on the RS-232 command set or LabVIEW VI.

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