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Intravital2P Microscope

Photonics.com
Mar 2011

 
ROCHESTER, N.Y., March 9, 2011 — The optical design of Till Photonics GmbH`s Intravital2P microscope dedicated to intravital imaging increases light collection efficiency for dual-color two-photon microscopy.

The ultracompact imaging platform provides an optimized dual-emission beam path for high collection efficiency in both detection channels. The enhanced signal detection facilitates imaging at low-light levels and improves signal-to-noise ratios for dynamic measurements deep within highly scattering tissue.

The proprietary Yanus scan head provides good scan quality with homogeneous two-photon excitation as well as large-area scanning. Combined with its fast scanning speeds, the microscope enables long-term in vivo imaging with reduced phototoxic effects.

The voice coil-based focus drive combines excursions of up to 7.5 mm with 50-nm resolution, step response time of <10 ms and high speed for 3-D views of the sample.

Features include a non-descanned detection scheme for dual-color imaging (two high-sensitivity GaAsP photomultiplier tubes with equal signal collection efficiency); a compact and easy to use multiphoton imaging platform; and unlimited access to conduct simultaneous electrophysiology and imaging. Other benefits include a 22-mm-diagonal scan field, up to four sampling channels, digital galvo control, bidirectional scanning at all speeds, a line-scan mode, arbitrary scan track, pixel time of <1 µs, flexible line speeds from 40 µs to several seconds and speed-based scan description.

The Colibri LaserScan open source software offers full control over the setup, including the motorized microscope and the scan head. It also offers the opportunity to integrate additional components, such as cameras, into the system.

For more information, visit: www.till-photonics.com


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