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Solution Science for Research and Industry

May 2010 ..... Low Profile Microscopy Cryostat with Continuous Flow from Janis Research Janis Research is now offering the ST-500-UC continuous flow cryostat for use in optical microscopy, imaging and high spatial resolution photoluminescence experiments. The combination of a low thermal-expansion support structure and internal vibration isolation results in nanometer scale vibration and drift levels. The specially designed cryostat geometry offers a short working distance (for use with high magnification optics) and permits mounting on common microscope stages and translators.

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Ultra-compact, low profile - only 31 mm thick Options for micro-spectroscopy techniques A variety of window materials and sizes Interchangeable sample mounts for different sample thicknesses Electrical feedthroughs A complete system solution including temperature controllers, pumping systems and storage dewars

For more information on this and other cryostats, visit our Janis Research product pages or email our Sales Team to request a brochure.

HOLOEYE's PLUTO Spatial Light Modulator enters a new phase HOLOEYE's PLUTO phase-only spatial light modulators (SLM) are based on reflective LCOS microdisplays with 1920 x 1080 pixel resolution and are optimized to provide a phase modulation up to and above 2pi out to 1550 nm. Packaged in a very small housing to ensure easy integration into optical setups and applications the PLUTO phase modulator series is offered in 4 versions optimized for the following wavelength ranges:

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PLUTO-VIS 420 ~ 850 nm Broadband anti-reflection coated PLUTO-NIR 850 ~ 1100 nm AR coated for 1064 nm plus thicker LC layer to guarantee a phase modulation of over 2pi still at 1064 nm PLUTO-NIR-2 750 ~ 950 nm Developed after interest from the femtosecond laser and biophotonics communities PLUTO-TELCO 1550 nm Version optimized for common telecommunication ranges up to 1550 nm

PLUTO SLMs have a reflectivity of about 60% and diffraction efficiencies of more than 80%, so a total light efficiency of > 50% per addressable diffractive device is possible. Operating PLUTO is easy - as with all HOLOEYE SLMs, a quality graphics card is used to send HDTV resolution images at a 60 Hz frame rate to the device via DVI. The PLUTO panel is then simply treated as an external monitor. If you would like to find out more about spatial light modulation, visit our HOLOEYE pages or email our Sales Team.

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Optical Force Microscopy gets boost from Elliot Scientific E4100 QPD System Elliot Scientific is now shipping production versions of the successfully field-proven E4100 QPD to allow researchers to measure optical trapping forces. By imaging an interference pattern onto a quadrant photodetector (QPD) and utilising dedicated software, an operator can monitor the position of a trapped particle with nanometer resolution. The measurement software also allows the user to calibrate the motion of a single trapped object and thus makes it possible to calculate the forces exerted — this makes optical tweezing particularly attractive for a growing number of scientists probing bio-mechanical systems. Several different configurations to match possible user requirements are available within the E4100 range. Elliot Scientific can supply a complete Force Measurement Optical Tweezer plug'n'play system, or this capability can be added to an existing tweezer installation. Retrofitting to a good quality microscope is also a viable alternative if there are budget limitations. Multiple QPDs and/or an auxiliary probe beam are among a number of other options also on offer. For more information on this and our other trapping system, visit our tweezer pages or email our Sales Team.

KLASTECH Delivers the Next Generation Verve CW DPSS UV Laser Verve, from KLASTECH, is the world’s most compact 266 nm CW DPSS laser. Powered by KLASTECH’s patented impedance matching technology, this revolutionary laser delivers up to 100 mW Pitch Perfect locked single frequency output in a rock solid thermally stable design. The Verve requires no water cooling, chiller or re-circulating nitrogen purge and the UV optics cavity is small enough to be encapsulated in nitrogen for life. Thanks to the ultra high second harmonic conversion efficiency delivered by the new technology, power consumption is limited to an astonishingly low 80 W. Currently available in 25, 50 and 100 mW output powers this is only the beginning, since the intra-cavity impedance matching technology offers outstanding scalability in the same compact package whilst still retaining the Pitch Perfect < 1MHz line width. For more information about this product, please email our Laser Team.

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E-Letter May 2010  

Emailed Newsletter for May 2010 Contents: 1. Low Profile Microscopy Cryostat with Continuous Flow from Janis Research 2. HOLOEYE's PLUTO S...