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technology products laser and diodes laser ideal for multiphoton imaging


Coherent has introduced its new Chameleon Vision-S. The laser’s combination of short (80fs) pulsewidths and the industry’s highest average power and longest wavelength tuning range make it especially well suited to applications in multiphoton imaging. The laser delivers more than 410kW of usable peak power, after group velocity dispersion (GVD) precompensation, and hands-free tuning from 690nm to 1,050nm. The blend of short pulsewidths and high average power translate into the highest precompensated peak power currently available from any one-box laser, according to Coherent. Coherent states that its Chameleon Vision-S


is an ideal laser for multiphoton excitation (MPE) imaging for several reasons: The laser’s high peak power delivers maximum imaging brightness in deeper tissues, and because both laser oscillator and GVD precompensator are integrated on a single baseplate it also provides unmatched beam pointing stability (80µrad per 100nm of tuning), which is another prerequisite for deep tissue imaging. The new laser’s GVD precompensator provides


For biofluorescence imaging


Klastech Laser Technologies has launched its new Concerto 442nm solid state laser, offering Gaussian beam quality and ultra low noise at output powers of 100mW and above. The laser has applications in the biofluorescence market, in which its 442nm wavelength is widely used. The laser offers inherent single frequency


performance making it suitable for Raman and other spectroscopy applications in which diode lasers typically lack the necessary narrow line width. The laser also offers a coherence length of more than 100m, making it suitable for applications in holography, disc mastering and rapid prototyping –


laser safety barriers and curtains


Laser Components can now offer a wide range of barriers and curtains to shield large areas from laser radiation. The company can provide protection from wavelengths of 180-11,000nm and cover low, medium and high power applications. All Barriers comply with EN 12254 and EN 60825-4 safety standards. A range of styles of barrier are available


seamless, hands-free adjustment of negative dispersion from zero up to a maximum of 43,000fs², enabling unmatched pulse duration flexibility at the sample, even in next generation microscopes with multiple AO modulators. These next generation microscopes provide fast scanning of selected image sectors in applications such as neuroscience that require high frame rates to follow dynamic events in real- time. Additionally, the circular TEM00 Gaussian output beam (M² < 1.1) maximises image resolution at any tissue depth. www.coherent.com


including roller blinds, solid lightproof barriers and laser safety curtains, all of which are available in a wide variety of sizes. Barriers can be standalone or moveable and have the option of being combined to form a larger system. Safety curtains are available in a wide range of colours and can be hung on a rail system or moveable frame. Laser safety windows and frames are


available in a variety of sizes. If a more permanent solution is required we can also supply and install laser safety cabins to your required specifications. www.lasercomponents.co.uk


laser safety goggle


Univet has released its model 559 goggle, laser safety goggles designed for protection from high-power laser sources and which joins the 559 glasses version. The goggles provide excellent protection levels


applications that have previously been reliant on large He-Cd lasers. www.klastech.com


(D LB8) and are equipped with an aluminium alloy shell 2mm thick to guarantee maximum protection in the case of direct laser radiation. It can be equipped with interferential glass filters able to stop laser radiation at high protection levels. Polycarbonate absorbing filters can also be fitted in the goggles extending the range of laser sources. The wrapping design of the model allows the


user to wear them over prescription glasses. www.univet.it


safety


www.electrooptics.com


APRIL 2011 l electro optics 33


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