PRODUCT UPDATE Amplifiers and power supplies 671MX amplifier
The new McPherson 671MX amplifier is a high-vacuum-compatible, current-to-voltage converting amplifier developed for use with vacuum ultraviolet silicon photodiodes. With an integral socketed photodiode mount, the combination detector/amplifier hybrid can be used to measure small photo generated currents with resolutions of 10fA and dynamic ranges of four orders of magnitude. The 671MX consists of a low noise operation amplifier with a selectable feedback resistor. The company’s VUV series photodiodes are used for the detection of UV, EUV and X-ray photons. Unlike common p-n junction diodes, the photodiodes do not have a doped dead- region and have zero surface recombination. These devices can be used to cover the complete photon spectral rage (0.0124nm to 1,100nm) because of their extremely thin 6nm oxide window and 100 per cent internal quantum efficiency.
www.mcphersoninc.com
Microscopy Alpha300 Access microscope
WITec has launched the Alpha300 Access micro- Raman system in conjunction with a thorough revision of the long-established Alpha300 series. WITec’s line of microscopes for Raman spectroscopy and imaging, atomic force microscopy and near-field microscopy all share a unique modularity that allows for single-technique solutions as well as correlative imaging configurations. Additional methods of analysis can be integrated with any instrument in the series at any time. The newly-developed Alpha300 Access
Laser dichroic beamsplitters
Semrock has launched λ/2 flatness 1mm thick laser dichroic beamsplitters mounted in commercially available microscope cubes. The beamsplitters minimise focus shift and aberrations in the reflected beam compared to standard products. Semrock has developed proprietary methods that guarantee the λ/2 flatness required for super-resolution applications.
Using a 1mm thick dichroic beamsplitter HF110A/32 Spectroscopy
Prior Scientific has added to its range of microscope filter wheels and shutters. The new HF110A/32 holds 10 32mm diameter filters and fits to the excitation ports of a range of popular microscopes. The filter wheel offers a way to change the
GS-1290 spectroradiometer
A new spectroradiometer from Gamma Scientific offers a combination of enhanced dynamic range, very low noise and high spectral resolution, enabling display manufacturers to inspect all the way up to Rec. 2020 colour gamut standards. Specifically, the GS-1290 display measurement system delivers a contrast ratio of 1,000,000:1, together with a wavelength resolution of 0.4nm. The product’s high blue light sensitivity makes it effective for use with virtually all display types, including LED backlit displays.
The GS-1290 DMS comes standard with the Gamma Scientific Austin Viewing System telescope for image acquisition. This optical system projects the measurement region out on to the device under test, or displays it on a USB connected host computer. Software selectable apertures enable the measurement spot size to be varied from as low as 72µm up to 28mm allowing high measurement versatility.
www.gamma-sci.com
42 ELECTRO OPTICS l JUNE 2016
wavelengths of light that a sample is exposed to quickly and precisely. It takes less than 95 milliseconds to move between adjacent positions, allowing the end user to alter the excited fluorophore quickly – ideal for multi-fluorophore applications where rapid imaging is essential. Magnetic covers on both sides of the wheel allow quick and easy filter changing.
Prior Scientific has also introduced accessory Nanoimager
Developed in the Clarendon laboratory in the physics department at the University of Oxford, Oxford Nanoimaging (ONI) has released the desktop fluorescence microscope – Nanoimager–to deliver nanoscale resolution imaging of live cells. With a low cost of entry and ease of use, Nanoimager opens opportunities for nanoscale research without the need for a large, specialist laboratory and without a daunting training and operating burden.
Nanoimager can generate nanoscale images of cellular features with 10 times the resolution of conventional fluorescence microscopy. It
microscope is an entry-level system for micro-Raman single-spot analysis and Raman mapping that extends WITec’s product portfolio to lower price segments. Its spectral quality, optical throughput and signal sensitivity are ensured by the WITec’s optical element design. The latest overhaul of the Alpha300 series has made it quicker, more flexible and more sensitive.
www.witec.de
in the light path minimises beam deviation, reduces light scatter in the emission path, and enables faster switching speed between different cubes. The beamsplitters are designed to minimise reflected wavefront distortion for even large diameter illumination beams and are readily available for the most popular microscopy cubes (such as Olympus U-MF2 & U-FF, Zeiss FL Cube EC P&C, Nikon TE 2000).
www.semrock.com
mounting wings for its H117 stage for inverted microscopes, enabling the simple and precise integration of tools such as microfluidic pumps, micro-injectors, micromanipulators, probes and sensors.
The H117 range of stages offers a travel range of 114 x 75mm, a maximum speed of 50mm/ sec, repeatability of 0.2µm and an average metric accuracy of approximately 0.05µm/mm.
www.prior-scientific.co.uk
can also measure the dynamics of molecular interactions and structural transitions, such as detecting the assembly of protein subunits or observing the synthesis of DNA in real-time.
The Nanoimager microscope unit measures 21cm x 21cm x 15cm. It has been engineered for optimum single-molecule imaging functionality. It may be operated on a regular desk or bench without the need for extra anti- vibration or environmental isolation.
www.oxfordni.com
@electrooptics |
www.electrooptics.com
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