PRODUCT UPDATE
Lenses and optics Online-calculation tool
Präzisions Glas & Optik has released a free online-calculation tool to calculate the transmittance of any Schott optical glass filter. The calculator is available in both German and English on Präzisions Glas & Optik’s website. To determine and select the right
Broadband hot mirrors
Laser Components has announced that its broadband hot mirrors can now block an increased amount of unwanted IR light. By adding a transparent conducting oxide layer to the rear surface of a standard hot mirror, the reflected wavelength range can be extended far into the infrared region. With excellent transmission in the visible spectrum, reflectance in the NIR and a reflectance of 80 per cent average in the mid to far IR, the mirrors ensure systems don’t overheat.
www.lasercomponents.co.uk
Calcium fluoride optics A full line of calcium fluoride (CaF2
filter glass material and appropriate filter thickness for individual applications, Präzisions Glas & Optik’s calculation app allows users to simulate the transmission curves of all available Schott colour glass filter materials online. After selecting the filter type and entering the desired filter
thickness, users can choose whether they want to calculate and show either the spectral transmission, or the internal transmission curve of the selected filter material, or both, at the same time.
In addition, users can select the displayed wavelength range
and zoom in to the range of interest to generate an individual transmission curve.
The free online calculator helps users find the perfect filter solution quickly for any type of filter application in research, development and industry.
www.pgo-online.com
New photodetector module for photon counting applications
The The PDM02-9111-TTL is a compact, rectangular format photon counting module incorporating a high sensitivity, low noise, 25mm diameter photomultiplier, a fast amplifier-discriminator, and a low power high-voltage supply. The combination of high-speed electronics and fast photomultiplier with low dark counts enables a wide dynamic range to be achieved. A positive polarity high-voltage supply is used for maximum count rate stability at very low light levels and the spectral range is 280-630nm.
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optics for use as front surface optics in detectors, sensors, spectrometers, instruments, and lasers are available from Meller Optics. Meller CaF2
optics feature a
highly polished surface for long life and operate over a broad transmission range with 90-95 per cent transmission uncoated. Offered in 1/4 to 5 inch diameter sizes, they can be supplied as windows, lenses, and prisms for a wide variety of applications from 0.2 to 9 microns. Custom manufactured to OEM specifications, Meller CaF2
optics
are available as plano-convex, plano–concave, and meniscus lenses and as plane, wedged, and tapered windows. Prisms can include roof types, 90° reflecting, 60° degree dispersing, beam splitters, and truncated configurations. Meller CaF2
optics are priced
according to configuration and quantity. Literature and price quotations are available upon request.
www.melleroptics.com
www.electrooptics.com | @electrooptics
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dynamic range from about 50cps to 100 Mcps (with count rate correction) 22mm diameter photosensitive input area other spectral range options
low power consumption (approx 500mW) easy to use
Contact us to learn more about how we can make photon detection easier. And, of course, we have a wide range of photomultipliers for your application, whether photon counting or analogue,
together with hardware such as HV supplies and light-tight housings.
ET Enterprises Limited, Riverside Way, Uxbridge, UB8 2YF, UK Phone: +44 (0)1895 200880 Fax: +44 (0)1895 270873
sales@et-enterprises.com www.et-enterprises.com
ADIT Electron Tubes, 300 Crane Street, Sweetwater, Texas 79556, USA Phone: (325) 235 1418 Fax: (325) 235 2872
sales@electrontubes.com www.electrontubes.com
The TTL output of the PDM02-9111-TTL is fully compatible with the MCS-CT3 multi-channel scaler/counter timer module for use in photon counting applications with a very wide dynamic range. The photomultiplier high-voltage and discriminator threshold level are pre-set for optimum performance, enabling photon counting operation simply by connecting to a +5V supply (which can be derived from the MCS-CT3).
making photons count FEBRUARY 2016 l ELECTRO OPTICS 49
Visit us at Photonics West Booth 539
San Francisco 13-18 February 2016
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