PRODUCT FOCUS SPECTROSCOPY
spectrometers can now measure vertical spatial profile in addition to dispersed wavelengths. The ability to measure both spatial and wavelength resolution is beneficial for many applications, for example in fusion research. They operate in the vacuum ultraviolet (VUV) and view plasma impurity emission lines in the wavelength range of 300 to 3,200 Angstroms. The three-metre system reports results as follows: simultaneous wavelengths measured in a single discharge, about 37 Angstroms. With entrance slit width of 0.02mm, users can achieve 15.3 picometre spectral resolution FWHM. The vertical observation range can be tailored to different heights with a convex mirror. Doing so enables edge profile measurement and full profile measurements that cover the entire vertical size of the plasma. The new spectrometers can be built for
high vacuum (10E-6 Torr) and also ultra- high vacuum (10E-10 Torr). They can be equipped with microchannel plate intensifiers or sensitive CCD detectors. Other solar blind and single channel detectors are available for scanning applications.
mphersoninc.com
Ocean Optics’ Education Packs, built around its STS microspectrometer and Spark spectral sensor, were designed to inspire tech-savvy students. With the kit hardware and commonly available samples, teachers can integrate absorbance, transmission, fluorescence, emission and ph measurements into their curricula, bringing spectroscopy concepts to life. Modular and flexible, the packs are a budget-friendly option, compared to the cost of purchasing all the included hardware individually. The kits package a small-footprint spectral sensing system and illuminated cuvette holder (Edu-STS-VIS-Pack) or a direct attach cuvette holder accessory (Edu-Spark-Pack) with the ideal combination of accessories and software. The included components can be assembled in multiple configurations to perform several types of measurements. By buying education packs, educators can save up to 40 per cent off the retail cost of the components if purchased separately. The Edu-STS-VIS-Pack covers the
wavelengths of 350-800nm, while the Edu- Spark-Pack provides measurement over the range of 380-700nm.
Ocean Optics has established an
educational resource page at https://
oceanoptics.com/educational-resources
www.electrooptics.com | @electrooptics
A new family of flexible wavelength selectors (FWS) from Spectrolight combines the wavelength tunability and adjustable bandwidth of a traditional monochromator with the circular uniform aperture of a bandpass filter. Intended for spectroscopy and imaging
applications such as microscopy, machine vision, and remote sensing, the flexible wavelength selector features manual or automated (USB) control of wavelength and bandwidth, with an aperture up to 10mm diameter.
to help educators get started. The range of experiments is geared from high school, to community college, and up to university level.
www.oceanoptics.com
In August, StellarNet released a Forensic Spectral Library for Raman spectroscopy applications. The library includes over 200 narcotics, explosives, and chemical precursors. It was developed with assistance from the FBI
The FWS is based on Spectrolight’s
TwinFilm technology. Several models are available with tuning ranges to cover the visible spectrum, and FWHM bandwidth is adjustable from 2-20nm. The compact in-line design – measuring 40 x 76 x 40mm – makes the FWS ideal for end users and OEM integration, both for filtering sources and/ or detectors and cameras. Other advantages include high (>75 per cent) optical efficiency, sharp wavelength cut-off, and high (106
) out
of band extinction.
www.spectrolightinc.com
Wasatch Photonics’ OCT spectrometer, the Cobra-S, offers ultra- high speeds of 250,000 lines per second and an enhanced roll-off performance for deep sample penetration with high image clarity. The Cobra-S can be designed into near infrared OCT systems. As part of Wasatch Photonics’ Cobra
spectrometer line, the Cobra-S is designed for a wide variety of spectral-domain OCT applications, including ophthalmology, dermatology, angiography, oncology and industrial use. At 250kHz, the Cobra-S provides line
and easily integrates into the SpectraWiz-ID software, allowing searchability with real time ‘percentage match’ statistics. The spectral library was developed
measured on a Raman spectrometer equipped with a 785nm excitation source and fibre optic probe. Spectra were measured between 220-3,200cm-1
with better than 4cm-1 spectral
resolution. The library easily integrates with StellarCase-Raman and StellarNet’s modular line of Raman spectrometer systems.
www.stellarnet.us
scan rates at least two to three times higher than standard spectrometer models. With the design providing improved roll-off performance, resulting in deeper imaging and higher image quality, the spectrometer offers increased accuracy with superior data. This spectrometer package includes
available feature options for athermal opto- mechanics to maintain the performance level over a wide range of operating conditions. The compact, modular design was developed with research applications and OEM compatibility in mind. Cobra-S is available in multiple configurations to cover different wavelength regions for the upmost flexibility and function.
www.wasatchphotonics.com
November 2017 Electro Optics 27
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