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Press Releases & News
Orlando, FL (September 24, 2010) – OptiGrate Corp,
an Orlando-based high tech company, has launched a complete product
line of new ultra-narrow notch and bandpass filters for Raman
spectroscopy applications. The filters have a bandwidth less than 10
cm-1, which is about 10-20 times narrower than other
notch and bandpass filters commercially available for these
applications today.
“This new filter technology will make a crucial impact on the Raman
instrumentation world,” comments OptiGrate’s CEO Dr. Alexei Glebov. “The
filters enable measurements of ultra-low frequency Raman bands with
“standard” instruments, while earlier, it was only possible with more
complex, bulky, and obviously more expensive tools. This will largely
facilitate an access to ultralow frequency Raman studies, which are
vital for many applications in nanotechnology, pharma, semiconductor
processing, and so on.”
Earlier this year, the new BragGrate™ Notch Filters and BragGrate™
Bandpass Filters have been tested and qualified for production units by
HORIBA Jobin-Yvon, the world leading manufacturer of Raman instruments.
The qualification results, presented at International Conference for
Raman Spectroscopy (ICORS) in Boston in August 2010, demonstrated
feasibility of measuring Stokes and Anti-Stokes frequencies down to 4.5
cm-1 with a set of BragGrate™ filters using a single stage
spectrometer. The Horiba’s new UltraLow Frequency Unit with BragGrate™
filters is now available on the market. For more information, please,
refer to:
http://www.horiba.com/scientific/products/raman-spectroscopy/news-events/ultra-low-frequency-module-advances-raman-spectroscopy.
The BragGrate™ filters are based on reflecting volume Bragg gratings
(VBG) formed in proprietary photosensitive glass material, the
technology developed by the OptiGrate founders and protected by a
portfolio of issued and pending patents. The filters are formed by
holographic techniques in a bulk of glass, with no organic, thermally or
optically unstable materials. Therefore, in addition to providing the
narrowest filter line, the filters show outstanding environmental
stability, with no humidity or light induced degradation, and can
withstand temperatures up to 450°C. The filters are available for a wide
range of Raman laser source wavelengths such as 488, 514, 532, 633, 785,
and 1064 nm. Any custom wavelengths in the range from 450 nm to 2 µm are
also available.
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