Iridian Articles
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Finding The Needle In The Haystack: Raman Analysis And The Role Of Optical Filters
1/9/2015
Most Raman microscopy applications seek to maximize access to the Raman fingerprint of the molecule of interest, requiring filters that provide “more signal with less background.” This article discusses optical filters for Raman analysis, addressing filters for both bench-top and portable Raman applications.
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How To Specify A Filter
In general, typical filter optical specifications will include the wavelength ranges over which to reflect and transmit light, clear aperture of the filter, the polarization state of light for non-normal angles of incidence, light coherency (laser or white light), optical beam size and cone angle of light, and more.
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Lower-Cost And Faster Time-To-Market MWIR Equipment – The Right Optical Filter Is Key
Midwave infrared (MWIR) light is important in many hardware applications, and optical filters are critical to success. Some simple practices can help avoid over-specifying filter characteristics and driving up costs.
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“Fingerprint” Vs. Handheld Raman Applications And Their Optical Filters
When combined with microscopy, Raman spectroscopy can be used as a noninvasive, noncontact solution for exploring specific cellular structures and functions. It is no wonder that Raman has established a presence as an invaluable analytical technique both in labs and in the field.
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Understanding Edge Filters For Raman Spectroscopy
Since the excitation source laser intensity is often six to eight orders of magnitude greater than the Raman scattered signal, edge pass filters are required to block the wavelength of the scattered laser beam while transmitting the wavelength shifted Raman scattered signal.
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Solving PCR Filter Challenges For High-Performance qPCR Instruments
qPCR instrument users need high sensitivity and pristine signal clarity to achieve numerous delicate tasks. The right combination of optical filters significantly improves this functionality.