Iridian now offers Nano-Edge long pass filters (LPFs)! These edge pass filters have the steepest edge available on the market, offering unparalleled access to low frequency Raman modes.
Iridian’s Nano-Edge LPFs offer cut-offs of <26 cm-1 (for 785 nm), corresponding to 0.2% of the laser wavelength; even steeper than Iridian’s market-leading ultra-steep LPFs (cut-offs <40 cm-1)! These Nano-Edge LPFs also provide high transmittance (>90%), low ripple (<4-5%), a passband up to a wavelength of 1200 nm and deep blocking at the laser line (>OD 6).
This capability has been demonstrated for Nano-Edge LPFs at 488, 514.5, 532, 633 and 785 nm.
The use of our nano edge filters requires special attention to system optical design and performance, which are described in our Raman Edge Filter Tutorial.
Please contact us to further discuss how Iridian’s market-leading performance can benefit your instruments and Raman systems.