Full company details
Newport - Oriel Instruments
Unit of MKS Instruments
31950 Frontage Rd.
Bozeman, MT 59715
United States
Phone: +1 406-586-1244
Fax: +1 406-586-9405
Phase-Locked Optical Chopper System
Photonics.com
Feb 2015IRVINE, Calif., Feb. 18, 2015 — The 75160NF phase-locked optical chopper system from Oriel Instruments is suited for spectroscopy applications.
It combines a chopper controller with an enclosed chopper head and includes four interchangeable chopper wheels. The enclosure prevents scattering and blocks unchopped background light, improving the signal-to-noise ratio. The system integrates with the company’s light sources and monochromators.
Optical choppers function by introducing a periodic interruption into the light path in an optical experiment, resulting in an amplitude modulation. This is useful for many low-signal optical detection schemes. The chopping frequency range is adjustable from 4 Hz to 2.0 kHz, using either the internal frequency synthesizer or an external source as the reference. When locked to an external reference, it is possible to chop for harmonics or subharmonics.
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