Request InfoHellma GmbH & Co. KGHellma is a Plainville, N.Y.-based manufacturer of optics, photometer cells and accessories, including fiber optic immersion probes, photometric calibration standards and quartz microplates. The company also provides cylindrical and flat optics, beam splitters and mirrors for lasers and other applications and has a selection of stock and custom cells. It is a supplier of cathodeon light sources, including deuterium, hollow cathode, photoionization, Spectral line, Zeiss MMS, MCS and PGS spectrometer modules covering 190-2200 nm in combination (16 bit S/N); mechanical and holographic...See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra February 2024 IssueSilicon Nitride Light SourceThe Silicon Nitride (SN) light source from Kyocera Corporation was developed for use in high-performance Fourier transform infrared (FTIR) spectrometers. 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