BLACK-Comet UV-VIS Spectrometer

StellarNet BLACK-Comet spectrometers use aberration-corrected concave holographic grating optics to deliver research-grade performance for UV-VIS spectroscopy.

The series covers 190-850 nm in the BLK-C model and 280-900 nm in the BLK-CXR model. The mirrorless optical architecture minimizes stray light, improves UV sensitivity by two to three times compared with plane grating/Czerny-Turner designs and projects a flat field onto the CCD for uniform resolution across the wavelength range.

The instrument uses a 40 mm diameter concave grating, updated electronics with a fast 16-bit digitizer and a signal-to-noise ratio up to 1000:1. The optical bench architecture without mounting turrets or optical posts reduces thermal effects and improves stability with temperature changes.

Its rugged modular metal enclosure with no moving parts makes it suitable for lab, field, process and portable applications. Up to 8 units can be daisy chained at once.

Optical input is delivered through a single-fiber cable or probe assembly using a standard SMA 905 connector. Onboard memory stores preset calibrations, spectrometer settings and a snapshot spectrum from the sensitive 2048-element CCD detector.

Available options include interchangeable 14, 25, 50, 100 and 200 um slits, a TEC upgrade that cools the detector 15 degrees below ambient and zAP1/zAP2 upgrades for automation, WiFi and extended connectivity.