The HoloSpec™ ƒ/1.8i holographic imaging spectrograph includes an integrated pre-filter section and provides extremely high throughput. The aperture ratio of ƒ/1.8 provides five- to twenty-times greater collection angle than spectrographs operating at ƒ/4 to ƒ/8.
The HoloSpec ƒ/1.8i is the ideal spectrograph for Raman spectroscopy and other laser spectroscopy applications. It includes a state-of-the-art holographic SuperNotch-Plus™ filter, which attenuates Rayleigh scatter by over six orders of magnitude, allows collection of data at Stokes shifts as low as 50 cm-1, and allows simultaneous collection of both Stokes and anti-Stokes data.
