Ocean Optics Torus User Manual

Torus

Concave Grating Spectrometer

Torus uses a Sony ILX511B linear CCD-array detector. However, the Torus debuts
a unique flat field optical bench design. The Torus has the same robust,
high-speed electronics made popular by our USB2000+, but with improved
throughput and less stray light due to the aberration-corrected toroidal grating.
Its interchangeable slit design adds on-the-fly flexibility.

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At a Glance

Wavelength range: 380-825 nm

Optical resolution: <1.6 nm FWHM

Thermal Stability

The Torus has good thermal stability. Its wavelength drift is mitigated and peak shape
stays the same over a wide temperature range. As a result, Torus makes possible precision
metrology, fluorescence and absorbance applications with demanding stray light and
thermal stability requirements.

SNR: 250:1 (at full signal)

Dynamic range: 8.5x107, 1300:1
(single acquisition)

Integration time: 1 ms - 65 s

Stray light: 0.015% SRPR @ 400nm

Thermal stability: 0.0056 nm ºC

% Stray Light

Wavelength (nm)

% Stray Light Torus vs. Planar Grating Spectrometers Measured with
Tungsten Halogen Source and 610 nm High-pass Filter

Typical Applications

• Absorbance of optically dense solutions

• Precision measurement of LEDs, lasers and other light sources

• Medical dosimetry in tissue and biological media

• Trace gas amounts in the atmosphere

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www.oceanoptics.com

Contact an Ocean Optics
Application Scientist
for details and pricing

Contact an application sales

engineer today to find out more.

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