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SM303-HRS High Resolution Spectrometer

SM303-HRS TE cooled Back-Thinned 1024 px array CCD spectrometer



  • - High Resolution optical bench
  • - Scientific-grade high performance
  • - Extremely low dark noise and stray light
  • - Wide Dynamic range and high signal to noise ratio
  • - High Ultra-Violet Quantum efficiency
  • - Flexible optical input direct to slit or via fiber
  • - Designed from the ground up for a wide range of applications
  • - High speed data acquisition
  • - Standard design allows up to 200 to 1050nm range


The SM303 is ideal for UV/VIS/NIR spectrometry that requires a very high signal-to-noise ratio and/or high dynamic range, like fluorescence, Raman, and LED property testing applications. The back-thinned CCD has excellent sensitivity to UV and allows deep UV application. Well-designed housing allows up to 75nm measurement window within 200~1050nm for 0.2nm optical resolution with very low stray light. The TE cooled detector also helps to measure very low light signals by reducing the noise level over a long integration time.

NOTE: Please click SM303-HRS for the brochure file.


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SM32Pro & SMProMX - Windows (32-bit/64-bit) based software for data acquisition and analysis

- Transmission, reflectance, and absorbance measurements

- Data export, zoom in and out, spectrum overlays, and many more features

- Color analysis tools included

- Signal average and integration time control

- DLL libraries available for easy user software development

- VC++ / VB / LabView / Matlab examples available




Hamamatsu S7031-1006 Back-Thinned CCD

Pixel: 1024 x 58
Sensing Pixel size: 24µm x 24µm
Sensitivity: ~ 0.065 counts/e-
Well depth: 300 Ke- (vertical), 600 Ke- (horizontal)
Quantum efficiency: > 90% @650nm, 65% @250nm
Cooling: One-stage TE-cooled °C

Spectral Resolution

0.2 - 7nm FWHM

Spectral Range

Full Range: 200 - 1050nm
UV Range: 200 - 450nm
VIS Range: 380 - 760nm
NIR Range: 550 - 1050nm

Spectrograph f#


Fiber Coupler

SMA905 or FC standard

Stray Light

< 0.01% @632nm (< 0.05% avg)

Dark Noise RMS

< 2 RMS counts @35ms

Signal to Noise Ratio

1000 : 1

min. Integration Time


Trigger mode

Free Run mode
S/W Trigger mode
H/W Trigger mode

Orders Sorting Filter

Longpass filter or linear variable filter installed per wavelength coverage

Computer Interface

USB 1.1 / 2.0 compatible

SDK Support

Visual C++, Visual Basic, LabView, Matlab


9.25 x 6.95 x 3.75 inches

(23.5 x 17.65 x 9.52cm)


8.16 lbs

(3.7 kg)

Slit Options

10, 25, 50, 100, 200, and 400µm

TE Cooling Temperature

-10°C (one stage TE cooling)