北京錦坤科技有限公司
北京錦坤科技有限公司
此款光譜儀為設計的，單光子響應級別的超高靈敏度微型光譜儀，由于其采用偏振光學設計，不同于傳統的光柵式光譜儀，不需要狹縫，也可不用光纖，使其具有超大的受光面積。因而，此款超高靈敏度光譜儀是用于低光照測量的理想選擇，可用于熒光光譜，漫反射光譜，拉曼光譜分析。
超高靈敏度微型光譜儀的特點：此款光譜儀為設計的，單光子響應級別的超高靈敏度微型光譜儀，由于其采用偏振光學設計，不同于傳統的光柵式光譜儀，不需要狹縫，也可不用光纖，使其具有超大的受光面積。因而，此款超高靈敏度光譜儀是用于低光照測量的理想選擇，可用于熒光光譜，漫反射光譜，拉曼光譜分析。 900-1700nm (HT-NIR) < 10 nm @ l = 1000 nm (HT-NIR model) InGaAs 512 pixels (HT-NIR) 1 stage cooled
ARCspectro HT is ideal for low light applications or for the spectral analysis of diffusing light sources (or samples). Its unique design permits to gather a maximum of light over a large diffusing surface (several millimeters!) and over a large angle (±10°). This gives a tremendous throughput advantage (~50x more) compared to the most powerful grating spectrometers (also well-known Jaquinot advantage) which are intrinsically limited by a small entrance slit (typically 0.025mm). This makes this unique device ideal for applications were small light intensities has to be analyzed (fluorescence or Raman spectroscopy).
超高靈敏度微型光譜儀其指標參數如下表所示：
Features ARCspectro HT-HR Spectral range 400 nm – 1050 nm (HT-HR and HT-2D) Signal-to-Noise (single measurement full detector dynamic used, Ratio between the peak value and bottom value of HeNe Spectrum) 300:1 (Multiplex advantage) Spectral Resolution < 1 nm @ l = 550 nm (HT-HR model) Detector type Silicium CCD front illuminated detector array Full-well detector capacity 30'000 e- Dark noise 0.1% of dynamic range Detector sensitivity ~15 photons per count Relative wavelength fluctuation (measured with HeNe over 1 hour) < 0.01 nm Absolute Wavelength Accuracy < 0.5 nm Operating Temperature 10°C – 50°C Wavelength Drift with temperature 0.001nm per °C Measurement time 1 ms to "infinite" Operating Voltage USB powered Light guide core diameter (optional) 4 mm Entrance aperture 4 mm (Diam.) Communication Interface USB 2.0 Software Interface Windows XP, Window7, Labview CCD Readout Sampling rate 0.5 MHz A/D converter 16 bits (8-10 bits for HT-2D) Product Dimensions (including electronics) 15cm x 10cm x10cm Product Weight 300 g
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