QEPro Spectrometer

Product catalog summary

Overview
The QE Pro is a versatile, high-sensitivity spectrometer designed for general-purpose and low light level applications, such as fluorescence and Raman analysis. It features a back-thinned CCD detector with high quantum efficiency and onboard spectral buffering for data integrity at high collection rates. An optional internal shutter is available for managing dark measurements, and the interchangeable slit design allows for easy switching between measurements. Both customized and preconfigured models are available.

Specifications

Wavelength Range: Custom and preconfigured options within 200-1100 nm
Optical Resolution: 0.14-7.7 nm FWHM (depends on configuration)
Integration Time: 8 ms-60 minutes
System SNR: 1000:1 (single acquisition)
Dynamic Range: 85,000 (typical)
Stray Light: <0.08% at 600 nm; 0.4% at 435 nm
Buffering: 15,000 spectra
TEC Cooling: -40 ºC to +50 ºC
Interchangeable Slits: Multiple widths from 5 μm-200 μm; SMA bulkhead with no slit also an option
Internal Shutter (Optional): Actuation time: 11 ms; signal attenuation 0 dB (100% attenuated)

Performance and Flexibility
The QE Pro offers low-noise electronics and an 18-bit A/D converter, providing great sensitivity and high dynamic range. Users can customize the spectrometer to their application needs or choose from several preconfigured models.

Stability
The spectrometer includes a thermoelectric cooling (TEC) device to control the detector's temperature, reducing thermal noise and improving stability during long-term operation. The TEC maintains data stability to 4 dark counts over a 50 °C ambient temperature range, making it suitable for demanding online and at-line quality control measurements.

Model Variants

QE Pro UV-Vis: Wavelength range 200-775 nm, entrance aperture 10 µm, optical resolution ~1.2 nm, best for general-purpose and low light applications like fluorescence of proteins, dyes, and biological samples.
QE Pro Vis-NIR: Wavelength range 350-925 nm, entrance aperture 10 µm, optical resolution ~1.2 nm, suitable for general-purpose and low light applications such as specular and diffuse reflectance of materials.
QE Pro XR: Wavelength range 200-950 nm, entrance aperture 10 µm, optical resolution ~1.6 nm, ideal for high sensitivity over a wide range, including solar irradiance measurements and blood and tissue analysis.

Catalog excerpts

Robust Optical Design for Great Spectral Performance The QE Pro is a versatile, high-sensitivity spectrometer ideal for general-purpose and low light level applications such as fluorescence and Raman analysis. The spectrometer has a back-thinned CCD detector with high quantum efficiency and onboard spectral buffering to ensure data integrity at high collection rates. An optional internal shutter is available for effective management of dark measurements, and the interchangeable slit design allows users to switch between measurements easily. Both customized and preconfigured QE Pro models are available.

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High Performance, Great Flexibility With low-noise electronics and an 18-bit A/D converter, QE Pro delivers great sensitivity and high dynamic range. Users can customize the QE Pro to their application needs, or select from several preconfigured models: NEW QE PRO SPECTROMETER MODELS QE Pro model: Entrance aperture: Optical resolution (FWHM): Generalpurpose and low light applications Generalpurpose and low light applications High sensitivity over wide range Example applications: Fluorescence of proteins, dyes, biological samples Specular and diffuse reflectance of materials Solar irradiance measurements;...

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QEPro Spectrometer

QEPro Spectrometer

Catalog excerpts

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