Product/Service

QE65000 Scientific-Grade Spectrometer

qe6500
The QE65000 Scientific-Grade Spectrometer is a novel combination of detector, optical bench and electronics technologies that provides users with a remarkably sensitive system for demanding low-light level applications such as fluorescence, DNA sequencing, astronomy and Raman spectroscopy. The QE65000 Scientific-Grade Spectrometer can achieve up to 90% quantum efficiency with high signal-to-noise and rapid signal processing speed...
The QE65000 Scientific-Grade Spectrometer is a novel combination of detector, optical bench and electronics technologies that provides users with a remarkably sensitive system for demanding low-light level applications such as fluorescence, DNA sequencing, astronomy and Raman spectroscopy. The QE65000 Scientific-Grade Spectrometer can achieve up to 90% quantum efficiency with high signal-to-noise and rapid signal processing speed.

The QE65000 Scientific-Grade Spectrometer is available for just $9999.

Quantum Efficiency to 90%
The QE65000 Scientific-Grade Spectrometer is the most sensitive spectrometer we have ever developed. It can achieve up to 90% quantum efficiency (defined as how efficiently a photon is converted to a photoelectron).

The QE65000 Scientific-Grade Spectrometer has a Hamamatsu back-thinned detector with great response in the UV. Its 2D arrangement of pixels (1044 horizontal x 64 vertical) is responsive from 200-1100 nm. The specific range and resolution are determined by your grating and entrance slit selections. The detector's columns are binned, or summed, inside the detector prior to the readout process, thereby minimizing readout noise.

The detector can be cooled down to -20.0 ºC with the onboard TE-cooler to reduce dark noise. The reduction of noise and dark signal allows integration times of the spectrometer of up to 15 minutes, which greatly enhances the detection limit in low-light level applications.

The combination of the spectrometer's low-noise detector and 16-bit A/D Converter delivers a dynamic range of 25000:1 and a signal-to-noise ratio of >1000:1.

Increased System Sensitivity
The sensitivity of the QE65000 Scientific-Grade Spectrometer is improved because the 2D detector allows the spectrometer to take advantage of the height of the entrance slit. In our other spectrometers, light entering the bench is regulated according to the slit's width. The height of the slit doesn't matter because the linear detectors cannot efficiently collect the light from the entire height of the slit. Using the 2D detector in the QE65000 Scientific-Grade Spectrometer, we can better take advantage of the additional light.

Excellent UV Response
The back-thinned detector in the QE65000 Scientific-Grade Spectrometer has great native response in the UV and does not require additional coatings to enhance its performance.

Ideal for Demanding Low-light Level Applications
The QE65000 Scientific-Grade Spectrometer is a great option for low-light level applications including fluorescence, Raman spectroscopy, DNA sequencing, astronomy and thin-film reflectivity. You can set the integration time of the spectrometer (analogous to the shutter speed of a camera) from 7 milliseconds to 10 minutes, with virtually no spectral distortion. Below is an example of a fluorescence setup with a QE65000, CUV-ALL 4-way Cuvette Holder, and a PX-2 Xenon Light Source.

Raman Spectrum of Acetaminophen

User-programmable I/Os
The QE65000 Scientific-Grade Spectrometer's onboard module has 10 user-programmable digital I/O lines for interfacing to other equipment; and a pulse generator for triggering other devices. Users can use the I/Os to flash a lamp, stop/start a process, and send a message/alarm during the spectrometer's integration period. The spectrometer's operating parameters can be controlled through software. In fact, wavelength calibration coefficients unique to each spectrometer are programmed into a memory chip right on the spectrometer.

Specifications

Physical

Dimensions: 182 mm x 110 mm x 47 mm
Weight: 1050 grams
Detector

Detector:

Hamamatsu S7031-1006

Detector range: 200-1100 nm

Pixels:

1024 x 58 (1044 x 64 total pixels); 24.6 µm square size

Pixel size:

24.576 μm square size

Pixel well depth:

300,000 electrons/well; ~ 1.5 million electrons/column

Sensitivity: 22 electrons/count for all wavelengths; 250 nm: 26 photons/count
Quantum efficiency: 90% peak
Optical Bench
Design: f/4, Symmetrical crossed Czerny-Turner
Focal length: 101.6 mm input and output
Entrance aperture: 5, 10, 25, 50, 100 or 200 µm wide slits or fiber (no slit)
Grating options: 14 different grating options, UV through Shortwave NIR
HC-1 grating option: provides 200-950 nm range
Detector collection lens option: None
OFLV filter options: OFLV-QE
Other bench filter options: Longpass OF-1 filters
Collimating and focusing mirrors: Standard only
UV enhanced window: No
Fiber optic connector: SMA 905 to 0.22 numerical aperture single-strand optical fiber
Spectroscopic
Wavelength range: Grating dependent
Optical resolution: ~0.14-7.7 nm FWHM
Signal-to-noise ratio: 1000:1 (at full signal)
A/D resolution: 16 bit
Dark noise: 3 RMS counts
Dynamic range: 7.5 x 109 (system), 25000:1 for a single acquisition
Integration time: 7 ms to 15 minutes
Stray light: <0.08% at="" 600="" nm;="" 0.4%="" at="" 435="">
Corrected linearity: >99.8%
Electronics
Power consumption: 500 mA @ 5 VDC (no TE cooling); 3 A @ 5 VDC (with TE cooling)
Data transfer speed: Full scans to memory every 7 ms with USB 2.0 port, 18 ms with USB1.1 port, 300 ms with serial port
Inputs/Outputs: 10 onboard digital user-programmable GPIOs (general purpose inputs/outputs)
Analog channels: No
Auto nulling: No
Breakout box compatibility: Yes, HR4-Breakout
Trigger modes: 4 modes
Strobe functions: Yes
Gated delay feature: No
Connector: 30-pin connector
Power-up time: <5>

Dark current:

4000 e-/pixel/sec @ 25 ºC; 200 e-/pixel/sec @ 0 ºC

Computer
Operating systems: Windows 98/Me/2000/XP, Mac OS X and Linux with USB port; Any 32-bit Windows OS with serial port
Computer interfaces: USB 2.0 @ 480 Mbps; RS-232 (2-wire) @ 115.2 K baud
Peripheral interfaces: SPI (3-wire); I2C inter-integrated circuit
Temperature and Thermoelectric (TE) Cooling
Temperature limits: -15 ºC to 50.0 ºC; no condensation
Set point: Software controlled; lowest set point is 40 ºC below ambient, to -15 ºC
Stability +/-0.1 ºC of set temperature in <2>