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QE65000 cooled CCD Spectrometer
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 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 $10499.
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 can achieve up to 90% quantum efficiency with high signal-to-noise and rapid signal processing speed. The QE65000 Scientific-grade Spectrometer is available in several versions:
- QE65000 $11,549
- QE65000-ABS $13,528
- QE65000-FL $12,835
- QE65000-RAMAN $11,723
- Quantum Efficiency to 90%
- Increased System Sensitivity
- Excellent UV Response
- Demanding Low Light-level Applications
- Onboard Programming
- Plug-and-Play USB Operation
- Optical Bench Options
- Installation and Operation Manual
- Pricing
- Specifications
Quantum Efficiency to 90%
The QE65000 is the most sensitive spectrometer we have ever developed. The Hamamatsu FFT-CCD detector used in the QE65000 provides 90% quantum efficiency (defined as how efficiently a photon is converted to a photo-electron). Most of our other detectors are linear CCDs but with this “2D” area detector, we can bin (or sum) a vertical row of pixels, which offers significant improvement in the signal-to-noise ratio (>1000:1) and signal processing speed of the detector compared with a linear CCD, where signals are digitally added by an external circuit.
Increased System Sensitivity
In our spectrometers with linear CCDs, the slit’s width, not its height, regulates the amount of light entering the bench because linear CCDs cannot efficiently collect the light from the entire height of the slit. But in the QE65000, the 2D area detector can better take advantage of the height of the slit and the additional light, greatly improving system sensitivity.
Excellent UV Response
Because the detector in the QE65000 is back-thinned (or back-illuminated), it has great native response in the UV and does not require the additional coatings that we typically apply to other detectors for UV applications.
Demanding Low Light-level Applications
The QE65000 Spectrometer is a great option for low-light level applications including fluorescence, Raman spectroscopy, DNA sequencing, astronomy and thin-film reflectivity. The TE-cooled (down to -15 °C) detector features low noise and low dark signal, which enables low-light-level detection and long integration times (analogous to the shutter speed of a camera) from 8 milliseconds to 15 minutes, with virtually no spectral distortion.
Onboard Programming
The QE65000 also has an onboard programmable micro-controller for controlling the spectrometer and accessories. You have access to 10 user-programmable digital inputs/outputs and a pulse generator for triggering other devices. You 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.
Plug-and-Play USB Operation
The QE65000 interfaces to a computer via USB 2.0 or RS-232 serial port. Data unique to each spectrometer are programmed into a memory chip on the QE65000; our Spectrasuite software reads these values for easy setup and hot swapping among computers, whether they run on Linux, Mac or Windows operating systems.
Optical Bench Options
At Ocean Optics, we understand that your work is unique and that you want a spectrometer to fit your specific needs. With the QE65000 Spectrometer, you can configure the bench for your application. Choose entrance aperture size, detector accessories, filters a grating and more. Our application scientists will help you determine which configuration will best work for you.
Physical
Dimensions:
182 mm x 110 mm x 47 mm
Weight:
1050 grams
Detector
Detector:
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:
8 ms to 15 minutes
Stray light:
<0.08% at 600 nm; 0.4% at 435 nm
Corrected linearity:
>99.8%
Electronics
Power consumption:
500 mA @ 5 VDC (no TE cooling); 3.5 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:
Yes
Breakout box compatibility:
Yes, HR4-BREAKOUT
Trigger modes:
4 modes
Strobe functions:
No
Gated delay feature:
Yes
Connector:
30-pin connector
Power-up time:
<5 seconds
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 minutes
Spectrecology
