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QE65000-Raman拉曼科学级光谱仪
QE65000-Raman Scientific-grade Spectrometer for Raman
商品货号:ECS001250
商品品牌:ocean optics
详细介绍

 

QE65000型科学级光谱仪是探测器,光学平台和电子器件等技术的全新结合,为用户提供高灵敏的系统,以满足在低亮度下的应用。QE65000型科学级光谱仪的量子效率可达90%,并具有很高的信噪比和快速的信号处理能力。

 

 

 

 

产品特点:

  • 量子效率可达90%
  • 更高的系统灵敏度
  • 优秀的紫外响应能力
  • 板载微控制器
  • 满足低亮度级别应用的条件
  • 即插即用USB操作

 

Optical Bench Enhancements

The great performance of our QE65000-Raman Spectrometer has been enhanced to provide even more value: lower stray light, improved efficiency in the UV and Shortwave NIR, and better unit-to-unit reproducibility.

We are also offering a proprietary low BRDF bench coating to improve stray light performance and provide better reproducibility in unit-to-unit performance.

Quantum Efficiency to 90%

The QE65000 is the most sensitive spectrometer we have ever developed. The Hamamatsu FFT-CCD detector used in the QE65000-Raman 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-Raman 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-Raman Spectrometer is a great option for low-light level Raman spectroscopy. 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-Raman 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-Raman 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 Spectroscopy Operating Software reads these values for easy setup and hot swapping among computers, whether they run on Linux, Mac or Windows operating systems.

 

Specifications

Physical

Dimensions:

182 mm x 110 mm x 47 mm

Weight:

1.18 kg (without power supply)

Detector

Detector:

Hamamatsu S7031-1006

Detector range:

200-1100 nm

Pixels:

1024 x 58 (1044 x 64 total pixels)

Pixel size:

24.576 μm2

Pixel well depth:

1000 Ke-

Sensitivity:

~0.065 counts / e-

Quantum efficiency:

90% peak; 65% at 250 nm

Optical Bench

Design:

f/4, Symmetrical crossed Czerny-Turner

Focal length:

101.6 mm input and output

Entrance aperture:

50 µm wide slit

HC6 grating:

provides 123-170 nm range

Detector collection lens option:

None

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:

780 - 1100 nm (Grating dependent)

Optical resolution:

~6- 19cm-1 (Slit dependant)

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:

0 ºC to 50.0 ºC; no condensation

Set point:

Software controlled; lowest set point is 40 ºC below ambient

Stability

+/-0.1 ºC of set temperature in <2 minutes

 

 

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