The enhanced QE65 Pro has an athermal design that promotes excellent
spectrometer wavelength stability, triggering functions for
providing accurate timing and synchronization between the spectrometer and
other devices and a replaceable slit design for added convenience.
An extensive range of gratings offers flexibility in optimizing
The QE65 Pro is the result of feedback from customers like you
who appreciate high performance at a reasonable price and appreciate
the flexibility of our modular approach to miniature spectroscopy.
Consider some of the enhancements we’ve made to the QE65 Pro:
- Availability of new gratings, selected for their optimal
wavelength range and stray light performance characteristics
- New optical bench components that more efficiently
manipulate light for greater throughput and higher sensitivity
- SMA 905 connector assembly with replaceable slit design for
added convenience and excellent repeatability
- Changes to the optical bench and its components that promote
excellent spectrometer wavelength thermal stability
At the heart of the QE65 Pro is a Hamamatsu FFT-CCD detector
distinguished by its high quantum efficiency (90% maximum) and low
etalon characteristics. Unlike linear CCDs, the 2D area detector in
the QE65 Pro allows us to 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.
What’s more, the TE-cooled (down to -15 °C) detector has low
noise and low dark signal, which enables low-light-level detection
and long integration times -- from 8 milliseconds to 15 minutes,
with virtually no spectral distortion.
Ideal For Raman
QE65 Pro is a great choice for fluorescence and low light level
applications and is particularly well suited for modular Raman
spectroscopy. For Raman, we offer a 900 mm-1 grating (#H36) that is
blazed at 500 nm and has good response at the 532 and 785 nm
laser illumination wavelengths typical of Raman.
In this setup, the QE65 Pro anchors a modular, probe-based Raman
system. You’ll note a bifurcated optical probe with one leg coupled
to a 785 nm laser (in middle of photo) and the other to the
spectrometer. Cuvette-based Raman analysis is also possible.