LEDS for Spectroscopy
LEDs provide a source of photons at high irradience within a narrow spectral bandwidth and can be used to provide higher sensitivity detection for many hyper-spectral process control applications including;
- fluorescence spectroscopy and imaging
- photoluminescence spectroscopy and imaging
- absorption and transmission measurements
- high-resolution colour reflectivity measurements
- low resolution Raman spectroscopy
- photoacoustic spectroscopy
With compact, low-power consumption, solid-state construction and capability to be used in modulated configuration for frequency-domain spectroscopy, a carefully selected array of LEDS can replace large monochromator assemblies and make many applications commercially viable. In many applications requiring multi-wavelength excitation, a solid-state switchable LED array can enhance measurement speed and simplify design by eliminating scanning assemblies.
Savante supplies highly-qualified individual LEDs across the UV-Visible-Near Infrared spectrum; each individually characterised for fast warm-up, narrow bandwidhth spectral content, power stability, thermal performance and emission profile. In many prototyping projects, this data can be essential in reducing the time and effort required to optimise a particular illumination assembly. Sources can be further tuned using polarisers or band-pass, low or high pass filters for improved cut off.
The graph below shows our ever evolving and extensive library of LEDs wavelengths available in 3mm and 5mm clear lens output.