Hakki Refai
This guest blog comes from Hakki Refai, chief technology officer for Optecks , a TI DLP® Design House dedicated to developing products and solutions for DLP technology based applications.
In the previous installment of this blog series, we discussed current spectroscopy methods and the unique advantages of using DLP technology for spectroscopy. Now, let’s see how the different modules that can be integrated with the DLP NIRscan™ Nano EVM help you make the best use of its improved capabilities.
Three such modules are of interest here: high-performance transmittive, standard reflective, and fiber-coupled.
The OTM (Optecks Transmission Module) interrogates a sample by illuminating it with an infrared source and collecting the light that is transmitted through the sample for coupling to the EVM. A cuvette holder can be used with a cuvette or equipped with mounting components for handling gas, liquid and solid samples.
Example applications of transmission-based spectroscopy include:
The OTM utilizes a telecentric design to enhance SNR, and thus the DLP NIRscan Nano EVM can be used in more demanding applications – such as those with weak signals or requiring timely control of critical processes – than many of its larger, more costly competitors.
The reflective module interrogates a sample by illuminating it with an infrared source and then coupling the light reflected from the sample to the processing optics within the DLP NIRscan Nano EVM.
Example applications of reflection-based spectroscopy include:
The Optecks Fiber-Coupled Module (OFCM) provides the ability to measure the spectral content of an optical signal on an optical fiber cable. The module provides optimal coupling between the optical fiber and the input aperture of the DLP NIRscan Nano EVM to maximize the collected optical power for analysis.
Example applications of the fiber-coupled module for spectroscopy include:
In addition, the module would also accept inputs from remote sample interrogation systems that utilize an optical fiber to deliver the output of the interrogator to a spectrometer for analysis.
Want to learn more about spectroscopy and its applications? Check out a few resources:
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