TSP

In this episode Shahriar takes a close look at the Resolve Handheld Raman Analyzer for Chemical Identification from Agilent. This instrument resembles a real-life Tricorder with its ability to identify chemicals through various opaque containers.

https://www.agilent.com/en/product/mo...

This video explores every aspect of this instrument's design from principle of operation to the modern electronics required to realize its function. The video is organized as follows:

00:00 - Introductions & first through-barrier scan example
02:46 - Raman history, invention & Nobel prize
04:41 - Infrared absorption, Raman spectroscopy theory, challenges and importance of fluoresce
10:49 - Fluorescence example & measurement using Uranium glass & HeCd laser
15:21 - Other applications of fluorescence such as microscopy
16:48 - Nonlinear optical effect and frequency doubling crystals, measurement of green laser
20:13 - Other applications of nonlinear optics, autocorrelation instrument to measure femtosecond pulses
23:18 - Electron excitation of atoms to produce photon emissions using Helium & Neon gasses
24:23 - Components required to build a Raman spectrometer
25:15 - Monochromator & spectrometer architectures, limitations & design
29:07 - Agilent Raman Spectrometer overall architecture, Raman chemical fingerprints
31:10 - Spatially Offset Raman Spectroscopy (SORS) theory & application
32:43 - Agilent Raman Resolve use-cases, accessories and application scenarios
36:03 - Measurements & identification of spilled unknown powders & liquids
40:53 - Through-barrier plastics & glass measurement of mixed liquids & acids
42:52 - Agilent Resolve extensive library & material categories, Reach-back support
44:03 - Chemical identification examples using the Vial accessory
47:26 - Trace chemical concentration & sensitivity measurement
48:34 - Concluding remarks

Data TNG image credit:
https://www.startrek.com/article/cosp...

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