Question

Question 8: From the transmission curves provided below, which material would be best suited as optical material in the near infrared (800-1400 nm) spectroscopy range? Name the material and explain your answer! (6 points 100T 100 60 0.4 1.0 10 Wavelength (nm) Wavelength (nm) 100 100 T 80 Plastic Germanium (Ge) R 80 60 9 40 20 20 THOR 100 200 300 400 500 600 700 800 1.50 2.50 3.50 4.50 5.50 Wavelength (nm) Wavelength (um)

Answer 1

We know that more the transmittance means less absorption and vice versa.

Amongst all these spectra we can see that borosilicate glass has only very less transmittance in the given region which is 800-1200 nm. That means borosilicate glass has absorption in the above mentioned region.

Other materials can not be used for optical purposes as informations are not provided.

So borosilicate glass can be used as optical material.

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