The PolySense team has just published a new article on Optics Express demonstrating the possibility to use QTFs as photodetectors in a TDLAS sensor, exploiting the light induced thermo-elastic effect occurring when the laser light hits a QTF surface. In the best experimental conditions, QTF as light detector showed an SNR 6.5 times higher than that obtained by using a commercial amplified near-IR photodetector.
The following link provide access to the article.
http://polysense.poliba.it/wp-content/uploads/2020/06/119-Lites-1-opex_2020.pdf
