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. Author manuscript; available in PMC: 2018 Jan 1.
Published in final edited form as: Methods Mol Biol. 2017;1486:183–256. doi: 10.1007/978-1-4939-6421-5_8

Fig. 7.

Fig. 7

Comparison of IR-enhanced QPD to PSD for IR laser detection. The trapping laser power measured by an IR-enhanced QPD (blue) and PSD (red) during its ON/OFF interlacing cycle is shown. The PSD exhibits parasitic low-pass filtering, characterized by long rise and fall times (reproduced from ref. [16] with permission from Nature Publishing Group)