Instruments (Jun 2022)

A Compact Avalanche-Transistor-Based Pulse Generator for Transcranial Infrared Light Stimulation (TILS) Experiments

  • Abraham Lopez,
  • Haley N. Strong,
  • Kendra I. McGlothen,
  • Dustin J. Hines,
  • R. Jacob Baker

DOI
https://doi.org/10.3390/instruments6030020
Journal volume & issue
Vol. 6, no. 3
p. 20

Abstract

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A pulse generator using an avalanche transistor operating in current-mode second breakdown driving a 780 nm laser diode is reported. The laser diode is mounted on the skull of a mouse and used in transcranial infrared light stimulation (TILS) experiments. The output current pulse width is approximately 2 ns in an attempt to generate a true impulse-like optical pulse excitation for the TILS experiments.

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