In this issue:
Fiber optic cables were firmly attached to the implanted fiber optic cannulae with zirconia sleeves and coupled to lasers via a fiber-optic rotary joint. During photostimulation experiments, light pulse trains were programmed using a waveform generator that provided input to a blue light laser (473 nm; Laserglow). The team adjusted the light power of the laser such that the light power exiting the fiber optic cable was 10–12 mW using an online light transmission calculator for brain tissue. The team estimated the light power at the ARC at 4.99 mW/mm2. Note that this is likely a high estimation because some light was probably lost at the interface between the fiber optic cable and the implanted fiber optic cannula.
Full access to the materials and methodology, can be found by clicking here.
Details on the 473 nm laser used in the research can be found by clicking here.