photoelectrically

It can also mean that it responds to photons photoelectrically.

These were followed in 1961 by photoelectrically scanned linear and angle encoders.

This secondary eclipse can only be detected photoelectrically.

Each globule is very active photoelectrically and constitutes, to all intents and purposes, a minute individual photoelectric cell.

A Lachesean occultation of a star occurred in 1999 and was confirmed visually by five observers and once photoelectrically.

Also in 1956, the American scientist Thomas Townsend Brown appears to have predicted a similar lofting-falling cycle of photoelectrically excited lunar dust (along with controversial and as yet unproven speculations about unusual gravitational properties of this dust, an interest he maintained to the end of his life).