Science
Integrated lightwave electronics – techtoday19
Light waves oscillate far faster than most sensors can respond. A solar cell, or the infrared photodetector used to receive the signal from the remote in your DVR, can only sense the total energy delivered by the light — it can’t pick up the subtle details of…
Light waves oscillate far faster than most sensors can respond. A solar cell, or the infrared photodetector used to receive the signal from the remote in your DVR, can only sense the total energy delivered by the light it can’t pick up the subtle details of the rapidly oscillating electric field the light consists of. Essentially all commercial light sensors suffer from this same problem: They act like a microphone that can tell that a crowd of people are yelling (or whispering), but can’t make …
