- #1
jaydnul
- 558
- 15
Say you have a red laser and pointed it at a ~175 nm antenna, then amplified the signal into a speaker. Would you then theoretically get a very high frequency audio signal (in the terahertz range, i realize this isn't practical)?
My question is really on the nature of the light emitted from the laser. My intuition would tell me the light would only cause an emf in ONE direction on the antenna, so how would you get an oscillating AC signal to create a sound. Is the EM radiation that can induce a sound signal arranged in a particular way that would give you emf in both directions on the receiving antenna?
My question is really on the nature of the light emitted from the laser. My intuition would tell me the light would only cause an emf in ONE direction on the antenna, so how would you get an oscillating AC signal to create a sound. Is the EM radiation that can induce a sound signal arranged in a particular way that would give you emf in both directions on the receiving antenna?