Could be a laser beam used as an antena to detect EM waves?
Could be a laser beam used as an antena to detect EM waves?
(OP)
Could be a laser beam used as an antena to detect EM waves?... If yes how it could be designed the whole system?
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Could be a laser beam used as an antena to detect EM waves?
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RE: Could be a laser beam used as an antena to detect EM waves?
Clarification of your question: antennas do not "detect", they only convert between conducted and radiated. To detect one needs a detector.
Background - a laser beam is light, and light is just another wavelength of EM. The medium (vacuum, air) will be linear under any reasonable conditions. Therefore the EM signal will remain within its frequency spectrum, and the laser beam will remain on its precise wavelength. If one EM signal reacted to another, the EM spectrum would be a mess. So a laser beam will not react to (detect) an EM signal.
A laser beam is not conductive (unless it's so strong that it ionizes the air, but then it would punch holes in walls). So it won't be an antenna.
Somewhat related: I recently saw an article about how the plasma within fluorescent tubes (on) is quieter (RF) than expected and can be used as RF conductors and antennas. Ions, not laser beams.
All above "as far as I know".
RE: Could be a laser beam used as an antena to detect EM waves?
RE: Could be a laser beam used as an antena to detect EM waves?
But it's from 1966 and (as far as I know) has never been used in practice. It involves ionization of air.
RE: Could be a laser beam used as an antena to detect EM waves?
There would be plenty of non laser methods, like using neon lightbulbs, various materials that alter their optical properties in the presense of microwaves, etc.
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