HOLO materials
HOLO materials
Hello... i am working on my bachelor project and i need help. We want to record hologram on some THz frequencies, but we haven't a material. Can you help me? or can you post me some links, where i can find some information? (sorry for my english, i am from slovakia )
HOLO materials
tHz does not ring a bell. Are we talking using light? What spatial frequency would the fringes be in mm?
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HOLO materials
Maybe some useful info here?fefe wrote:Hello... i am working on my bachelor project and i need help. We want to record hologram on some THz frequencies, but we haven't a material. Can you help me? or can you post me some links, where i can find some information? (sorry for my english, i am from slovakia )
http://lmgtfy.com/?q=thz+holography
HOLO materials
FeFE what WL you need exactly? I have a IR holographic material (liquid and films) that is responsive to 815nm with special order, it works well and I did some sales to Cech's...
Sergio
Sergio
HOLO materials
Good grief, you want to make a radiohologram! Since photons at this wavelength are so weak, there are no materials sensitive enough to do anything interesting unless you have megawatts available. What you need to do is either sample or calculate a real RF interference fringe situation, then fabricate an arrangement of dielectrics, insulators and conductors that when illuminated with an RF plane wave reproduce it. There is some stuff out there on holographic antennas you could look for..fefe wrote:Sorry, i wrote THz, but i wanted to write MHz. I searched on google etc...
HOLO materials
Tom B. wrote:Good grief, you want to make a radiohologram! Since photons at this wavelength are so weak, there are no materials sensitive enough to do anything interesting unless you have megawatts available. What you need to do is either sample or calculate a real RF interference fringe situation, then fabricate an arrangement of dielectrics, insulators and conductors that when illuminated with an RF plane wave reproduce it. There is some stuff out there on holographic antennas you could look for..fefe wrote:Sorry, i wrote THz, but i wanted to write MHz. I searched on google etc...
yes... we want to do it with an antenna... my profesor said, he has got a material, but he wants me to try find another method or material
HOLO materials
Would this be just a Synthetic Aperture Radar? To reconstruct the recorded wavefront, you could use a Phased Array.
HOLO materials
yes... that's a good idea... but we want a real hologram, not only phase :think:jnhong wrote:Would this be just a Synthetic Aperture Radar? To reconstruct the recorded wavefront, you could use a Phased Array.