Infrared-frequency rectifying

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Diodes capable of rectifying AC at infrared frequencies could potentially be applied in frequency mixers for infrared communications and data multiplexing. However, nanoscaled thermionic diodes are not suitable for this purpose due to their design limitations, including the heating of both electrodes and issues with transit time. While the idea of designing such diodes raises questions about potential breakthroughs, experts suggest that significant progress is unlikely. Alternative methods using optics or optoelectronics already exist for similar applications. Overall, the current technology landscape does not favor the development of infrared rectifying diodes.
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What applications (except usage in rectifying infrared nanoantennas for harvesting thermal energy) would find a diode that could rectify AC having infrared frequency?
Could nanoscaled thermionic diodes be used for that?
 
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user-000 said:
What applications (except usage in rectifying infrared nanoantennas for harvesting thermal energy) would find a diode that could rectify AC having infrared frequency?
Frequency mixers for IR communications and data multiplexing.

user-000 said:
Could nanoscaled thermionic diodes be used for that?
No. One side of a thermionic diode is heated, and they have a space between the electrodes. The very small gap between electrodes would result in both electrodes getting hot.
 
Baluncore said:
Frequency mixers for IR communications and data multiplexing
So, if such diode is designed, will a breakthrough or a major progress be reached in these areas?
 
user-000 said:
So, if such diode is designed, will a breakthrough or a major progress be reached in these areas?
Probably not.
There are many ways of doing the same thing with optics or optoelectronics.
 
Thermionic diodes were tried for the lower microwave bands, mainly for measurement equipment, but were very insensitive. The main issue is transit time.
 

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