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y33t
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Assume you have a sinusoidal 500THz function generator and assume you have a compatible antenna. If you feed the signal to your antenna, is optical phenomena observable ?
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y33t said:Assume you have a sinusoidal 500THz function generator and assume you have a compatible antenna. If you feed the signal to your antenna, is optical phenomena observable ?
Bobbywhy said:In this experiment a generator capable of emitting electromagnetic radiation at 500THz would be a laser: probalby either a gas or solid-state laser. Without calculation we can say that since 474 THz is the optical frequency of a helium-neon laser, then the 500Thz would appear to the human eye red.
Bobbywhy said:y33t, sorry, I jumped to some conclusion. This is from Wikipedia:
"Terahertz radiation is a region of the spectrum between far infrared and microwaves. Until recently, the range was rarely studied and few sources existed for microwave energy at the high end of the band (sub-millimeter waves or so-called terahertz waves), but applications such as imaging and communications are now appearing. Scientists are also looking to apply terahertz technology in the armed forces, where high-frequency waves might be directed at enemy troops to incapacitate their electronic equipment. [15]
http://en.wikipedia.org/wiki/Electromagnetic_spectrum
[15] The interaction between high-intensity, ultra-short laser pulses and plasmas leads to the emission of coherent, short-pulse radiation at terahertz frequencies. A device is developed that can use the short-pulse radiation at terahertz frequencies to deactivate any electronic systems many miles away and create a virtual shield for any advancing army, navy or air force.
http://www.indiadaily.com/editorial/1803.asp
What is an appropriate size...?y33t said:No that's not why I meant.
Time-varying electric currents flowing through a conductor radiates electromagnetic fields at the same frequency. If a 500THz function generator (electrical signal output) is fed to a conductor at appropriate size, can human eye observe the emission ?
y33t said:No that's not why I meant.
Time-varying electric currents flowing through a conductor radiates electromagnetic fields at the same frequency. If a 500THz function generator (electrical signal output) is fed to a conductor at appropriate size, can human eye observe the emission ?
russ_watters said:What is an appropriate size...?
Drakkith said:I would think so. But such a setup is not possible with current technology. The frequency is much too high.
y33t said:What would be the interpretation from wave-particle duality approach in this phenomena ? Will there be photons ?
Drakkith said:What? Why wouldn't there be? There are always photons if an EM wave is generated.
You cannot observe details of a ~500nm-antenna with visible light of 500nm wavelength, at least not without fancy metamaterials which would probably change the way the antenna emits light in a significant way.will it glow homogeneously through the antenna length ?
mfb said:You cannot observe details of a ~500nm-antenna with visible light of 500nm wavelength, at least not without fancy metamaterials which would probably change the way the antenna emits light in a significant way.
You will see a spot of light, even with the best microscopes.
A 500THz generator is a device that produces electromagnetic waves with a frequency of 500 terahertz (THz). This frequency range falls within the optical spectrum, meaning it produces light waves that are invisible to the human eye.
A 500THz generator works by converting electrical energy into high-frequency electromagnetic waves. It typically uses a laser as the source of energy and uses a nonlinear crystal to increase the frequency of the light waves to 500THz.
A 500THz generator has many applications in the field of optics and photonics. It is used in spectroscopy, microscopy, and imaging techniques to study the properties of materials at a molecular level. It is also used in telecommunications for high-speed data transmission.
Yes, a 500THz generator is generally safe to use. The light waves it produces are within the non-ionizing range, meaning they do not have enough energy to cause damage to cells. However, it is always important to follow safety precautions and use proper protective gear when working with any type of electromagnetic radiation.
In recent years, there have been significant advancements in 500THz generator technology. Researchers have been able to increase the power and stability of these generators, making them more suitable for various applications. Additionally, there have been developments in compact and portable 500THz generators, making them more accessible for research and industrial use.