All Questions
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Are 'Terahertz-pulse lasers', like, 'Terahertz time-domain spectroscopy' and such, of Terahertz-frequency or trillion-pulses-per-second?
From Phys.org:
Light-controlled Higgs modes found in superconductors; potential sensor, computing uses.
The mode can be accessed and controlled by laser light flashing on the superconductor at ...
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Top hat laser beam
Could you obtain a Gaussian profile from a square tophat laser beam?
If yes what optics should be used?
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What reflective media do laser shows use?
I am having a hard time in finding out what exact light media laser shows use. I am trying to build a laser show myself. I know that the laser light is reflected off these particles in such a way that ...