Right. It's allowed too pass light one way but absorb it the other. A
3-port microwave circulator does that:A --> B
B --> C
C --> A
which becomes an AtoB isolator if you terminate C.
John
Oops! The reflective properties vs film thickness was what I was thinking of. But, I now remember that it was not total reflection at all frequencies.
Sorry to get you excited :-)
John S
"Become opaque to".
It seems it is I that must spell things out!
... and therefore a true one-way mirror does not exist.
-- John Devereux
May i spell something out: light is a form of energy. Do with it whatever you want and you will find no violation of conservation of energy - no increase as you incorrectly implied.
Intelligence at last!
I do not think that the term "absorb" is correct..
OK, what is the correct term?
John
Choose: (a) reflect, (b) convert to another form of energy like heat as an example, (c) both.
(b) = absorb. As in "absorbtive filter"
John
I think the principle that a one-way mirror violates is thermodynamic (radiant heat transfer cannot be made one-way). I've got the Feynman book, where is this treated there?
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.