Sciencemadness Discussion Board

An LED which radiates no thermal/infrared

SM2 - 7-11-2012 at 12:45

It would have to be something else other than a diode/gate. Can't run on electrons, even if conductors AND SUBSTRATE are superconductive. Even if they grew perfect crystals in space. What might that something else be? Just like an LED, running as if continuous wave, no q-switching. Ultra high output does not damage the device, as the efficiency is ideal or near so. Just curious if there's anyone out there with such an interest, and if so, plz suggest some very modern...

Wizzard - 7-11-2012 at 12:53

Impossible. All objects above 0*K emit thermal, in some amount.

What would be the need of a device which fits this bill?

SM2 - 7-11-2012 at 13:22

don't be duped by the widely held belief, that 0 Kelvin is only ideal.
I agree with even state of art science, that is the apparent case.

Uses? Very HI, efficient illumination with various dual/use applications.

HI as in HID

IrC - 8-11-2012 at 14:44

I should start calling my Gunn diodes MED's?

franklyn - 13-11-2012 at 14:40

" What might that something else be ? "

- imaginary


" various dual/use applications "

- an invisibility shroud
http://www.sciencemadness.org/talk/viewthread.php?tid=6353


" 0ยบ Kelvin is only ideal "

Black body radiation need only match it's background to be indistinguisable.
If it is less it would appear as a cold region , unless it is also completely
transparent without refracting. See first comment.

.