4 ms·
Maybe they have some sort of thermally excited laser material and use hybrid electro/thermal lasers to "heat pump" waste heat back into the laser system.
by nick3443 2y ago
Maybe they have some sort of thermally excited laser material and use hybrid electro/thermal lasers to "heat pump" waste heat back into the laser system.
- pfdietz 2y agoThe entropy has to go somewhere. Laser beams carry no entropy.
- nick3443 2y ago10.1103/PhysRevLett.109.193601 K. Sandner and H. Ritsch, Physical Review Letters (2012); Temperature Gradient Driven Lasing and Stimulated Cooling
- pfdietz 2y agoNow tell me about all the waste heat such a scheme would generate. Yes, you can generate work from a temperature difference. You cannot convert that thermal energy to work with 100% efficiency.