Take the 2-minute tour ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free, no registration required.

Recently, I read an article on time reversed laser. I don't know why they call it a time reversed. I have a doubt that why they use two laser in the device. And what is an anti-laser? The device absorbs the particular frequency of light which means some energy is lost. What happens to the lost energy?

share|improve this question
@dmckee: I think we can't close the question as a duplicate of the third one ;-) –  Waffle's Crazy Peanut Apr 9 '13 at 17:27

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.