How can we amplify ultrasound? Any suggestion?

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Aleksandr A. Tarasov

Yes, it is possible. Key word for Google search is SASER

Kazim Emre Karasahin

Very interesting information can be found under this link, which reveals that saser technology is going to bring a lot to our lives in the near future:

http://www.livescience.com/3705-sasers-sound-based-lasers-invented.html

Silas Chen

Thanks everybody. It seems SASER amplifies single frequency photon wave, not for ultrasound with large bandwidth. By the way, the generated ultrasound has a frequency as high as GHz~THz. Is it possible for lower frequency signal such as MHz level?

Raju Thapa

i am not so sure how much useful it will be. hope it will be useful

https://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwjbyIujlJrUAhXJqo8KHXxPCPcQFgguMAE&url=https%3A%2F%2Fwww.electronicspoint.com%2Fthreads%2Famplify-ultrasound-signal.248002%2F&usg=AFQjCNFfdCtCEwmHGPdyC4bi5u9s1lwAxA&sig2=s9EM3HHnNXO9IF62UjYffA

https://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&uact=8&ved=0ahUKEwjbyIujlJrUAhXJqo8KHXxPCPcQFgg1MAI&url=http%3A%2F%2Fwww.nature.com%2Fnews%2Fultrasound-fingerprint-scanners-amplify-security-1.17904&usg=AFQjCNHA7O1TTp1pQoxSvRlvwB52bhQ9Ng&sig2=XoJGjzLYTFeJGnGsfnNFRg