Can I switch from MSc biomedical physics to PhD in atomic or laser physics?

[Lizwi]

After Msc in biomedical Physics, can I switch to PhD in Atomic or laser.
If not, do I need to start a new Msc in laser or atomic to do PhD in these fields.

 

[Vanadium 50]

You asked this before: https://www.physicsforums.com/showthread.php?t=684815

Please continue to use that thread.