Hellow guys, Welcome to my website, and you are watching He - Ne LASER | PRINCIPLE, CONSTRUCTION, WORKING, ENERGY LEVEL DIAGRAM OF HELIUM NEON LASER | NOTES. and this vIdeo is uploaded by Pankaj Physics Gulati at 2018-11-13T12:36:41-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.