Helium-Neon Laser
Reference Source:
[1] Wikipedia Contributors. “Helium–Neon Laser.” Wikipedia, Wikimedia Foundation, 2 May 2021, en.wikipedia.org/wiki/Helium%E2%80%93neon_laser. Accessed 31 Aug. 2021.
[2] Eduphile. “He Ne Laser (Hindi).” YouTube, 26 Aug. 2020, www.youtube.com/watch?v=be8VMm2hDAo. Accessed 31 Aug. 2021.
[3] Helium-Neon Laser – Engineering Physics Class. “Helium-Neon Laser – Engineering Physics Class.” Google.com, 2015, sites.google.com/site/puenggphysics/home/unit-i/helium-neon-laser. Accessed 31 Aug. 2021.