A mirror on one side of the laser's optical material reflects the photon back toward the electrons in laser sail for sale. The "cavity," or space between mirrors, is made to allow the photon to be recycled back into the medium, 

Sailboats.co.uk

01604 969268 

Website : https://sailboats.co.uk/collections/sailboats-chandlery-sail-maintenance

Address : Spinney View,Stonecircle Road,Northampton NN3 8RF

Email : [email protected]

Facebook - https://www.facebook.com/Sailboats.co.uk/

x.com - https://x.com/SailboatsUK/

Instagram - https://www.instagram.com/sailboatscouk/