This experiment explores the polarization, spatial and temporal coherence of the output of a He-Ne laser, as well as the basic conditions for laser action. Charles Townes (Nobel Prize 1964) and Arthur L. Schawlow (UofT BSc 1941, UofT PhD 1949, Nobel Prize 1980) invented the laser in 1958.

helium-neonlaserpdf

JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser.

The 4228 is a 3.9 mil thick polyolefin fiber optic laser film. It has an adhesion strength of 10.5 oz/in, and an impressive tensile strength of 33lb/in. With an elongation capability of 700%, this black/grey film exhibits remarkable flexibility, enabling it to conform to diverse contours and shapes. Designed specifically for fiber optic and CO2 laser applications, the 4228 features a distinctive blue print. It proves to be an excellent choice for high-speed metal laser cutting, ensuring no blow-off and no burring, while also facilitating easy removal due to its high tack. This film is well-suited for materials such as stainless steel, zinc, aluminum, and pre-coated metals. Additionally, the film comes with a 6-month outdoor guarantee, making it reliable for various applications. Classified as a process film, it excels in both laser fiber and laser CO2 processes, providing low noise and easy unwinding functionality.

3rd year Arts and Sciences undergraduate and Varsity Blues volleyball player, Anastasia Danilova, working on an earlier version of the Helium-Neon Laser.