Helium neon laser is a type of gas laser in which a mixture of helium and neon gas is used as a gain medium. Of course, no light source generates perfect planewaves. Recently optics courses have been implemented at the high school of the unam. Ap304 laser laboratory course, lab 2b the heliumneon. Pdf biological effects of heliumneon laser irradiation on normal. Properties of the hene laser carolyne pickler, neil edelman february 27, 2007 abstract the properties of the helium neon laser were determined using a computer controlled experiment. Forty simple experiments with an hene laser for high. An hene laser works by exciting neon atoms in the gas.
The first will be a direct measurement of the wavelength of the 6328angstrom radiation from a helium neon laser. Helium neon laser 1 introduction the helium neon laser, short hene laser, is one of the most common used laser for allignement, reference laser and optics demonstrations. Fushitani 1 introduction we will do the experiment using the he ne laser. To learn about our use of cookies and how you can manage your cookie settings, please see our cookie policy. Theoretical and experimental study of intensity branch phenomena in selfmixing interference in a he ne laser article in optics communications 2214. Hene laser tube has very small length approximately from 10 to 100cm and best life time of 20. Barbora smolkova mariia uzhytchak anna lynnyk oleg lunov. Forty simple experiments with an he ne laser for high school students. Download limit exceeded you have exceeded your daily download allowance. Repeated the experiment thrice and took the average value of wavelength results from computer s coal101 at university of gujrat lahore campus. The helium neon laser ap304 laser laboratory course, lab 2b 1 a short introduction to helium neon lasers the invention of the helium neon laser hene by javan 1 followed ted maimans success in operating the rst laser even within just a few months. It also has lasing transition in ir, orange and green. Experiment 8 1 the michelson interferometer and the he ne laser physics 2150 experiment 8 university of colorado introduction in the experiment, two different types of measurements will be made with a michelson interferometer. The laser s spatial intensity distribution was found to follow an approximate gaussian distribution, which indicates tem00 mode.
A 35mw con tinuous wave hene laser spectra physics 127. Creating a cavitydumped helium neon laser stony brook laser. A gas laser is a type of laser in which a mixture of gas is used as the active medium or laser medium. Hene laser can produce three wavelengths that are 1. For these courses, the school purchased commercial optics kits to develop illustrative and simple experiments. Ttiis book describes a series of experiments that may be carried out using a heliumneon laser and apparatus generally found i, an undergraduate physics. Theoretical and experimental study of intensity branch. While maimans experiments with the ruby laser were based on schawlow and townes. Essentially all commercial hene lasers operate in the steady state continuous wave cw. By closing this message, you are consenting to our use of cookies. Repeated the experiment thrice and took the average value. The combined pressure of the two gases is approximately 1 torr 1760 atmospheres. A he ne laser consists of a hollow tube filled with 90 percent he and 10 percent ne gases and fitted with inwardfacing mirrors at the ends of the cavity.