LASERLight Amplification by the Stimulated Emission of Radiation

Monochromatic (one color) coherent (same frequency, in phase) light

Interference and diffraction

Light falling on two slits will produce an interference pattern(Young’s two-slit experiment)

Interference and diffraction

Light falling on two slits will produce an interference pattern(Young’s two-slit experiment)

x = how far apart (bright spots) areL = distance from slits to screend = distance between slits, wires on a mesh, tracking grooves on a CD, thickness of a human hair

Using a set distance from the wall (L), measure the distance between dots (x) and calculate d

x/ L = /d

Rubric

Teamwork 20Wire mesh

Brief description of experiment 5Data and calculations 10Sketch of dot pattern 5

CDBrief description of experiment 5Data and calculations 10Sketch of dot pattern 5

Human hairBrief description of experiment 5Data and calculations 10Sketch of dot pattern 5

ConclusionSummary of overall results 10 Visually pleasing, includes photos and/or pictures 10