Presentation Year

2016

Depreciated Participant

Benjamin DalyPhysics and AstronomyUndergraduate Student

College or Department

Short Description of your Research or Creative Project (700 characters or less)

At Humboldt State University, a group of undergraduate students and faculty have been investigating the effects of gravity at very short distances. Due to the need to measure very small amounts of motion during these experiments, a separate group of students and faculty have been designing an optical system to measure very small rotational movement, down to the sub-milliradian scale. This system, a modified Michelson interferometer, utilizes the optical path length difference of two branches of a split laser beam to measure almost imperceptible rotations of a mirror by observing constructive and destructive interference of the two branches.

Permission to Publish Work

Yes

Node ID

140

Page Classification