Title

Characterization of Laser-Cooled Atomic Samples

Presenter Information

Katrina Compton

Department

Physics

Major

Physics

Research Advisor

Fischer, Daniel

Advisor's Department

Physics

Funding Source

OURE

Abstract

Laser cooling techniques, developed in the 1980s, are routinely used in labs and allow scientists to trap and cool atoms to near absolute-zero temperatures. This research project aims to understand the characteristics of ultra-cooled lithium-7 samples in three different trapping schemes. First, a Magneto-Optical Trap (MOT) is the most common type of atom trap which utilizes a magnetic field and three pairs of mutually perpendicular, counter-propagating laser beams. Second, an All-Optical Trap (AOT), developed over the last two years by the MST team, is an advanced trapping scheme that does not rely on a magnetic field. Last, an Optical Dipole Trap (ODT) which allows for temperatures several magnitudes lower than what can be achieved with the other two trapping schemes. Characterization methods are based primarily on fluorescence and absorption imaging to obtain information about temperature, particle density and polarization.

Biography

Katrina Compton is currently earning her undergraduate degree in physics from MST. This is her second research project in the physics department and in 2018, she worked in Dr. Fischer's lab as a First Year Research Opportunity (FYRE) program participant.

Research Category

Sciences

Presentation Type

Poster Presentation

Document Type

Poster

Award

Sciences poster session, Third place

Location

Upper Atrium

Presentation Date

16 Apr 2019, 9:00 am - 3:00 pm

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Apr 16th, 9:00 AM Apr 16th, 3:00 PM

Characterization of Laser-Cooled Atomic Samples

Upper Atrium

Laser cooling techniques, developed in the 1980s, are routinely used in labs and allow scientists to trap and cool atoms to near absolute-zero temperatures. This research project aims to understand the characteristics of ultra-cooled lithium-7 samples in three different trapping schemes. First, a Magneto-Optical Trap (MOT) is the most common type of atom trap which utilizes a magnetic field and three pairs of mutually perpendicular, counter-propagating laser beams. Second, an All-Optical Trap (AOT), developed over the last two years by the MST team, is an advanced trapping scheme that does not rely on a magnetic field. Last, an Optical Dipole Trap (ODT) which allows for temperatures several magnitudes lower than what can be achieved with the other two trapping schemes. Characterization methods are based primarily on fluorescence and absorption imaging to obtain information about temperature, particle density and polarization.