Self-Contained Dye Laser Cavity for UV Sunscreen Absorbance Testing

Ryan Bell

...is receiving his Bachelor's of Science in Photonics Science and Engineering from the University of Central Florida. He is searching for jobs in the medical application of optics and photonics in central Florida. He is a member of BCM.

Berny Zamora

...is a 33-year-old Electrical Engineering student in the Power and Renewable Energy Track. Berny wants to pursue a career in the area of power distribution systems.

John Ephraim

...is receiving his BSEE from the University of Central Florida. He is awaiting responses from employers. He plans to attend graduate school. He plans to research electric motors and renewable technology. His extracurricular activities include studying mathematics and writing computer code.

Project Goal

Our project was initially supposed to be an independent laser system that could be used for UV sunscreen absorption testing. We wanted to make our device very easy to use compared to standard dye lasers and solar simulators. We wanted to make it light, cordless, and small. We wanted it to not need bulky dye jet systems, and to sample its own wavelength and power so that the user wouldn't have to. We wanted the dye cavity to be small, simple, swappable, and refillable for when the dye would bleach, or for when the user would want to emit a different wavelength. In the end, we were not able to incorporate much of this design, however. Our system is now a module that one could add to the front of a pre-existing visible laser and use it as a spectroscope, visible-to-UV converter, and sampling power meter. With the UV output, you could test sunscreen absorbance like we initially designed our system to work for. Additionally, anything else you might need a UV laser for, you would have one at the ready.

D&C

SD1 Design Document

SD2 Design Document

Final Presentation

Demo Video

Optical Power Demo Video

Final Presentation Slides

CDR Slides

Conference Paper