OSA-RS Speaker Series: Annual Graduate Student Talks

  • March 26, 2019
  • 7:00 PM
  • Laboratory for Laser Energetics - East Lobby 240 East River Road, Rochester, NY, 14623


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Graduate Student Talks from University of Rochester and Rochester Institute of Technology

This week two graduate students split the presentation time with talks on exciting current research.

Robert Pettit, University of Rochester

Toward coherent vibrations on the mesoscale with levitated optomechanics

Optomechanical systems are currently being developed to study foundational questions in quantum mechanics and to push the limits of precision metrology. While the traditional picture of an optomechanical system utilizes an optical cavity with a movable mirror, recent efforts have been made to build a platform that does not rely on a cavity-based architecture. Here a cavity-free optomechanical system using an optically levitated nanoparticle is presented. Using this platform, a phonon laser is developed that can provide a pathway toward a coherent source of phonons for mesoscale levitated objects.

Pettit is a 6th year graduate student in Optics in the lab of Professor Nick Vamivakas at the University of Rochester

Baabak Mamaghani, Rochester Institute of Technology

Sensor Characterization and Calibration

This presentation discusses the importance of calibrating and characterizing sensors. To illustrate this importance, the MicaSense calibration method (with vignette correction, dark level bias, and application of radiometric calibration coefficients) will be discussed and applied to a set of MicaSense RedEdge-3 and RedEdge-M images. The resulting errors from the MicaSense calibration method in both the radiance and reflectance domain will be shown. In addition, laboratory experiments for calibration of MicaSense and other sensors will be discussed.

Mamaghani graduated with his BS/MS dual degree from the Electrical Engineering department at RIT in 2014. He is currently a 3rd year PhD student at the Center for Imaging Science in the lab of Dr. Carl Salvaggio. He is working on calibration of small unmanned aircraft system (sUAS) imagery.

Pre-talk dinner with guest speakers Robert Pettit and Baabak Mamaghani will be held at 5:00 PM at Sticky Lips BBQ, 830 Jefferson Rd Rochester NY 14623, prior to the talk. Contact the House Committee by email for dinner reservations. Email: house@osarochester.org
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