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OSA Student Chapter Meeting


OPTICS NEWS
SPEAKER:Mariia Shutova
TITLE: Photoacoustic communications: delivering audible signals via absorption of light by atmospheric H2O
ABSTRACT:
Researchers have demonstrated that a laser can transmit an audible message to a person without any type of receiver equipment. The ability to send highly targeted audio signals over the air could be used to communicate across noisy rooms or warn individuals of a dangerous situation such as an active shooter.

Source: https://doi.org/10.1364/OL.44.000622



MAIN TALK
SPEAKER: Sean Blakley
TITLE: All-Optical Fiber Quantum Thermometry with Germanium-Vacancy Centers in Diamond
ABSTRACT:
Accurate, high spatial resolution thermal measurements have provided fundamental insights into many fields of study; however, existing thermometer technology often suffers from one or more limitations, such as low spatial resolution, low sensitivity, slow response time, or reliance on cumbersome equipment and invasive measurement techniques. In this work, the development of a high speed, highly accurate fiber-optic microthermometer employing exclusively optical interrogation of Germanium--vacancy quantum emitters in diamond is presented. This thermometer possesses a resolution and accuracy of approximately 20 mK and 700 mK respectively over a 1 Hz bandwidth with a spatial resolution of 50 um.




Friday, February 1 2019
IQSE 578, 12:30
Mitchell Physics Building


Department of Physics and Astronomy
Institute for Quantum Science and Engineering
Texas A&M University

(Pizza lunch as usual. Newcomers welcome!)

Host: Sean O'Connor