Strong Light-Matter Coupling Inside Micro-Patterned Fabry-Pérot Cavities
Cadmium selenide nanoplatelets (a two-dimensional variant of the quantum dot) are increasingly used in optical devices due to their bright and tunable emission characteristics.
However, to use these colloidal particles in practical photonic devices, the direct patterning of micron-scale features remains a grand-challenge.
Using thin-film fabrication and UV lithography tools inside the URnano cleanroom, we have been able to direct-write nanoplatelet patterns inside Fabry-Perot cavities with features as small as one micron, and show strong light-matter coupling with greater Rabi splitting than typically seen in this geometry due to stronger lateral electric field confinement.
The capability to create arbitrary patterns in nanoplatelet films will enable the fabrication of chiral meta-structures which opens up the possibility to observe and study chiral strong light-matter coupling and exciton-polariton photo-physics.
Optical Coherence Tomography for Choroid and Crystalline Lens Study during Accomodation
Myopia, the condition of the elongation of the eye, is an increasingly common visual condition that has the potential to cause a great deal of damage to the eye. While the development and effects of myopia have been studied to a great extent, the exact causes and effects of the condition on people have yet to be fully documented due to different reactions in subjects and variance across the visual systems of different people. As technology advances more detailed study into the exact mechanisms of how the eye accommodates is unlocked. This work details the design and assembly of an optical coherence tomography system integrated with a visual simulator that will be able to achieve higher resolution images (<2μm) than previous systems during active accommodation, which will unlock further study into how the choroid and crystalline lens adjust to the myopic eye.
Design of Edge Coupler for Red light (632.8nm) on Thin Film Lithium Niobate
Author: Tian Qiu, Qiang Lin Abstract Thin-film lithium niobate (TFLN) has recently emerged as a pivotal material platform for high-performance photonic integrated circuits (PICs), primarily due to its exceptional electro-optic…
Nonlinear Interactions of Classical Light to Mimic a Quantum Interferometer
This project investigates a classical nonlinear interferometer designed to mimic the halved fringe spacing of N00N state quantum interferometry.
Development of Two-Photon Polymerization Printed Calibration Targets for Light Sheet Microscopy
Lance Ulrich, Greg Schmidt, Evan James, Sarah Fess The Institute of Optics, University of Rochester Light sheet microscopy has revolutionized biological imaging by combining rapid acquisition with minimal photodamage. However,…
Spectroscopy of Laser Ablated Graphite and Aluminum
This project studies the effects of pulsed lasers on aluminum and graphite, and uses spectroscopy to analyze the contents of the created plasma.