项目标书摘要：I am currently preparing a manuscript which summarizes the results for hybrid cavities consisting of multiple 2D material flakes.I investigated the 2D materials and photonic crystal waveguide hybrid devices.I prepared photonic crystal waveguides using nanofabrication facilities at the University of Tokyo,while the 2D materials are prepared via mechanical exfoliation of bulk crystals.Onto these photonic crystal waveguides,I then transfer 2D materials such as hBN,WSe2 and MoTe2 in order to form a heterocavity on the waveguides.By performing photoluminescence and transmission measurements,I verified the formation of cavities on the prepared samples consistent with expectations based on simulation results.I also investigated heterostructures consisting of multiple 2D materials flakes stacked on the waveguides,observing the optical coupling between the flakes and the cavity-waveguide system.I intend to explore further properties and functionalities of the cavities with multiple 2D material flakes.In addition,I would also like to investigate different nanophotonic structures for coupling to 2D material such as the grating photonic crystal cavities which support air mode cavities with the potential for stronger coupling to emitters placed on its surface.Reason:I am currently preparing a manuscript which summarizes the results for hybrid cavities consisting of multiple 2D material flakes。Outline of Research at the Start:We propose a novel hybrid cavity,in which a suitably-sized 2D materials flake is combined with a photonic crystal waveguide post-fabrication.Through this approach,we aim to demonstrate high Q cavity formation,low threshold optically excited lasing,and eventually electrically pumped lasing。
