School of Science Department of Physics 64 Development of Monitoring and Controlling Devices for Quantum Simulators Supervisor: JO Gyu Boong / PHYS Student: CHEN Xinpeng / PHYS-IRE Course: UROP 2100, Fall We introduce a relatively new method to produce a flat-top light using the spatial light modulator (SLM). Continuing the last report, we first adopt the affine transformation to find the accurate coordinate transformation between the SLM and camera planes. Then, a feedback algorithm is utilized to try to eliminate the fringes. However, fringes do not disappear or become darker as expected. As a result, other methods are tested to see whether they can help eliminate the fringes so that the flap-top light pattern can be good enough. The light path for the experiment. High-Quality Two-Dimensional Heterostructural Device: From Materials Synthesis to Device Fabrication Supervisor: LEI Shiming / PHYS Student: CHEN Jiaye / PHYS Course: UROP 1000, Summer This UROP report explores 2D materials, focusing on graphene and hexagonal boron nitride (h-BN), essential for integrated devices, guided by David J. Moss’s insights on 2D integration with PC-PPC stamps. I developed a four-step method to fabricate high-quality PC-PPC stamps and mastered h-BN exfoliation using blue tape, producing large, thin layers suitable for advanced applications. Challenges include unmeasured thicknesses due to my lack of atomic force microscopy (AFM) experience and no hands-on device assembly in a glovebox. Future objectives include mastering AFM and SQUID, learning to exfoliate onto plasma silicon substrates, and researching unexplored 2D materials to drive innovative device technologies. This work establishes a solid foundation for advancing nanotechnology, with potential to enhance material integration.
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