689729 event 1776168376 1776168391 <![CDATA[Ph.D. Proposal Oral Exam - Jiacheng Wang]]> Title:  A Hybrid Atomic Mems Platform for Miniature Atomic Beam Devices and Applications

Committee:

Dr. Ayazi, Advisor

Dr. Ghalichechian, Chair

Dr. Raman

]]> The objective of the proposed research is the design, fabrication, characterization, and integration of a hybrid MEMS–atomic beam platform for fully integrated chip-scale atomic beam devices. The work addresses a key limitation in current atomic clock and quantum sensor technologies, namely the reliance on manual assembly and bulk optical components, which constrain scalability, increase cost, and limit manufacturing yield. The proposed approach introduces a wafer-level fabricated, piezoelectrically actuated micromirror capable of achieving a precisely controlled 45° tilt with high optical reflectivity. This micromirror is integrated with a microfabricated silicon collimator to realize a planar atomic beam architecture. By eliminating the need for buffer gas, the system enables nearly transit-time-limited linewidths, improving long-term stability while mitigating drift mechanisms associated with buffer gas interactions.

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