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Susan Schima (Fed)

Susan Schima is a Fabrication Engineer in the Atomic Devices and Instrumentation Group at NIST, where she has pioneered cleanroom fabrication techniques to adapt standard cleanroom processing to large-thickness wafers. These large-thickness wafers are used to create the vessels that contain atomic vapors and are the foundation of most of the miniature quantum devices created in her Group, such as high-precision atomic clocks, magnetometers and gyroscopes. In addition to cleanroom work, Susan is committed to maintaining the health of NIST by upholding safety practices and encouraging the influx of early-career new hires as Co-Director of the Summer Undergraduate Research Fellowship program. She received her BS from the New Mexico Institute of Mining and Technology in 1991 and her MS from the University of Arizona in 1994.

Awards

  • 2024 Colleagues' Choice Award
  • 2024 PML Internal Award for Excellence in Cooperation, Collaboration, and Teamwork

Publications

Wafer-scale fabrication of evacuated alkali vapor cells

Author(s)
Yang Li, Matthew Hummon, Susan Schima, John Kitching, DONGGYU SOHN
We describe a process for fabricating a wafer-scale array of alkali metal vapor cells with low residual gas pressure. We show that by etching long, thin

Ultrastable vacuum-gap Fabry-Perot cavities 2 operated in air

Author(s)
Susan Schima, Franklyn Quinlan, Yifan Liu, Charles McLemore, Takuma Nakamura, Nazanin Hoghooghi, Scott Diddams, Peter Rakich, Dahyeon Lee, Naijun Jin, Megan Kelleher, Haotian Cheng
We demonstrate a vacuum-gap ultrastable optical reference cavity that does not require a vacuum enclosure. Our simple method of optical contact bonding in a

Next-Generation Chip-Scale Atomic Clocks

Author(s)
John Kitching, Matthew Hummon, William McGehee, Ying-Ju Wang, Susan Schima
We describe work toward the development of next-generation chip-scale atomic clocks, which combine small size, low power consumption and manufacturability with

Atomic flux circuits

Author(s)
Douglas Bopp, Ellyse Taylor, Khoa Le, Susan Schima, Matthew Hummon, John Kitching
Atomic vapors are a crucial platform for precision metrology but in their simplest implementation, a thermal vapor, the intrinsic optical resonances are

Chip-scale atomic diffractive optical elements

Author(s)
Liron Stern, Douglas G. Bopp, Susan A. Schima, Vincent N. Maurice, John E. Kitching
Atomic systems have long provided a useful material platform with unique quantum properties. The efficient light-matter interaction in atomic vapors has led to
Created July 30, 2019, Updated March 10, 2025