NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Semiclassical Theory of Photon Echoes with Application to Pr:YSO
Published
Author(s)
Zachary H. Levine
Abstract
Coherent states are used to prepare a crystal using the Atomic Frequency Comb protocol for quantum memory. Here, semiclassical theory is developed and compared to experimental photon echoes of a coherent pulse.
Levine, Z.
(2021),
Semiclassical Theory of Photon Echoes with Application to Pr:YSO, Frontiers in Optics, Conference Proceedings 2021, Washington, DC, US, [online], https://doi.org/10.1364/FIO.2021.JW7A.23, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=932892
(Accessed October 13, 2025)