Atomic Response to Composite Light Fields
Abstract
Approach: The performer will exploit ARP for additional purposes, evaluate laser cooling without spontaneous emission for atoms other than He, design an experiment to study optical transitions with (E2 transitions), and measure the absolute efficiency of STIRAP for Rydberg excitation. They propose experimental investigation of the optical force implemented by ARP to determine its capabilities in a parameter range outside of the traditionally accepted region. They especially would like to measure its velocity dependence because this is of primary importance in laser cooling. Optical forces in non-monochromatic light such as that from adiabatic rapid passage or the bichromatic force derive from purely stimulated processes, and their velocity dependence derives from non-adiabatic processes that do not depend on spontaneous emission. They propose continuation of their present experiments along these lines. In addition, they will continue to study the use of optical vortex beams to deliver the extra #h of angular momentum needed for E2 transitions. Last, they have developed a rigorous measure of the absolute efficiency for STIRAP excitation of Rydberg states via a two step process, and plan to test it on the excitation of Rydberg states of He. Objective: The advancement of the state of knowledge about atomic behavior in light fields can provide the basis for further development of clocks and time standards, gyroscopes, and other instrumentation of interest to the Navy. Naval Relevance: The performer will work to provide advanced capabilities for navigation, communication, weaponry, optical miniaturization, time and frequency standards.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 12, 2016
- Source ID
- N000141512174
Entities
People
- Harold Metcalf
Organizations
- Office of Naval Research
- Research Foundation for the State University of New York
- United States Navy