Accession Number:

ADA523323

Title:

Operation and On-Chip Integration of Cavity-QED-Based Detectors for Single Atoms and Molecules

Descriptive Note:

Final rept. Dec 2006-Nov 2009

Corporate Author:

CALIFORNIA UNIV BERKELEY DEPT OF PHYSICS

Personal Author(s):

Report Date:

2010-05-01

Pagination or Media Count:

6.0

Abstract:

A new experimental platform for studies of transport and quantum-limited measurements of cold, trapped atomic gases was constructed. Using microfabrication processes, a silicon wafer was micromachined to allow for deposition of micrometer-scale electromagnet wires and for the integration of closely spaced, highly reflective optical mirrors. With this device, nanokelvin-temperature atomic gases were produced and placed with nanometer precision within a high-finesse optical resonator, and to construct a cavity optomechanical system with ultracold atomic gases, with the goals of understanding how to conduct quantum-limited measurements of the motion of a macroscopic mechanical object and characterizing the new phenomena arising in such a hybrid optomechanical quantum system. Key results include the tuning between linear and quadratic optomechanical regimes, allowing one to measure either the displacement or the strain of a compressible cantilever the first characterization of optomechanical effects in the quadratic coupling regime and quantitative matching between experimental observations and simple theoretical predictions that establish the validity of this innovative use of cold atomic gases.

Subject Categories:

  • Miscellaneous Detection and Detectors
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE