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Few-ion imaging techniques

Grant number: 14/09369-0
Support Opportunities:Scholarships abroad - Research Internship - Doctorate
Start date: September 01, 2014
End date: February 28, 2015
Field of knowledge:Physical Sciences and Mathematics - Physics - Atomic and Molecular Physics
Principal Investigator:Luis Gustavo Marcassa
Grantee:Luís Felipe Barbosa Faria Gonçalves
Supervisor: Georg A. Raithel
Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Institution abroad: University of Michigan, United States  
Associated to the scholarship:11/22309-8 - Microstructures with cold Rydberg atoms, BP.DR

Abstract

Rydberg interactions have been guiding the recent researches, leading to an accelerated development of areas like quantum computation and matter-field interactions. A new technique that has been used for the detection of Rydberg atoms uses images that are the result of a direct projection of the atomic spatial distribution. This image is obtained after the ionization of the Rydberg atoms and subsequent projection onto micro-channel plates (MCP) that are coupled to a phosphor screen. We can currently capture images, but they lack the necessary spatial resolution and are only visible when using large numbers of ions (10^3~10^4). The goal of the current project is to learn how to acquire images created from only a few ions. These techniques have been successfully implemented in Prof. Raithel's research group, so a collaboration with him represents a major point of success for our project. (AU)

News published in Agência FAPESP Newsletter about the scholarship:
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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CHEN, YUN-JHIH; GONCALVES, LUIS FELIPE; RAITHEL, GEORG. Measurement of Rb 5P(3/2) scalar and tensor polarizabilities in a 1064-nm light field. Physical Review A, v. 92, n. 6, . (14/09369-0)
GONCALVES, LUIS FELIPE; THAICHAROEN, NITHIWADEE; RAITHEL, GEORG. Motion of Rydberg atoms with strong permanent-electric-dipole interactions. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, v. 49, n. 15, . (14/09369-0)
THAICHAROEN, N.; GONCALVES, L. F.; RAITHEL, G.. Atom-Pair Kinetics with Strong Electric-Dipole Interactions. Physical Review Letters, v. 116, n. 21, . (14/09369-0)