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Photonics Group

Faculty

Luís Gustavo Marcassa

Full Professor


PhD in Physics (1995 - USP Brazil)
Postdoc at University of Michigan (1996 USA)
Postdoc at MIT (2005 USA)

Research areas

    • Cooling and trapping atoms
    • Cold Collisions
    • Cold Molecules
    • Cold Rydberg Atoms
    • Spectroscopy Applied to Agriculture

My research goal is to understand interaction among cold trapped atoms. Such studies are performed using cold Rydberg atoms as well as heteronuclear atomic samples in optical dipole traps. In the Rydberg experiment, long range potentials are responsible for state population transfer. By studying such process, we may obtain information on the potentials. In the heteronuclear sample experiment, our goal is to photoassociate KRb molecules and trap them in an optical dipole trap. We are apply spectroscopy techniques to agriculture problems.

Selected publications

Observation of Climacteric-Like Behavior of Citrus Leaves Using Fluorescence Spectroscopy

CAIO B. WETTERICH, EMERY C. LINS, JOSÉ BELASQUE JR., AND LUIS G. MARCASSA

Journal of Spectroscopy, Volume 2014, Article ID 841450, (2014)


Two-body Förster resonance involving Rb nD states in a quasi-electrostatic trap

JORGE M. KONDO, LUIS F. GONÇALVES, JADER S. CABRAL, JONATHAN TALLANT, AND LUIS G. MARCASSA

Physical Review A 90, 023413 (2014)


Interactions in Ultracold Rydberg Gases

LUIS G. MARCASSA, JAMES P. SHAFFER

Advances in Atomic, Molecular, and Optical Physics, Volume 63, Chapter 2, 48 (2014)


Role of multilevel Rydberg interactions in electric-field-tuned Forster resonances

JORGE M. KONDO, DONALD BOOTH, LUIS F. GONÇALVES, JAMES P. SHAFFER, AND LUIS G. MARCASSA

PHYSICAL REVIEW A 93, 012703 (2016)


Excitation of high orbital angular momentum Rydberg states with Laguerre–Gauss beams

J D RODRIGUES, L G MARCASSA AND J T MENDONÇA

J. Phys. B: At. Mol. Opt. Phys. 49, 074007 (2016)