Na próxima terça-feira (9), a partir das 14 horas, acontece no auditório do Departamento de Física o Seminário de Óptica, cujo tema é “Subharmonic resonances in high-order wave mixing in the quantized atomic motion in a one-dimensional optical lattice”. O seminário será ministrado por Jesus Lopez, doutorando do Programa de Pós-Graduação em Física da UFPE e, apesar do título em inglês, a apresentação será em português.

Resumo

We report on the observation of subharmonic resonances in high-order wave mixing associated with the quantized vibrational levels of atoms trapped in a one-dimensional optical lattice. These subharmonic resonances, occurring at ±1/2 and ±1/3 of the frequency separation between adjacent vibrational levels, are observed through phase-match angularly resolved six- and eight-wave mixing processes. Moreover, we also demonstrate that these induced high-order coherences can be stored in the medium and the associated optical information retrieved after a controlled storage time.