Mirror-assisted backscattering interferometry to measure the first-order correlation function of the light emitted by quantum scatterers

Autor(es)

Dias, P. G. S. ^[1] ; Frometa, M. ^[2] ; Magnani, P. H. N. ^[1] ; Theophilo, K. R. B. ^{[2, 3]} ; Hugbart, M. ^[4] ; Courteille, Ph W. ^[2] ; Celistrino Teixeira, R. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Dept Fis, Rod Washington Luis, Km 235, SP 310, Sao Carlos, SP - Brazil

^[2] Univ Sao Paulo, Inst Fis Sao Carlos, CP 369, BR-13560970 Sao Carlos, SP - Brazil

^[3] ICFO Inst Photon Sci, Mediterranean Technol Pk, Castelldefels 08860, Barcelona - Spain

^[4] Univ Cote Azur, CNRS, INPHYNI, F-06560 Valbonne - France

• Tipo de documento: Artigo Científico
• Fonte: Physical Review A; v. 104, n. 5 NOV 22 2021.
• Citações Web of Science: 0

Resumo

We present a method to obtain the first-order temporal correlation function, g((1))(tau), of the light scattered by an assembly of pointlike quantum scatterers, or equivalently its spectral power distribution. This method is based on the mirror-assisted backscattering interferometric setup. The contrast of its angular fringes was already linked to the convolution of g((1))(tau) for different Rabi frequencies taking into account the incoming spatial intensity profile of the probe beam, but we show here that by simply adding a half wave plate to the interferometer in a specific configuration, the fringe contrast becomes g((1))(tau) of the light scattered by atoms, which are now all subjected to the same laser intensity. This method has direct application to obtaining the saturated spectrum of quantum systems. We discuss some nontrivial aspects of this interferometric setup and propose an analogy with a double Mach-Zehnder interferometer. (AU)

• Processo FAPESP: 13/07276-1 - CEPOF - Centro de Pesquisa em Óptica e Fotônica
• Beneficiário: Vanderlei Salvador Bagnato
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs
• Processo FAPESP: 18/23873-3 - Transporte coerente de luz em amostras atômicas densas
• Beneficiário: Raul Celistrino Teixeira
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores