Photon number squeezing enhanced by two-photon process in excitonic systems
1997; Elsevier BV; Volume: 138; Issue: 1-3 Linguagem: Inglês
10.1016/s0030-4018(97)00084-9
ISSN1873-0310
AutoresHiromi Ezaki, G. S. Agarwal, Eiichi Hanamura,
Tópico(s)Strong Light-Matter Interactions
ResumoWe demonstrate quenching of pump noise by two-photon resonant absorption in a cavity under competition with the one-photon process. This quenching leads to strong squeezing of photon number fluctuation, thus converting a largely super-Poissonian field into a sub-Poissonian one. A strong candidate as an appropriate medium in the microcavity is Anthracene-PMDA or CuCl. These crystals exhibit giant two-photon absorption due to the formation of excitonic 2-strings or biexcitons. We also present results for the spectral content of the cavity field which confirm the complementary nature of the amplitude and phase fluctuations.
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