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Physical Chemistry Chemical Physics

Polarization dressed multi-order fluorescence of Pr 3+ :Y 2 SiO 5

Ruimin Wang, Chengjun Lei, Changbiao Li, Huayan Lan, Huaibin Zheng, Min Xiao, Yanpeng Zhang

Published Jan 1, 2014• 13 citations
Publisher

Abstract

We report polarization dressed second-, fourth- and sixth-order fluorescence processes in a Pr(3+):Y2SiO5 crystal. By changing the polarization states of dressing fields and generating fields, the fluorescence baselines, suppression and Autler-Townes splitting of emission peaks can be controlled. The polarization dependencies of fluorescence generated from two inequivalent crystallographic sites are compared. The experimental results agree with the dressing theoretical calculations well.

DOI
10.1039/c4cp02001d

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Abstract Atom-like nonlinear responses of rare earth doped crystal Pr 3+ :Y 2 SiO 5 (Pr 3+ : YSO) exhibit unique features compared with other nonlinear crystals. The responses become more interesting, while Pr 3+ : YSO is modulated simultaneously by temperature and multi-parameters related to dressed state. The generations of Stokes and fluorescence (FL) signals are demonstrated in both time and spectral domains. Here, we are presenting a new controlling strategy by interaction between dressing and phonon on Pr 3+ : YSO to manipulate the intensity of Stokes and FL signals. Interaction between dressing and phonon leads to more stable nonlinear response of the YSO crystal, which is very important for integrated quantum photonic device stability and multi-functionality. Also, we have realized tunable hybrid spectral filter (narrow-band pass notch filter (NBPNF), narrow-band stop notch filter (NBSNF)) and time-division multiplexing router on Pr 3+ : YSO by controlling the interaction between dressing and phonons. Tunable hybrid spectral filter and pure NBPNF are realized from dressing dip of Autler-Townes (AT) splitting and spectral intensity Stokes emission peak. Also, time-division multiplexing router is realized by time-domain adiabatic expansion. Furthermore, optical switch between tunable hybrid spectral filter to pure NBPNF is realized from dressing dip (AT splitting) to spectral intensity Stokes emission peak. Our experimental results suggests advanced technique for realizing tunable hybrid spectral filter with a contrast of about 98%, and optical time-division multiplexing router with channel equalization is about 85%.

Engineering Research Express•Oct 31, 2019•3 citations
We report polarization dressed second-, fourth- and sixth-order fluorescence processes in a Pr(3+):Y2SiO5 crystal. By changing the polarization states of dressing fields and generating fields, the fluorescence baselines, suppression and Autler-Townes splitting of emission peaks can be controlled. The polarization dependencies of fluorescence generated from two inequivalent crystallographic sites are compared. The experimental results agree with the dressing theoretical calculations well.
Abstract We report modulating spontaneous four-wave mixing, fourth-order fluorescence, and intensity noise correlation by polarization-dressing effect at different temperatures in a Pr3+:Y2SiO5 crystal. The delay time, Autler–Townes splitting, and shape of correlation curve are changed observably with temperature and polarization state of dressing field. These results demonstrate competition between polarization-dressing and phonon effects. The impact of temperature on nonlinear response is very important for the stability of quantum optical devices.
Polarization-dressed time-delayed fluorescence (FL) processes in Pr3+:YSO crystal are investigated experimentally. By changing the polarization of the incident beam, the double-dressing effect and the time delay of the second- and fourth-order FL processes can be controlled. Furthermore, the total evolution of the temporal FL signals with different incident beam intensities is observed. The two split peaks of FL in time domain are suppressed by the polarized dressing field. The switch of the suppressed dip and the enhanced peak at different time positions has also been studied. In addition, the evolution of the FL spectral signal at the adiabatic population transition stage, the build time, and the decay time of temporal FL signal with varied incident beam polarizations are also investigated. Such results can find potential applications in all-optical communication on photonic chips.
For first time, we study primary and secondary Autler-Townes (AT) splitting of multi-order fluorescence (FL) in time domain. The AT-splitting of multi-order FL signals are controlled by changing power, detuning, and polarization of single and double dressing in a heteronuclear-like molecule system of Pr+3:YSO. The primary and secondary AT-splitting is caused by double cascaded dressing in time domain. The AT-splitting of multi-order FL in time domain is more sensitive than that of in spectral domain. Such results have potential applications in quantum communication and optical information processing on photonic chip.
We investigate the second-order fluorescence (FL) signals of Pr 3+:YSO both theoretically and experimentally. For the first time, the Autler–Townes (AT) splitting effect of FL spectrum induced by itself and/or external fields and the polarization dependence of FL signals in two-level, V-level, and N-level atomic systems are observed and explained. The AT splitting distance can be modulated by the frequency detunings, power, and polarization configurations of the incident fields which are well explained by using the presented theoretical model.
Abstract Atom-like nonlinear responses of rare earth doped crystal Pr 3+ :Y 2 SiO 5 (Pr 3+ : YSO) exhibit unique features compared with other nonlinear crystals. The responses become more interesting, while Pr 3+ : YSO is modulated simultaneously by temperature and multi-parameters related to dressed state. The generations of Stokes and fluorescence (FL) signals are demonstrated in both time and spectral domains. Here, we are presenting a new controlling strategy by interaction between dressing and phonon on Pr 3+ : YSO to manipulate the intensity of Stokes and FL signals. Interaction between dressing and phonon leads to more stable nonlinear response of the YSO crystal, which is very important for integrated quantum photonic device stability and multi-functionality. Also, we have realized tunable hybrid spectral filter (narrow-band pass notch filter (NBPNF), narrow-band stop notch filter (NBSNF)) and time-division multiplexing router on Pr 3+ : YSO by controlling the interaction between dressing and phonons. Tunable hybrid spectral filter and pure NBPNF are realized from dressing dip of Autler-Townes (AT) splitting and spectral intensity Stokes emission peak. Also, time-division multiplexing router is realized by time-domain adiabatic expansion. Furthermore, optical switch between tunable hybrid spectral filter to pure NBPNF is realized from dressing dip (AT splitting) to spectral intensity Stokes emission peak. Our experimental results suggests advanced technique for realizing tunable hybrid spectral filter with a contrast of about 98%, and optical time-division multiplexing router with channel equalization is about 85%.