The three-level optical Stark effect is due to a dynamical coupling of two excited states by an intense laser field. This effect has been observed on the heavy and light hole excitons in multiple quantum wells (MQW) and the dipole allowed 2 P exciton in Cu20. In this contribution new results on the dipole forbidden but quadrupole allowed 1 S exciton in Cu20 are reported. The experimental results are analyzed in terms of a nonlinear susceptibility which takes into account the dynamical coupling between the excited states to all orders.The three-level optical Stark effect is due to a dynamical coupling of two excited states by an intense laser field. This effect has been observed on the heavy and light hole excitons in multiple quantum wells (MQW) and the dipole allowed 2 P exciton in Cu20. In this contribution new results on the dipole forbidden but quadrupole allowed 1 S exciton in Cu20 are reported. The experimental results are analyzed in terms of a nonlinear susceptibility which takes into account the dynamical coupling between the excited states to all orders.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIEMay 1, 19900 citations

Static and Dynamic Effects in Coupled Quantum Wells

Leszek Świerkowski, J. Szymański, Lerwen Liu +1 more

Recent Progress in Many-Body TheoriesJan 1, 19950 citations

Quantum Wells in the Presence of Interaction

WORLD SCIENTIFIC eBooksJun 1, 19970 citations

Strong coupling on a forbidden transition in strontium and nondestructive atom counting

Matthew A. Norcia, James K. Thompson

We observe strong collective coupling between an optical cavity and the forbidden spin singlet to triplet optical transition $^{1}S_{0}$ to $^{3}P_{1}$ in an ensemble of $^{88}\text{Sr}$ . Despite the transition being 1000 times weaker than a typical dipole transition, we observe a well-resolved vacuum Rabi splitting. We use the observed vacuum Rabi splitting to make nondestructive measurements of atomic population with the equivalent of projection-noise limited sensitivity between subsequent measurements and with minimal heating [ $<0.01$ (photon recoils)/atom]. This technique may be used to enhance the performance of optical lattice clocks by generating entangled states and reducing dead time.We observe strong collective coupling between an optical cavity and the forbidden spin singlet to triplet optical transition $^{1}S_{0}$ to $^{3}P_{1}$ in an ensemble of $^{88}\text{Sr}$. Despite the transition being 1000 times weaker than a typical dipole transition, we observe a well-resolved vacuum Rabi splitting. We use the observed vacuum Rabi splitting to make nondestructive measurements of atomic population with the equivalent of projection-noise limited sensitivity between subsequent measurements and with minimal heating [$<0.01$ (photon recoils)/atom]. This technique may be used to enhance the performance of optical lattice clocks by generating entangled states and reducing dead time.

arXiv:1506.02297Physical Review AFeb 2, 201636 citations

We observe strong collective coupling between an optical cavity and the forbidden spin singlet to triplet optical transition

^{1}S_{0}

^{3}P_{1}

in an ensemble of

^{88}\text{Sr}

. Despite the transition being 1000 times weaker than a typical dipole transition, we observe a well-resolved vacuum Rabi splitting. We use the observed vacuum Rabi splitting to make nondestructive measurements of atomic population with the equivalent of projection-noise limited sensitivity between subsequent measurements and with minimal heating [

<0.01

(photon recoils)/atom]. This technique may be used to enhance the performance of optical lattice clocks by generating entangled states and reducing dead time.