Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published February 1, 2019 | public
Journal Article

Efficient two-photon excitation by photonic dimers


In this Letter, we show that photonic dimers, the quantum mechanical bound states of two photons, enable efficient nonlinear two-photon excitation, primarily due to the Lorentzian energy anti-correlation and to the temporal proximity between the constituent photons. We analytically and numerically demonstrate the order-of-magnitude improvement of the excitation efficiency per photon by the photonic dimers over the ultrashort pulses from a laser. We further show that, owing to the high excitation efficiency, the two-photon transition rate by photonic dimers deviates from the well-known linear intensity dependence at low intensities. Possible approaches for generating the photonic dimers in semiconductor platforms are also investigated.

Additional Information

© 2019 Optical Society of America.v Received 30 October 2018; revised 15 December 2018; accepted 15 December 2018; posted 17 December 2018 (Doc. ID 349506); published 16 January 2019.v Funding:vNational Science Foundation (NSF); Directorate for Engineering (ENG) and Division of Electrical, Communications and Cyber Systems (ECCS) (1608049, 1838996).

Additional details

August 19, 2023
October 20, 2023