FisMat2017 - Submission - View

Abstract's title: Quantum technologies with photostable molecule on-chip
Submitting author: Costanza Toninelli
Affiliation: CNR-INO
Affiliation Address: Via Nello Carrara 1 sesto fiorentino Firenze
Country: Italy
Oral presentation/Poster (Author's request): Oral presentation
Other authors and affiliations:
Abstract

Efficient interaction of light with quantum emitters is crucial for most applications in nano and

quantum technologies. In the last decade, great progresses in the field have been possible by exploiting

hybrid interfaces. In this context, we provide experimental proofs of the efficient coupling of single

organic molecules to confined electromagnetic modes in photonic devices.

Dibenzoterrylene molecules in anthracene crystals (DBT:Ac) are particularly suitable quantum

systems for this task, due to outstanding photophysical properties in crystals as thin as few tens

of nanometers: long-term photostability [1], lifetime-limited emission in the zero phonon line at

cryogenic temperatures [2, 3], operating wavelength in the near-infrared at 780 nm. Building on the

advantages of all-solid-state systems, we demonstrate that our platform allows effective single photon

sources specifically coupled to confined radiation modes and opens the pathways to the realization

of localized optical nonlinearities at the single-photon level[4, 5].

A versatile planar optical antenna-like structure is demonstrated [6], which strongly

directs the radiation of the molecule into a narrow pattern (20o-wide semicone), thus enabling

considerably effective mode-matching with an external gaussian beam. We also report on our results

about  fluorescence coupling to a single-mode dielectric waveguide [9] and discuss the integration of

single quantum emitters into hybrid dielectric-plasmonic devices [7], with respect to the

realization of optical transistors in the low light regime. Competitive collection efficiencies, free

from interconnection losses [8], candidate the system for scalable approaches to on-chip quantum

computation [4]. Eventually, we report on current efforts to integrate molecular crystals in polymer-

made architectures.

 

[1] C. Toninelli et al., Opt. Express 18, 6577 (2010).

[2] A. A. L. Nicolet et al., ChemPhysChem 8, 1929-1936 (2007).

[3] J. B. Trebbia et al., Opt. Express. 17, 23986-23991 (2009).

[4] J. Hwang et. al., New Journal of Physics 13, 085009 (2011).

[5] T. G. Tiecke et al., Nature 508, 241-244 (2014).

[6] S. Checcucci, et al., LSA (accepted).

[7] P. Lombardi, et al., arxiv.:1701.00459v1 (2017)

[8] G. Kewes et al., Sci. Rep. 6, 28877 (2016).

[9] W. Pernice et al., Nat. Comm. 3, 1325 (2012).