Dye-doped cholesteric-liquid-crystal room-temperature single-photon source

Fluorescence antibunching from single terrylene molecules embedded in a cholesteric-liquid-crystal host is used to demonstrate operation of a room-temperature single-photon source. One-dimensional (1-D) photonic-band-gap microcavities in planar-aligned cholesteric liquid crystals with band gaps from...

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Published in:Journal of modern optics 2004-06, Vol.51 (9-10), p.1535-1547
Main Authors: Lukishova, Svetlana G., Schmid, Ansgar W., Supranowitz, Christopher M., Lippa, Nadine, McNamara, Andrew J., Boyd, Robert W., Stroud, C. R.
Format: Article
Language:English
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Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Optics
Physics
Quantum optics
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container_end_page 1547
container_issue 9-10
container_start_page 1535
container_title Journal of modern optics
container_volume 51
creator Lukishova, Svetlana G.
Schmid, Ansgar W.
Supranowitz, Christopher M.
Lippa, Nadine
McNamara, Andrew J.
Boyd, Robert W.
Stroud, C. R.
description Fluorescence antibunching from single terrylene molecules embedded in a cholesteric-liquid-crystal host is used to demonstrate operation of a room-temperature single-photon source. One-dimensional (1-D) photonic-band-gap microcavities in planar-aligned cholesteric liquid crystals with band gaps from visible to near-infrared spectral regions are fabricated. Liquid-crystal hosts (including liquid crystal oligomers and polymers) increase the source efficiency, firstly, by aligning the dye molecules along the direction preferable for maximum excitation efficiency (deterministic molecular alignment provides deterministically polarized output photons), secondly, by tuning the 1-D photonic-band-gap microcavity to the dye fluorescence band and thirdly, by protecting the dye molecules from quenchers, such as oxygen. In our present experiments, using oxygen-depleted liquid-crystal hosts, dye bleaching is avoided for periods exceeding one hour of continuous 532 nm excitation.
doi_str_mv 10.1080/09500340408235291
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subjects Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Optics
Physics
Quantum optics
title Dye-doped cholesteric-liquid-crystal room-temperature single-photon source
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