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21 May 2018 Quantum nonlinear optics in one dimension (Conference Presentation)
Nir Rotenberg
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Proceedings Volume 10530, Ultrafast Phenomena and Nanophotonics XXII; 1053002 (2018) https://doi.org/10.1117/12.2292796
Event: SPIE OPTO, 2018, San Francisco, California, United States
Abstract
At the quantum limit of nonlinear optics, where single photons interact with individual emitters, new phenomena are found. One-dimensional, subwavelength waveguides have recently emerged as a promising quantum optical platform capable of both guiding and confining photons, leading to efficient light-matter interactions and enhancing quantum optical nonlinearities. We explore this regime using both single organic molecules and epitaxially grown quantum dots coupled to nanoscale waveguides. In the first case, two-color experiments allow us to observe distinctly quantum nonlinearities such as Stark shifts of the molecular resonances or amplification without population inversion, although we are limited by relatively weak molecule-waveguide coupling. In contrast, quantum dots can be nearly perfectly coupled to waveguides, allowing us to demonstrate optical nonlinearities at the true single photon level. These, as we discuss, can be used as a basis for novel on-chip quantum technologies.
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Nir Rotenberg "Quantum nonlinear optics in one dimension (Conference Presentation)", Proc. SPIE 10530, Ultrafast Phenomena and Nanophotonics XXII, 1053002 (21 May 2018); https://doi.org/10.1117/12.2292796
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KEYWORDS
Nonlinear optics
Waveguides
Quantum dots
Quantum efficiency
Single photon
Light-matter interactions
Molecules
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