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Quantumcoherent plasmonics: Atomicphasecoherence assisted surface plasmon resonance and negative optical parameters in multilevel media
KTH. Centre for Optical and Electromagnetic Research, College of Optical Science and Engineering, State Key Laboratory of Modern Optical Instrumentations, Zhejiang University, Hangzhou, China; Zhejiang University, Hangzhou, China. (Joint Research Centre of Photonics of the Royal Institute of Technology, Sweden)
2016 (English)In: Plasmonics: Advances in Research and Applications, Nova Science Publishers, Inc. , 2016, p. 121-238Chapter in book (Other academic)
Abstract [en]

Phase coherence in atoms and semiconductor quantum dots driven by light fields are extremely sensitive to probe field frequency, and the corresponding optical responses can be controllably manipulated by the applied external control light fields (i.e., controlling one light with the other lights via atomic phase coherence or quantum interference in multilevel transitions). Some theoretical scenarios of '‘quantumcoherent plasmonics’' have been developed on the basis of such frequencysensitive and fieldcontrolled optical effects. For example, an experimentally feasible configuration of prism coupler with an EIT (electromagnetically induced transparency) medium layer deposited upon its prism base is suggested for generating tunable surfaceplasmonlike resonance via switchable quantum interference among multilevel transitions driven by control fields. Since the surfaceplasmonlike resonance at the interface between the EIT layer and the bounding medium arises, and an incident probe field is then coupled into surfaceplasmonlike excitation modes, the quantumcoherently controllable reflection spectrum of the probe field on the prism base can be achieved because of destructive and constructive quantum interference (determined by the intensity ratio of the external control fields) occurring in the multilevel system, e.g., atom and quantum dot (artificial atom) that can exhibit quantum coherent effects. In this chapter, we will address the following topics of '‘quantumcoherent plasmonics’': 1) Tunable attenuated total reflection (ATR) in an EITprism coupler via quantum interference of a fourlevel atomic system; ii) Dispersionsensitive surface plasmon wave assisted by incoherent gain; iii) A threedimensionally isotropic bulk quantumcoherent negativepermeability medium with pumped magneticdipole hyperfine transition; iv) Dressedstate assisted mixedparity transition between two atomic levels; v) A doublenegative medium assisted by twophoton quantum coherence. In addition, we also suggest some alternative quantum optical schemes for realizing negative optical indices aiming at supporting surface plasmon modes, e.g., '‘threelevel simultaneous electric and magnetic resonance’' and '‘simultaneously negative permittivity and permeability via mixedparity transition’'. Such quantumcoherent lefthanded media would have three fascinating characteristics: i) negative refractive index at visible/infrared frequencies, ii) threedimensionally isotropic negative refractive index (this would lead to a potential application in fabrication of superlenses for perfect imaging and subwavelength focusing), and iii) tunable negative refractive index that depends on the Rabi frequency of the incident propagating light. Therefore, the present intriguing effects (and properties) based on quantum coherent control can be employed to designs of new photonic and quantum optical devices that make use of the quantum coherence to manipulate electromagnetic waves. 

Place, publisher, year, edition, pages
Nova Science Publishers, Inc. , 2016. p. 121-238
Keywords [en]
Atomic phase coherence, Atomic vapor, Electric and magnetic surface plasmon waves, Negative indices, Quantum dots, Quantum interference, Quantumcoherent plasmonics
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-216886Scopus ID: 2-s2.0-85030246751ISBN: 9781536101867 ISBN: 9781536101744 OAI: oai:DiVA.org:kth-216886DiVA, id: diva2:1153743
Note

Export Date: 24 October 2017; Book Chapter; Correspondence Address: Shen, J.Q.; Centre for Optical and Electromagnetic Research, College of Optical Science and Engineering, State Key Laboratory of Modern Optical Instrumentations, Zhejiang UniversityChina; email: jqshen@zju.edu.cn. QC 20171031

Available from: 2017-10-31 Created: 2017-10-31 Last updated: 2017-10-31Bibliographically approved

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