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Sensitive Optical Behavior in an Electromagnetically Induced Transparency Waveguide via Double-Control Quantum Interference
KTH, Skolan för informations- och kommunikationsteknik (ICT), Centra, Zhejiang-KTH Joint Research Center of Photonics, JORCEP.
2012 (Engelska)Ingår i: Journal of the Physical Society of Japan, ISSN 0031-9015, E-ISSN 1347-4073, Vol. 81, nr 2, s. 024403-Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

A tripod-configuration four-level atomic system can exhibit nontrivial quantum destructive and constructive interference that could manipulate the optical response of an atomic vapour. It is shown that the tunable double-control electromagnetically induced transparency (EIT) would be controlled via the quantum interference between two control fields interacting with the present atomic system. If a metallic waveguide is filled with such a double-control four-level atomic vapour, the quantum vacuum mode structure in the present EIT waveguide would have a novel influence on the atomic spontaneous emission decay (and hence on the EIT optical behavior). As the waveguide dimension change (i.e., the change in length scale of cross section of waveguide) can vary the vacuum mode structure, which can lead to spontaneous emission enhancement or inhibition, the optical response (including absorption and transparency induced by the tunable double-control quantum destructive and constructive interference) of the atomic vapour in the waveguide is quite sensitive to small change in the waveguide dimension caused by external environmental factors (such as electric signal voltage, environmental temperature change and acoustic pressure). The sensitive optical response based on the mechanisms of both double-control quantum interference and quantum-vacuum manipulation presented here may have some potential applications to the technique for designing new photonic and quantum optical devices.

Ort, förlag, år, upplaga, sidor
2012. Vol. 81, nr 2, s. 024403-
Nyckelord [en]
quantum interference, sensitive optical response, spontaneous emission enhancement and inhibition, double-control EIT
Nationell ämneskategori
Fysik
Identifikatorer
URN: urn:nbn:se:kth:diva-94067DOI: 10.1143/JPSJ.81.024403ISI: 000299822100027Scopus ID: 2-s2.0-84856667850OAI: oai:DiVA.org:kth-94067DiVA, id: diva2:525696
Anmärkning
QC 20120509Tillgänglig från: 2012-05-09 Skapad: 2012-05-07 Senast uppdaterad: 2017-12-07Bibliografiskt granskad

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Shen, Jian Qi
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Zhejiang-KTH Joint Research Center of Photonics, JORCEP
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Journal of the Physical Society of Japan
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