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Quantum Beats in Hybrid Metal-Semiconductor Nanostructures

DSpace at IIT Bombay

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Title Quantum Beats in Hybrid Metal-Semiconductor Nanostructures
 
Creator DASS, CK
JARVIS, T
KUNETS, VP
MAZUR, YI
SALAMO, GG
LIENAU, C
VASA, P
LI, XQ
 
Subject ELECTROMAGNETICALLY INDUCED TRANSPARENCY
HEAVY-HOLE EXCITONS
SPONTANEOUS EMISSION
SPIN RELAXATION
WELLS
SURFACE
LIGHT
GAAS
DYNAMICS
OSCILLATIONS
plasmonics
quantum well
hybrid nanostructure
ultrafast spectroscopy
quantum coherence
 
Description We investigate nonradiative quantum coherence in the presence of coupling between excitons and surface plasmon polaritons (SPPs) in a hybrid metal semiconductor nanostructure. In particular, we study how quantum coherence between heavy-hole (HH) and light-hole (LH) excitons in a GaAs quantum well (QW) is modified when they are coupled to SPPs of a gold grating. We find that the nonradative coherence is reduced in correlation with the coupling strength between the excitons and SPPs. Under the resonant coupling condition, the nonradiative coherence remains in the range of hundreds of femtoseconds, which is significantly longer than the plasmonic coherence. These experiments directly probe quantum critical information for exploring future quantum plasmonics applications. dynamics in a prototypical hybrid system and provide critical information for exploring future quantum plasmonics applications.
 
Publisher AMER CHEMICAL SOC
 
Date 2016-01-15T06:20:01Z
2016-01-15T06:20:01Z
2015
 
Type Article
 
Identifier ACS PHOTONICS, 2(9)1341-1347
2330-4022
http://dx.doi.org/10.1021/acsphotonics.5b00328
http://dspace.library.iitb.ac.in/jspui/handle/100/17916
 
Language en