Speaker: Dr. Chun-Yuan Cheng, Department of Physics, NTHU
Time: 1:20 p.m, 9/21 , Place: R124, Department of Physics
Title:
Time-Resolved Detection of Photon-Surface-Plasmon Coupling at Single Quanta Level

Abstract:
The interplay of nonclassical light and surface plasmons has attracted considerable 
attention due to fundamental interests and potential applications. To gain more 
insight into the quantum nature of the photon-surface-plasmon coupling, the time 
resolved study of the interaction is invaluable. We have demonstrated the time 
resolved detection of photon-surface-plasmon coupling by exploiting single and 
entangled photons with long coherence time to excite single optical plasmons. Using 
the new technique, we examined the nonclassical correlation between the single 
photons and single optical plasmons in such systems with the time-resolved Cauchy 
Schwarz inequality. We also realized single optical plasmons with programmable 
temporal wavepacket by manipulating the waveform of incident single photons. The 
time-resolved detection and coherent control of single optical plasmons offer new 
opportunities to study and control the light-matter interaction at the nanoscale.