Frequency comb has shown remarkable potential in time/frequency metrology, atomic/molecular spectroscopy and precision LIDARs. It will create novel possibilities in nano-photonics and plasmonics; however, its interrelation with surface plasmons is unexplored despite the important role that plasmonics play in nonlinear spectroscopy and quantum optics through the manipulation of light in a subwavelength scale. We demonstrate that frequency comb can be transferred by plasmonic nanostructures without noticeable degradation of less than 6.51×10-19 in absolute position and 1 Hz in linewidth, which implies frequency comb’s potential applications in nanoplasmonic spectroscopy, quantum metrology and subwavelength photonic circuits.
Young-Jin Kim, Byung Jae Chun, and Seungchul Kim, "Plasmonic extra-ordinary transmission: testing the maintenance of optical frequency and phase via a frequency comb," Proc. SPIE 10509, Plasmonics in Biology and Medicine XV, 105090L (Presented at SPIE BiOS: January 30, 2018; Published: 23 February 2018); https://doi.org/10.1117/12.2290244.
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