Chiral optical Local Density of States in spiral plasmonic cavity
  We introduce a new paradigm: the chiral electromagnetic local density of states (LDOS) in a spiral plasmonic nanostructure. In both classical and quantum regimes, we reveal using scanning near-field optical microscopy (NSOM) in combination with spin analysis that a spiral cavity possesses spin-dependent local optical modes. We expect this work to lead to promising directions for future quantum plasmonic device development, highlighting the potentials of chirality in quantum information processing. 
Aline Pham, Martin Berthel, Quanbo Jiang Joel Bellessa, Serge Huant,   Cyriaque Genet, and Aur\'elien Drezet
cond-mat.mes-hall quant-ph