TY - JOUR
AU - Kim, Young-Joo
AB - In heat assisted magnetic recording (HAMR) technology, it is required that the light delivery system has both high near-field optical intensity with small spot size and easy integration with a magnetic head. To satisfy these requirements, a grating structure combined with a nanoslit aperture is proposed and designed using a finite differential time domain (FDTD) simulation. Since the surface plasmon polaritons are excited by the grating structure, and the near-field transmitted light is confined locally near the lower grating structure in the exit plane, the near-field optical intensity of light that penetrated through the nanoslit aperture of the asymmetric double-sided grating structure increased 10-fold compared with that of light penetrating through the nanoslit aperture without the grating structure. In addition, the spot size obtained using this proposed grating structure is reduced to 36% of that obtained using nanoslit aperture without the grating structure. 
TI - Nanooptical Characteristics of Double-Sided Grating Structure with Nanoslit Aperture for Heat Assisted Magnetic Recording
JF - Japanese Journal of Applied Physics
DO - 10.1143/JJAP.48.03A060
DA - 2009-03-01
UR - https://www.deepdyve.com/lp/iop-publishing/nanooptical-characteristics-of-double-sided-grating-structure-with-1ZIUBNYHVi
SP - 03A060
VL - 48
IS - 3S1
DP - DeepDyve
ER -