Title :
Enhancement of Near-Field Optical Throughput using Double Grating Structure for HAMR Head
Author :
Lim, Dong-Soo ; Kim, Young-Joo
Author_Institution :
Center of Inf. Storage Device, Yonsei Univ., Seoul
fDate :
Nov. 29 2006-Dec. 1 2006
Abstract :
New heat assisted magnetic recording (HAMR) head of double grating structure is proposed and simulated using FDTD. Since the near-field optical power strongly depends on the polarization of light, structure of waveguide metal film and enhancement of surface plasmon polariton, it is expected for new head structure to provide greater optical power from the optimization of grating structure for the best resonance tunneling effect and constructive interference
Keywords :
diffraction gratings; finite difference time-domain analysis; light polarisation; magnetic heads; magnetic recording; optical films; optical storage; optical waveguides; surface plasmon resonance; FDTD; HAMR head; double grating structure; heat assisted magnetic recording; light polarization; nanoslit; near-field optics; resonance tunneling effect; surface plasmon polariton enhancement; waveguide metal film; Finite difference methods; Gratings; Heat-assisted magnetic recording; Magnetic heads; Magnetic recording; Optical films; Optical recording; Optical waveguides; Throughput; Time domain analysis; FDTD; HAMR; grating; high density recording; magnetic recording; nano slit; near-field optics; surface plasmon;
Conference_Titel :
Asia-Pacific Magnetic Recording Conference, 2006
Conference_Location :
Singapore
Print_ISBN :
1-4244-0863-6
DOI :
10.1109/APMRC.2006.365960
