Theoretical Analysis of Recording Light Distribution in Phase-Change Near-Field Recording Using Solid Immersion Lens

Jingfeng Liu, Tow Chong Chong, Baoxi Xu
2000 Japanese Journal of Applied Physics  
We investigate the behavior of recording light in a phase-change near-field recording system in the presence of a solid immersion lens (SIL) and an optical disk. The relationship of the recording light density with the air gap and the disk structure is analyzed in detail, together with the beam spot profiles. Moreover, the coupling efficiency in the presence of the optical disk is calculated. It is found that the behavior of the recording light depends strongly on the air gap and the entire optical disk structure.
doi:10.1143/jjap.39.948 fatcat:u54qetq4cbgsba7gl4jiom2nou