Optical module with multiple beams for near-field recording
Tóm tắt
High-density and high-speed have been the trend of developing next generation optical storage technologies. Rauch et al.[1] proposed a hybrid recording system called wave-guide hybrid advanced MEMS (WHAM) by using two kind of fields. One is an optical beam that controls the track width and the other is the magnetic field that controls bit length as shown in Fig. 1. The recorded mark is confined within the small cross-region and therefore the recording density is effectively increased. Kim et al.[2] further designed the module by integrating waveguide and two-dimensional toroidal optical elements into a substrate. It can be easily fabricated by MEMS technologies.
Từ khóa
#Optical recording #High speed optical techniques #Optical refraction #Laser beams #Optical waveguides #Micromechanical devices #Lenses #Optical beams #Optical diffraction #Optical collimatorsTài liệu tham khảo
dammann, 1971, Opt Commun 3, 312
kim, 2001, Design Aspects of Waveguide Hybrid Advance MEMS (WHAM), Optical Data Storage Topical Meeting 2001, 19
rausch, 2000, Near Field Hybrid Recording with a Mode Index Waveguide Lens, Proc SPIE, 4090, 66, 10.1117/12.399372
0, ZEN Research co