Title :
Fabrication and characterization of nano-aperture VCSELS for 10 Tb/in2 magnetic storage densities
Author :
Hussain, Shiraz ; Bhatia, Charanjit S. ; Hyunsoo Yang ; Danner, Aaron J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore
Abstract :
The goal of this work is to determine the possibility of using nano-aperture VCSELs in heat-assisted magnetic recording (HAMR) applications. The VCSELs in this work, specifically, are primarily used as miniature testbeds for characterizing near field transducer designs. We have fabricated 850 nm VCSELs with large arrays of differently shaped nano-apertures in the gold layer on top of each VCSEL and used statistical methods to obtain reliable indicators of performance of each aperture. The focusing and transmission characteristics of differently shaped nano-apertures are compared by both simulation and experiment.
Keywords :
gold; laser cavity resonators; nanophotonics; optical fabrication; optical focusing; surface emitting lasers; transducers; Au; field transducer design; focusing characteristics; gold layer; heat-assisted magnetic recording; magnetic storage density; nanoaperture VCSELS; optical fabrication; transmission characteristics; wavelength 850 nm; Heat-assisted magnetic recording; Optical device fabrication; Optical polarization; Stimulated emission; Vertical cavity surface emitting lasers;
Conference_Titel :
Optical MEMS and Nanophotonics (OMN), 2013 International Conference on
Conference_Location :
Kanazawa
Print_ISBN :
978-1-4799-1512-5
DOI :
10.1109/OMN.2013.6659048
