Title :
High Numerical Aperture Hemisphere Solid Immersion Lens made of KTaO3 with Wide Thickness Tolerance
Author :
Saito, Kimihiro ; Kondo, Takao ; Nakaoki, Ariyoshi ; Sasaura, Masahiro ; Fujiura, Kazuo
Author_Institution :
Opt. Syst. Dev. Div., Sony Corp., Tokyo
Abstract :
The hemisphere SIL that had a wide thickness tolerance was developed. The optics of NA 1.84 with hemisphere SIL of KTaO3 was designed and the same playback performance as that of super-hemisphere SIL was confirmed
Keywords :
lenses; optical design techniques; optical disc storage; potassium compounds; KTaO3; hemisphere solid immersion lens; numerical aperture; thickness tolerance; Apertures; Lenses; Optical design; Optical interferometry; Optical materials; Optical refraction; Optical variables control; Refractive index; Shape; Solids;
Conference_Titel :
Optical Data Storage Topical Meeting, 2006
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-9494-1
DOI :
10.1109/ODS.2006.1632745
