Title :
Super-oscillatory optical needle for heat assisted magnetic recording
Author :
Yuan, Guanghui ; Rogers, Edward T. F. ; Lafferty, Brendan ; Mooney, Marcus ; Shen, Zhe ; Zheludev, Nikolay I.
Author_Institution :
Centre for Disruptive Photonic Technol., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
We demonstrate an alternative to plasmonic focusing, a super-oscillatory focusing lens capable of producing a 51nm spot for optical heating in heat assisted magnetic recording using a diode laser operating at 473 nm wavelength.
Keywords :
lenses; magnetic recording; optical focusing; semiconductor lasers; diode laser; heat assisted magnetic recording; optical heating; superoscillatory focusing lens; superoscillatory optical needle; wavelength 473 nm; Amplitude modulation; Focusing; Heating; Lenses; Magnetic recording; Magnetic resonance imaging; Optical imaging;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
