Design and numerical verification of plasmonic cross antennas to generate localized circularly polarized light for all-optical magnetic recording

作者：Ohnuki Shinichiro^*; Kato Tsukasa; Takano Yuta; Ashizawa Yoshito; Nakagawa Katsuji

来源：Radio Science, 2015, 50(1): 29-40.

DOI：10.1002/2014RS005563

• all-optical magnetic recording
• ultrafast magnetic recording
• high-density magnetic recording
• plasmonic antennas
• localized circularly polarized light

All-optical magnetic recording with localized circularly polarized light is studied for realizing ultrafast and high-density magnetic recording. We design plasmonic cross antennas with bit-patterned media and evaluate the Stokes parameters. Using our proposed method, the magnetic recording speed is about 100,000 times faster than that for conventional methods and the recording density becomes over 2Tbit/inch(2).

• 出版日期2015-1