Transient analysis of localized circularly polarized light for all-optical magnetic recording

Hiroshi Iwamatsu, Tsukasa Kato, Shinichiro Ohnuki, Yoshito Ashizawa, Katsuji Nakagawa, Weng Cho Chew

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

For ultra-high speed recording, all-optical magnetic recording technology with circularly polarized lights has been studied [1-3]. However, it was difficult to localize circularly polarized light for realizing higher density magnetic recording because of the diffraction limit. Our proposed plasmonic cross antenna can generate the nano-sized circularly polarized light inside the recording media for high density magnetic recording [4, 5]. In this paper, we analyze the electromagnetic fields of a plasmonic cross antenna and the bit-patterned media by the ADE-FDTD method [6]. The intensity of the electric fields inside the bit-patterned media and the speed to generate the circularly polarized light are discussed for all-optical magnetic recording.

Original languageEnglish (US)
Title of host publicationConference Proceedings of the 2012 International Symposium on Antennas and Propagation, ISAP 2012
Pages943-946
Number of pages4
StatePublished - Dec 1 2012
Event2012 17th International Symposium on Antennas and Propagation, ISAP 2012 - Nagoya, Japan
Duration: Oct 29 2012Nov 2 2012

Publication series

NameIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
ISSN (Print)1522-3965

Other

Other2012 17th International Symposium on Antennas and Propagation, ISAP 2012
CountryJapan
CityNagoya
Period10/29/1211/2/12

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Iwamatsu, H., Kato, T., Ohnuki, S., Ashizawa, Y., Nakagawa, K., & Chew, W. C. (2012). Transient analysis of localized circularly polarized light for all-optical magnetic recording. In Conference Proceedings of the 2012 International Symposium on Antennas and Propagation, ISAP 2012 (pp. 943-946). [6393751] (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)).