Abstract
The dependence of waveguiding loss on the magnetization of a Fe micromagnet embedded into the (Al,Ga)As optical waveguide was examined as a possible readout method for the spin-photon memory. The optical detection of the magnetization direction of a Fe micromagnet was demonstrated for the micromagnet sizes of and with signal-to-noise ratios of 4.8 and 6 dB, respectively. In the case of smaller sizes, the use of spin injection from the micromagnet into a semiconductor optical amplifier was proposed for the optical detection of the magnetization.
© 2010 Optical Society of America
Full Article | PDF ArticleMore Like This
Taichi Goto, Ryohei Morimoto, John W. Pritchard, Mani Mina, Hiroyuki Takagi, Yuichi Nakamura, Pang Boey Lim, Takunori Taira, and M. Inoue
Opt. Express 24(16) 17635-17643 (2016)
Sabarni Palit, Jeremy Kirch, Mengyuan Huang, Luke Mawst, and Nan Marie Jokerst
Opt. Lett. 35(20) 3474-3476 (2010)
Na Lou, Rajan Jha, Jorge Luis Domínguez-Juárez, Vittoria Finazzi, Joel Villatoro, Gonçal Badenes, and Valerio Pruneri
Opt. Lett. 35(4) 571-573 (2010)