Light emission from thulium silicates and oxides for optical amplifiers on silicon in the extended optical communications band

by Hiroo Omi, Atsushi Hagiwara, Takehiko Tawara
Published 2013-07-01

Mixture formation of ErxYb2-xSi2O7 and ErxYb2-xO3 on Si for broadening the C-band in an optical amplifier

by Hiroo Omi, Yoshiyuki Abe, Maria Anagnosti, Takehiko Tawara
Published 2013-04-01

Near-field cavity optomechanical coupling in a compound semiconductor nanowire

by Motoki Asano, Guoqiang Zhang, Takehiko Tawara, Hiroshi Yamaguchi, Hajime Okamoto
Published 2020-12-01

Investigation of Population Dynamics in 1.54-μm Telecom Transitions of Epitaxial (ErxSc1-x)2O3 Thin Layers for Coherent Population Manipulation: Weak Excitation Regime

by Satoru Adachi, Yoshihiro Kawakami, Reina Kaji, Takehiko Tawara, Hiroo Omi
Published 2018-05-01

Determination of phonon decay rate in p-type silicon under Fano resonance by measurement of coherent phonons

by Keiko Kato, Katsuya Oguri, Haruki Sanada, Takehiko Tawara, Tetsuomi Sogawa, Hideki Gotoh
Published 2015-09-01