Výsledky vyhledávání - "Ishihara, Jun"

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Enhanced interlayer electron transfer by surface treatments in mixed-dimensional van der Waals semiconductor heterostructures

Autor: Odagawa, Takeshi, Yamamoto, Sota, Zhang, Chaoliang, Koyama, Kazuki, Ishihara, Jun, Mariani, Giacomo, Kunihashi, Yoji, Sanada, Haruki, Nitta, Junsaku, Kohda, Makoto

We investigate the excitonic species in WS$_{2}$ monolayers transferred onto III-V semiconductor substrates with different surface treatments. When the III-V substrates were covered with amorphous native oxides, negatively charged excitons dominate t

Externí odkaz: http://arxiv.org/abs/2404.12787

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Higher-order Bloch spheres: A generalized representation of electron spin states with azimuthal phase factor

Autor: Sato, Sota, Matsumoto, Toshiki, Nakano, Yuichiro, Ishihara, Jun, Miyamoto, Katsuhiko, Omatsu, Takashige, Morita, Ken

Using the similarity between spin states on the Bloch sphere (BS) and polarization states on the Poincare sphere (PS), we construct higher-order spin states on the higher-order BS corresponding to higher-order polarization states of photons on the hi

Externí odkaz: http://arxiv.org/abs/2301.08024

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Imprinting spatial helicity structure of vector vortex beam on spin texture in semiconductors

Autor: Ishihara, Jun, Mori, Takachika, Suzuki, Takuya, Sato, Sota, Morita, Ken, Kohda, Makoto, Ohno, Yuzo, Miyajima, Kensuke

Publikováno v: Phys. Rev. Lett. 130, 126701 (2023)

We present the transfer of the spatially variant polarization of topologically structured light to the spatial spin texture in a semiconductor quantum well. The electron spin texture, which is a circular pattern with repeating spin-up and spin-down s

Externí odkaz: http://arxiv.org/abs/2209.12496

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