Gate-tunable quantum pathways of high harmonic generation in graphene

Autor: Cha, Soonyoung, Kim, Minjeong, Kim, Youngjae, Choi, Shinyoung, Kang, Sejong, Kim, Hoon, Yoon, Sangho, Moon, Gunho, Kim, Taeho, Lee, Ye Won, Cho, Gil Young, Park, Moon Jeong, Kim, Cheol-Joo, Kim, B. J., Lee, JaeDong, Jo, Moon-Ho, Kim, Jonghwan

Under strong laser fields, electrons in solids radiate high-harmonic fields by travelling through quantum pathways in Bloch bands in the sub-laser-cycle timescales. Understanding these pathways in the momentum space through the high-harmonic radiatio

Externí odkaz: http://arxiv.org/abs/2210.08553

MXene-based high performance microfluidic pH sensors for electronic tongue

Autor: Kim, Hyuk Jin, Lee, Chung Won, Park, Sohyeon, Choi, Sungkyun, Park, Sung Hyuk, Nam, Gi Baek, Ryu, Jung-El, Eom, Tae Hoon, Kim, Byungsoo, Kim, Cheol-Joo, Kim, Soo Young, Jang, Ho Won

Publikováno v: In Sensors and Actuators: B. Chemical 15 June 2024 409

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{\theta}-Tunable Photoluminescence from Interlayer Excitons in Twisted Bilayer Graphene

Autor: Patel, Hiral, Huang, Lujie, Kim, Cheol-Joo, Park, Jiwoong, Graham, Matt W.

Publikováno v: Stacking Angle-Tunable Photoluminescence from Interlayer Exciton States in Twisted Bilayer Graphene, Nature Communications, 10, 1445, 2019, https://www.nature.com/articles/s41467-019-09097-x

Using resonant 2-photon excitation of interlayer electrons in twisted bilayer graphene (tBLG), we resolve photoluminescence (PL) that tunes spectrally with stacking angle, {\theta}. This weak signal is 4- 5$\times$ larger than the non-resonant backgr

Externí odkaz: http://arxiv.org/abs/1806.06312