Valley-selective manipulation of moiré excitons through optical Stark effect

被引：0
|
作者：
Xu, Chenran [1 ,2 ]
Zhou, Jichen [1 ,2 ]
Shan, Zhexu [1 ,2 ]
Su, Wenjian [1 ,2 ]
Watanabe, Kenji [3 ]
Taniguchi, Takashi [4 ]
Wang, Dawei [1 ,2 ]
Tang, Yanhao [1 ,2 ]
机构：
[1] Zhejiang Univ, Sch Phys, Hangzhou 310027, Peoples R China
[2] Zhejiang Univ, Zhejiang Key Lab Micronano Quantum Chips & Quantum, Hangzhou 310027, Peoples R China
[3] Natl Inst Mat Sci, Res Ctr Elect & Opt Mat, 1-1 Namiki, Tsukuba 3050044, Japan
[4] Natl Inst Mat Sci, Res Ctr Mat Nanoarchitecton, 1-1 Namiki, Tsukuba, 3050044, Japan
来源：
CHINESE PHYSICS B | 2025年 / 34卷 / 01期
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
optical Stark effect; moir & eacute; exciton; transient reflection spectroscopy; 71.35.-y; 42.50.Md; 78.67.-n;
D O I：
10.1088/1674-1056/ad7c32
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Semiconductor moir & eacute; superlattices provide great platforms for exploring exotic collective excitations. Optical Stark effect, a shift of the electronic transition in the presence of a light field, provides an ultrafast and coherent method of manipulating matter states, which, however, has not been demonstrated in moir & eacute; materials. Here, we report the valley-selective optical Stark effect of moir & eacute; excitons in the WSe2/WS2 superlattice by using transient reflection spectroscopy. Prominent valley-selective energy shifts up to 7.8 meV have been observed for moir & eacute; excitons, corresponding to pseudo-magnetic fields as large as 34 T. Our results provide a route to coherently manipulate exotic states in moir & eacute; superlattices.
引用
收藏
页数：5
相关论文
共 50 条
  • [1] Valley-selective manipulation of moiré excitons through optical Stark effect
    徐晨燃
    周纪晨
    单哲旭
    苏文健
    Kenji Watanabe
    Takashi Taniguchi
    王大伟
    汤衍浩
    Chinese Physics B, 2025, 34 (01) : 18 - 22
  • [2] Valley-selective optical Stark effect probed by Kerr rotation
    LaMountain, Trevor
    Bergeron, Hadallia
    Balla, Itamar
    Stanev, Teodor K.
    Hersam, Mark C.
    Stern, Nathaniel P.
    PHYSICAL REVIEW B, 2018, 97 (04)
  • [3] Valley-selective optical Stark effect in monolayer WS2
    Edbert J. Sie
    James W. McIver
    Yi-Hsien Lee
    Liang Fu
    Jing Kong
    Nuh Gedik
    Nature Materials, 2015, 14 : 290 - 294
  • [4] Valley-selective optical Stark effect in monolayer WS2
    Sie, Edbert J.
    McIver, JamesW.
    Lee, Yi-Hsien
    Fu, Liang
    Kong, Jing
    Gedik, Nuh
    NATURE MATERIALS, 2015, 14 (03) : 290 - 294
  • [5] Valley-selective optical Stark effect of exciton-polaritons in a monolayer semiconductor
    LaMountain, Trevor
    Nelson, Jovan
    Lenferink, Erik J.
    Amsterdam, Samuel H.
    Murthy, Akshay A.
    Zeng, Hongfei
    Marks, Tobin J.
    Dravid, Vinayak P.
    Hersam, Mark C.
    Stern, Nathaniel P.
    NATURE COMMUNICATIONS, 2021, 12 (01)
  • [6] Valley-selective optical Stark effect of exciton-polaritons in a monolayer semiconductor
    LaMountain, Trevor
    Lenferink, Erik J.
    Amsterdam, Samuel H.
    Hersam, Mark C.
    Stern, Nathaniel P.
    2D PHOTONIC MATERIALS AND DEVICES III, 2020, 11282
  • [7] Valley-selective optical Stark effect of exciton-polaritons in a monolayer semiconductor
    Trevor LaMountain
    Jovan Nelson
    Erik J. Lenferink
    Samuel H. Amsterdam
    Akshay A. Murthy
    Hongfei Zeng
    Tobin J. Marks
    Vinayak P. Dravid
    Mark C. Hersam
    Nathaniel P. Stern
    Nature Communications, 12
  • [8] Ultrafast valley-selective coherent optical manipulation with excitons in WSe2 and MoS2 monolayers
    Slobodeniuk, Artur O.
    Koutensky, Petr
    Bartos, Miroslav
    Trojanek, Frantisek
    Maly, Petr
    Novotny, Tomas
    Kozak, Martin
    NPJ 2D MATERIALS AND APPLICATIONS, 2023, 7 (01)
  • [9] Ultrafast valley-selective coherent optical manipulation with excitons in WSe2 and MoS2 monolayers
    Artur O. Slobodeniuk
    Petr Koutenský
    Miroslav Bartoš
    František Trojánek
    Petr Malý
    Tomáš Novotný
    Martin Kozák
    npj 2D Materials and Applications, 7
  • [10] Optical spectroscopy of interlayer excitons in TMDC heterostructures: Exciton dynamics, interactions and giant valley-selective magnetic splitting
    Nagler, Philipp
    Mooshammer, Fabian
    Ballottin, Mariana V.
    Mitioglu, Anatolie A.
    Plechinger, Gerd
    Meier, Sebastian
    Paradiso, Nicola
    Strunk, Christoph
    Huber, Rupert
    Chernikov, Alexey
    Christianen, Peter C. M.
    Schueller, Christian
    Korn, Tobias
    ULTRAFAST PHENOMENA AND NANOPHOTONICS XXII, 2018, 10530
12345