Coherent modulation of chiral nonlinear optics with crystal symmetry
作者机构：Department of Electronics and NanoengineeringAalto University02150EspooFinland QTF Centre of ExcellenceDepartment of Applied PhysicsAalto University02150EspooFinland Advanced Research Institute of Multidisciplinary SciencesBeijing Institute of Technology100081BeijingChina
出 版 物：《Light(Science & Applications)》 (光（科学与应用)（英文版）)
年 卷 期：2022年第11卷第8期
页 面：1909-1915页
核心收录：
基 金：Aalto Centre for Quantum Engineering,Academy of Finland(grants:314810,333982,336144,and 336818) Academy of Finland Flagship Programme(320167,PREIN) the European Union’s Horizon 2020 research and innovation program(Grant agreement Nos.820423,S2QUIP,965124,FEMTOCHIP) the EU H2020-MSCA-RISE-872049(IPN-Bio) ERC advanced grant(834742) HORIZON-MSCA-2021-PF-01-01(680225)
主 题：polarization interconnection symmetry
摘 要：Light modulation is of paramount importance for photonics and optoelectronics. Here we report all-optical coherent modulation of third-harmonic generation (THG) with chiral light via the symmetry enabled polarization selectivity. The concept is experimentally validated in monolayer materials (MoS2) with modulation depth approaching ~100%, ultra-fast modulation speed (~130 fs), and wavelength-independence features. Moreover, the power and polarization of the incident optical beams can be used to tune the output chirality and modulation performance. Major performance of our demonstration reaches the fundamental limits of optical modulation: near-unity modulation depth, instantaneous speed (ultra-fast coherent interaction), compact footprint (atomic thickness), and unlimited operation bandwidth, which hold an ideal optical modulation solution for emerging and future nonlinear optical applications (e.g., interconnection, imaging, computing, and quantum technologies).
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