Projects per year
Abstract
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).
Original language | English |
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Article number | 216 |
Journal | Light-Science & Applications |
Volume | 11 |
Issue number | 1 |
DOIs | |
Publication status | Published - 8 Jul 2022 |
MoE publication type | A1 Journal article-refereed |
Keywords
- coherent modualtion
- chiral nonlinear optics
- monolayer material
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FEMTOCHIP: FEMTOSECOND LASER ON A CHIP
Sun, Z., Li, D., Liu, P., Turunen, M., Das, S., Mohsen, A., Liapis, A. & Atalaia Rosa, J.
01/03/2021 → 29/02/2024
Project: EU: Framework programmes funding
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FAST: Ultrafast Data Production with Broadband Photodetectors for Active Hyperspectral Space Imaging
Sun, Z., Akkanen, S., Pajunpää, T., Cui, L., Nigmatulin, F. & Das, S.
01/01/2021 → 31/12/2023
Project: Academy of Finland: Other research funding
Press/Media
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The handedness of light holds the key to better optical control
18/07/2022
1 item of Media coverage
Press/Media: Media appearance