Modulation of light underpins a central part of modern optoelectronics.Con-ventional optical modulators based on refractive-index and absorption varia-tion in the presence of an electric field serve as the workhorse f...Modulation of light underpins a central part of modern optoelectronics.Con-ventional optical modulators based on refractive-index and absorption varia-tion in the presence of an electric field serve as the workhorse for diverse photonic technologies.However,these approaches based on electro-refraction or electro-absorption effect impose limitations on frequency converting and signal amplification.Lanthanide-activated phosphors offer a promising plat-form for nonlinear frequency conversion with an abundant spectrum.Here,we propose a novel approach to achieve frequency conversion and digital modula-tion of light signal by coupling lanthanide luminescence with an electrically responsive ferroelectric host.The technological benefits of such paradigm-shifting solution are highlighted by demonstrating a quasi-continuous and enhancement of the lanthanide luminescence.The ability to locally manipulate light emission can convert digital information signals into visible waveforms,and visualize electrical logic and arithmetic operations.The proof-of-concept device exhibits perspectives for developing light-compatible logic functions.These results pave the way to design more controllable lanthanide photonics with desired opto-electronic coupling.展开更多
基金the financial support from the National Natural Science Foundation of China(No.52233014,12074044,11874230,12274243)the Research Grants Council of Hong Kong(PolyU SRFS2122-5S02)+1 种基金the Fund of State Key Laboratory of Information Photonics and Optical Communications(IPOC2021ZT05,IPOC2022A02)the Fundamental Research Funds for the Central Universities(BUPT).
文摘Modulation of light underpins a central part of modern optoelectronics.Con-ventional optical modulators based on refractive-index and absorption varia-tion in the presence of an electric field serve as the workhorse for diverse photonic technologies.However,these approaches based on electro-refraction or electro-absorption effect impose limitations on frequency converting and signal amplification.Lanthanide-activated phosphors offer a promising plat-form for nonlinear frequency conversion with an abundant spectrum.Here,we propose a novel approach to achieve frequency conversion and digital modula-tion of light signal by coupling lanthanide luminescence with an electrically responsive ferroelectric host.The technological benefits of such paradigm-shifting solution are highlighted by demonstrating a quasi-continuous and enhancement of the lanthanide luminescence.The ability to locally manipulate light emission can convert digital information signals into visible waveforms,and visualize electrical logic and arithmetic operations.The proof-of-concept device exhibits perspectives for developing light-compatible logic functions.These results pave the way to design more controllable lanthanide photonics with desired opto-electronic coupling.
