Scalable Functionalization of Optical Fibers Using Atomically Thin Semiconductors
Scalable Functionalization of Optical Fibers Using Atomically Thin Semiconductors
复制标题
DOI：
10.1002/adma.202003826
复制
发表时间：
2020-05
影响因子：
29.4
通讯作者：
Gia Quyet Ngo;A. George;Robin Tristan Klaus Schock;A. Tuniz;Emad Najafidehaghani;Ziyang Gan;Nils C. Gei
中科院分区：
文献类型：
--
作者：
Gia Quyet Ngo;A. George;Robin Tristan Klaus Schock;A. Tuniz;Emad Najafidehaghani;Ziyang Gan;Nils C. Gei
原子薄的过渡金属二硫属化物由于其激子驱动的与光的线性和非线性相互作用而非常有希望用于集成光电和光子系统。将它们集成到光纤中为光通信、遥感和全光纤光电子学带来了新的机会。然而，在光纤上可扩展和可再现地沉积高质量单层是一个挑战。在这里，单层二硫化钼和WS2晶体的微结构暴露芯光纤的核心上的化学气相沉积及其与光纤的导模的相互作用的报告。展示了2D功能化波导的两种不同的应用可能性，以发挥其潜力。首先，激子2D材料光致发光被同时激发并与光纤模式收集，为遥感开辟了一条新的途径。然后，它表明，三次谐波产生修改的高度本地化的非线性极化的单层，产生一个新的途径来定制光纤中的非线性光学过程。预计这些结果可能会导致基于光纤的技术的重大进步。
Atomically thin transition metal dichalcogenides are highly promising for integrated optoelectronic and photonic systems due to their exciton‐driven linear and nonlinear interactions with light. Integrating them into optical fibers yields novel opportunities in optical communication, remote sensing, and all‐fiber optoelectronics. However, the scalable and reproducible deposition of high‐quality monolayers on optical fibers is a challenge. Here, the chemical vapor deposition of monolayer MoS2 and WS2 crystals on the core of microstructured exposed‐core optical fibers and their interaction with the fibers’ guided modes are reported. Two distinct application possibilities of 2D‐functionalized waveguides to exemplify their potential are demonstrated. First, the excitonic 2D material photoluminescence is simultaneously excited and collected with the fiber modes, opening a novel route to remote sensing. Then it is shown that third‐harmonic generation is modified by the highly localized nonlinear polarization of the monolayers, yielding a new avenue to tailor nonlinear optical processes in fibers. It is anticipated that the results may lead to significant advances in optical‐fiber‐based technologies.