Scalable functionalization of optical fibers using atomically thin semiconductors

Abstract

Atomically thin transition metal dichalcogenides are highly promising for integrated optoelectronic and photonic systems due to their exciton-driven linear and nonlinear interaction with light. Integrating them into optical fibers yields novel opportunities in optical communication, remote sensing, and all-fiber optoelectronics. However, scalable and reproducible deposition of high quality monolayers on optical fibers is a challenge. Here, we report 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. We demonstrate two distinct application possibilities of 2D-functionalized waveguides to exemplify their potential. First, we simultaneously excite and collect excitonic 2D material photoluminescence with the fiber modes, opening a novel route to remote sensing. Then we show 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. We anticipate that our results may lead to significant advances in optical fiber based technologies.

References in corpus (11)

• Atomically thin MoS2: A new direct-gap semiconductor
• Coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides
• Anomalous Lattice Vibrations of Single and Few-Layer MoS2
• Control of valley polarization in monolayer MoS2 by optical helicity
• MoS_2 as an ideal material for valleytronics: valley-selective circular dichroism and valley Hall effect
• Strong light-matter coupling in two-dimensional atomic crystals
• Exciton-polaritons in van der Waals heterostructures embedded in tunable microcavities
• Robust optical emission polarization in MoS2 monolayers through selective valley excitation
• Ultra-strong nonlinear optical processes and trigonal warping in MoS${}_2$ layers
• Low-loss composite photonic platform based on 2D semiconductor monolayers
• Common pulse retrieval algorithm: a fast and universal method to retrieve ultrashort pulses

Cited by in corpus (6)

• Parametric Nonlinear Optics with Layered Materials and Related Heterostructures
• Second- and third-order optical susceptibilities in bidimensional semiconductors near excitons states
• Challenges on Optical Printing of Colloidal Nanoparticles
• Photoluminescence-Based Gas Sensing with MoS2 Monolayers
• In-fiber second-harmonic generation with embedded two-dimensional materials
• Mode-center Placement of Monolayer WS${}_2$ in a Photonic Polymer Waveguide