Nano lett. Nano lett. van der Waals Materials for overcoming fundamental limitations in photonic Integrated circuitry Vyshnevyy Andrey A. Ermolaev Georgy A. Grudinin Dmitriy V. Voronin Kirill V. Kharichkin Ivan Mazitov Arslan Kruglov Ivan A. Yakubovsky Dmitry I. Mishra Prabhash Kirtaev Roman V. Arsenin Aleksey V. Novoselov Kostya S. Martin-Moreno Luis Volkov Valentyn S. 2023 research-article