Advanced Crystallization Methods for Thin-Film Lithium Niobate and Its Device Applications

Overview

Journal Materials (Basel)

Publisher MDPI

Date 2025 Mar 13

PMID 40077179

Authors

Rongbang Yang

Haoming Wei

Gongbin Tang

Bingqiang Cao

Kunfeng Chen

Affiliations

Soon will be listed here.

Abstract

Lithium niobate (LiNbO) has remarkable ferroelectric properties, and its unique crystal structure allows it to undergo significant spontaneous polarization. Lithium niobate plays an important role in the fields of electro-optic modulation, sensing and acoustics due to its excellent electro-optic and piezoelectric properties. Thin-film LiNbO (TFLN) has attracted much attention due to its unique physical properties, stable properties and easy processing. This review introduces several main preparation methods for TFLN, including chemical vapor deposition (CVD), molecular beam epitaxy (MBE), pulsed laser deposition (PLD), magnetron sputtering and Smartcut technology. The development of TFLN devices, especially the recent research on sensors, memories, optical waveguides and EO modulators, is introduced. With the continuous advancement of manufacturing technology and integration technology, TFLN devices are expected to occupy a more important position in future photonic integrated circuits.

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