Results 81 to 90 of about 4,144 (203)

Tunable and stable micro-ring resonator based on thin-film lithium tantalate

APL Photonics
As ferroelectric materials, lithium tantalate and lithium niobate share similar material characteristics, such as a high Pockels effect and nonlinear optical coefficients. When compared to lithium niobate, lithium tantalate offers a higher optical damage
Jiayang Yu, Ziliang Ruan, Yu Xue, Haohua Wang, Ranfeng Gan, Tian Gao, Changjian Guo, Kaixuan Chen, Xin Ou, Liu Liu   +9 more
doaj   +1 more source

ANALYSIS OF CLUSTER FORMATION IN MODELED LITHIUM NIOBATE CRYSTALS

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2019
In the framework of the semiclassical atomistic model, clusterization processes in a lithium niobate crystal LiNbO3 were investigated. Computer modeling of the energy-equilibrium cluster of a lithium niobate crystal LiNbO3 based on oxygen octahedrons ...
O.R. Starodub, V.M. Voskresenskij, N.V. Sidorov, M.N. Palatnikov   +3 more
doaj   +1 more source

Breaking the Size‐Tolerance Trade‐off in Vertical Couplers via Adjoint‐Based Inverse Design

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
A physics‐guided inverse design framework combines physical insight with adjoint optimization by placing dense control points in the phase‐near‐matched region. This guided strategy yields a 20 μm III–V‐on‐silicon coupler with 98.11% efficiency, > 80% efficiency at ± $\mathit{\pm }$ 1.1 μm misalignment, and record high tolerance per unit length ...
Ruiqi Liu, Suo Wang, Zeqiu Liu, Shiyu Mei, Jiahui Chi, Haiyang Yu, Yulian Cao, Jianguo Liu   +7 more
wiley   +1 more source

A Parallel Multi-channel Lithium Niobate Electro-optic Modulator

Guangtongxin yanjiu
【Objective】In order to solve the technical problems of large volume, low integration and small bandwidth of electro-optic modulator, a design method of parallel multi-channel thin film Lithium niobate electro-optic modulator is proposed.
YANG Pengyi
doaj  

Nonlinear Photonics for Sub-Terahertz Sources [PDF]

EPJ Web of Conferences
Terahertz technologies offer unique advantages for communication, sensing, and imaging, yet integrated platforms struggle to perform efficiently in this range. Thin-film lithium niobate, a nonlinear photonic platform, enables compact, broadband, and high-
Rajabali Shima, Zhu Xinrui, Warner Hana K., Song Yunxiang, Magalhaes Leticia, Shams Ansari Amirhassan, Lončar Marko   +6 more
doaj   +1 more source

Radiation‐Free In‐Gap Finite Barrier Bound States in a Lithium Niobate‐Based Honeycomb Lattice

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
This work demonstrates radiation‐free finite barrier bound states (FBBSs), successfully overcoming the high propagation loss challenge inherent in conventional FBBS designs while enabling flexible electro‐optic tunability. These findings establish a versatile platform for on‐chip integrated, high‐modulation‐efficiency electro‐optic modulators and ...
Yiru Du, Zhixiong Xie, Songyan Hou, Liangliang Liu, Chunyu Huang, Song Zhu, Zhuo Li, Yu Luo, Hao Hu   +8 more
wiley   +1 more source

Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration

Advanced Materials, Volume 38, Issue 43, 3 August 2026.
A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang, Byeongseok Ryu, Sujeong Ahn, Junhyub Kim, Myeonghun Jang, Jeong Ho Cho, Won‐Gun Koh, Hyungsuk Lee   +7 more
wiley   +1 more source

Compact Fourier‐Transform Spectrometer on Thin‐Film Lithium Niobate via Mode‐Circulating Modulation

Advanced Photonics Research, Volume 7, Issue 8, August 2026.
Schematic diagram of the proposed compact on‐chip Fourier‐transform spectrometer on thin‐film lithium niobate that exploits mode‐circulating electro‐optic modulation, in which guided light is sequentially converted among multiple spatial modes to accumulate multiple phase modulation events within a single physical modulation arm.
Hao Yao, Jiayao Deng, Yuzhe Sun, Hao Zhang, Yinglu Zhang, Mengke Wang, Jieyun Wu, Kaixin Chen   +7 more
wiley   +1 more source

Piezoelectric interfacial waves in two-medium structures

Archives of Acoustics, 2014
The theory is given and a numerical analysis is presented of propagation of piezoelectric interfacial waves along a perfectly conducting plane that separates two piezoelectric half-spaces of different crystallographic orientations or two half-spaces of ...
W. LAPRUS
doaj  

High-performance and fabrication-tolerant edge coupler on thin film lithium niobate based on a three-dimensional inverse taper

APL Photonics
Thin film lithium niobate has been widely considered as a promising photonic integration platform. However, due to the non-vertical sidewall of lithium niobate etching, it is challenging to design an efficient fiber coupler for the submicron-sized ...
Bin Chen, Ziliang Ruan, Mai Wang, Shengqi Gong, Liu Liu   +4 more
doaj   +1 more source