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Updated: Jun 14, 2026

Fabrication of Nanoheight Channels Incorporating Surface Acoustic Wave Actuation via Lithium Niobate for Acoustic Nanofluidics
Published on: February 5, 2020
Suppression of mid-infrared light absorption in undoped congruent lithium niobate crystals
J R Schwesyg1, C R Phillips, K Ioakeimidi
1E. L. Ginzton Laboratory, Stanford University, Stanford, California 94305, USA. schwesyg@physik.uni-bonn.de
Abstract:
Absorption measurements on 5 mol. % MgO-doped and undoped congruent lithium niobate (LiNbO(3)) crystals revealed absorption bands in the wavelength range of 2500-2800 nm, caused by incorporated hydrogen ions. High-temperature annealing was applied to the congruent LiNbO(3) (CLN) crystals, which decreased the absorption significantly. Then the annealed CLN crystals were periodically poled. As an application of the low-loss annealed CLN crystal, the operation of a 1550 nm pumped singly resonant CW optical parametric oscillator, resonant around 2600 nm, using a periodically poled crystal was demonstrated.

