Fabrication and applications of lithium niobate micro/nano structures
Fabrication and applications of lithium niobate micro/nano structures
Nonlinear optical frequency conversion is reported from single crystal lithium niobate nanostructures. Structuring on the nanometer scale is achieved by a combination of ferroelectric domain inversion and chemical etching. A 2D hexagonal lattice of inverted ferroelectric domains is formed after selective application of an external electric field at room temperature. Long (15 hr) etching in hot (60°) HF acid results in differential etching of opposite ferroelectric domain faces while side etching sharpens the end point of the superstructures. The end structure terminates in pyramidal shaped tips of sub-wavelength dimensions and ultra sharp edges. A scanning electron microscopy (SEM) image of a tip array is shown in the attached figure. A High resolution side view of the sharp tip is shown in the inset picture. We have observed highly efficient nonlinear optical second harmonic generation (SHG) from single tips. The efficiency of SHG is two orders of magnitude higher as compared to that of the unstructured crystal.
Mailis, Sakellaris
233e0768-3f8d-430e-8fdf-92e6f4f6a0c4
Paturzo, Melania
dd5012fe-ce27-4852-9ade-aa87911e55aa
Eason, Robert W.
e38684c3-d18c-41b9-a4aa-def67283b020
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf
Feldman, Jochen
ca57aa8c-4cc4-4fce-9a4f-09d2c58b63d0
2004
Mailis, Sakellaris
233e0768-3f8d-430e-8fdf-92e6f4f6a0c4
Paturzo, Melania
dd5012fe-ce27-4852-9ade-aa87911e55aa
Eason, Robert W.
e38684c3-d18c-41b9-a4aa-def67283b020
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf
Feldman, Jochen
ca57aa8c-4cc4-4fce-9a4f-09d2c58b63d0
Mailis, Sakellaris, Paturzo, Melania, Eason, Robert W., Lagoudakis, Pavlos and Feldman, Jochen
(2004)
Fabrication and applications of lithium niobate micro/nano structures.
8th International Symposium on Ferroic Domains and Micro- to Nanoscopic Structures (ISFD-8), Tsukuba, Japan.
24 - 27 Aug 2004.
1 pp
.
Record type:
Conference or Workshop Item
(Other)
Abstract
Nonlinear optical frequency conversion is reported from single crystal lithium niobate nanostructures. Structuring on the nanometer scale is achieved by a combination of ferroelectric domain inversion and chemical etching. A 2D hexagonal lattice of inverted ferroelectric domains is formed after selective application of an external electric field at room temperature. Long (15 hr) etching in hot (60°) HF acid results in differential etching of opposite ferroelectric domain faces while side etching sharpens the end point of the superstructures. The end structure terminates in pyramidal shaped tips of sub-wavelength dimensions and ultra sharp edges. A scanning electron microscopy (SEM) image of a tip array is shown in the attached figure. A High resolution side view of the sharp tip is shown in the inset picture. We have observed highly efficient nonlinear optical second harmonic generation (SHG) from single tips. The efficiency of SHG is two orders of magnitude higher as compared to that of the unstructured crystal.
Text
Mailis Abstract isfd-8.pdf
- Other
More information
Published date: 2004
Venue - Dates:
8th International Symposium on Ferroic Domains and Micro- to Nanoscopic Structures (ISFD-8), Tsukuba, Japan, 2004-08-24 - 2004-08-27
Identifiers
Local EPrints ID: 41707
URI: http://eprints.soton.ac.uk/id/eprint/41707
PURE UUID: edf05142-86b4-4a21-abd0-6a46b0a10c50
Catalogue record
Date deposited: 10 May 2007
Last modified: 16 Mar 2024 02:38
Export record
Contributors
Author:
Sakellaris Mailis
Author:
Melania Paturzo
Author:
Pavlos Lagoudakis
Author:
Jochen Feldman
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics