Nanoscale surface domain formation on the +z face of lithium niobate by pulsed UV laser illumination
Single-crystal congruent lithium niobate samples have been illuminated on the +z crystal face by pulsed ultraviolet laser wavelengths below (248 nm) and around (298-329 nm) the absorption edge. Following exposure, etching with hydrofluoric acid reveals highly regular precise domain-like features of...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2005.
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| Subjects: | |
| Online Access: | Get fulltext |
| LEADER | 01488 am a22002293u 4500 | ||
|---|---|---|---|
| 001 | 16073 | ||
| 042 | |a dc | ||
| 100 | 1 | 0 | |a Valdivia, C.E. |e author |
| 700 | 1 | 0 | |a Sones, C.L. |e author |
| 700 | 1 | 0 | |a Scott, J.G. |e author |
| 700 | 1 | 0 | |a Mailis, S. |e author |
| 700 | 1 | 0 | |a Eason, R.W. |e author |
| 700 | 1 | 0 | |a Scrymgeour, D.A. |e author |
| 700 | 1 | 0 | |a Gopalan, V. |e author |
| 700 | 1 | 0 | |a Jungk, T. |e author |
| 700 | 1 | 0 | |a Soergel, E. |e author |
| 700 | 1 | 0 | |a Clark, I. |e author |
| 245 | 0 | 0 | |a Nanoscale surface domain formation on the +z face of lithium niobate by pulsed UV laser illumination |
| 260 | |c 2005. | ||
| 856 | |z Get fulltext |u https://eprints.soton.ac.uk/16073/1/16073.pdf | ||
| 520 | |a Single-crystal congruent lithium niobate samples have been illuminated on the +z crystal face by pulsed ultraviolet laser wavelengths below (248 nm) and around (298-329 nm) the absorption edge. Following exposure, etching with hydrofluoric acid reveals highly regular precise domain-like features of widths ~150-300 nm, exhibiting distinct three-fold symmetry. Examination of illuminated unetched areas by scanning force microscopy shows a corresponding contrast in piezoelectric response. These observations indicate the formation of nanoscale ferroelectric surface domains, whose depth has been measured via focused ion beam milling to be ~2 micron. We envisage this direct optical poling technique as a viable route to precision domain-engineered structures for waveguide and other surface applications. | ||
| 655 | 7 | |a Article | |