| Title: |
Refractive Index Changes in Lithium Niobate Crystals by High-Energy Particle Radiation |
| Author(s): |
K. Peithmann  , M.-R. Zamani-Meymian , M. Haaks , K. Maier , B. Andreas and I. Breunig |
| Journal: |
J. Opt. Soc. Am. B |
| Year: |
2006 |
| Volume: |
23 |
| Issue: |
10 |
| Pages: |
2107-2112 |
| DOI: |
10.1364/JOSAB.23.002107 |
| File URL: |
http://www.opticsinfobase.org/abstract.cfm?URI=josab-23-10-2107 |
| Abstract: |
Irradiation of lithium niobate crystals with 41 MeV 3He ions causes strong changes of the ordinary and extraordinary refractive indexes. We present a detailed study of this effect. Small fluence of irradiation already yields refractive index changes about 5×10−4; the highest values reach 3×10−3. These index modulations are stable up to 100°C and can be erased thermally, for which temperatures up to 500°C are required. A direct correlation between the refractive index changes and the produced lattice vacancies is found. |
