High-frequency response and acoustic phonon contribution of the linear electro-optic effect in DAST
1997; Optica Publishing Group; Volume: 22; Issue: 8 Linguagem: Inglês
10.1364/ol.22.000564
ISSN1539-4794
AutoresRolf Spreiter, Ch. Bosshard, Feng Pan, Peter Günter,
Tópico(s)Solid-state spectroscopy and crystallography
ResumoWe present a simple method to measure the contribution from acoustic phonons to the linear electro-optic effect. A step voltage with a short rise time (600 ps) is applied to the sample, and the electro-optic response is measured in the time domain. For the organic salt 4-N, N-dimethylamino-4′-N′-methyl-stilbazolium tosylate (DAST), we obtained a negative contribution of r111a=-1.0±0.1 pm/V to the overall electro-optic coefficient of r111=48±5 pm/V λ=1535 nm. The electro-optic response was limited only by the rise time of the applied voltage, which corresponds to a frequency of 1 GHz.
Referência(s)