Laser study of reversible nucleation sites in triglycine sulphate and applications to pyroelectric detectors
- 1 August 1972
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 4 (1), 39-49
- https://doi.org/10.1080/00150197208241518
Abstract
When a laser spot is focused on a Triglycine Sulphate plate used as a pyroelectric detector, a non-linear response is observed when the illumination is above a threshold of about 40W.cm-2. It appears that the items of primary significance are:(a) weak laser pulses can cause nucleation of domains whose polarization are opposed to the bulk polarization of the crystal.(b) this new process is elastic, polarization recovers at termination of irradition.(c) it can be inhibited by large electric fields.(d) it is time dependent in accordance with heat propagation to a nucleation site and nucleation growth processes of a domain.Application to pyroelectric detectors are considered.Keywords
This publication has 5 references indexed in Scilit:
- Response of a Triglycine Sulphate Pyroelectric Detector to High Frequencies (300 kHz)Journal of Applied Physics, 1969
- Sur les propriétés pyroélectriques de quelques matériaux et leur application à la détection de l'infrarougeJournal de Physique, 1965
- Ferroelectric domain delineation in triglycine sulphate and domain arrays produced by thermal shocksJournal of Physics and Chemistry of Solids, 1960
- Built-In Nucleation Sites in Triglycine SulfateJournal of Applied Physics, 1959
- Polarization Reversal by Sideways Expansion of Domains in Ferroelectric Triglycine SulfateJournal of Applied Physics, 1959