Influence of piezoceramic to fused silica plate thickness on the radii of curvature of piezoelectric bimorph mirror

Manjakkal, L. , Susanth, S., Vasanthakumari, K.G., Dileep Kumar, C.J. and Raghu, N. (2017) Influence of piezoceramic to fused silica plate thickness on the radii of curvature of piezoelectric bimorph mirror. Review of Scientific Instruments, 83(1), 015001. (doi:10.1063/1.3673642) (PMID:22299977)

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Abstract

Piezoelectric based bimorph mirrors (PBM) find extensive use in focusing of x-ray beams. Many optical instruments require use of PBM whose radii of curvature can be tuned precisely. The 100 mm and 300 mm PBMs were fabricated with varying piezoelectric to fused silica plate thicknesses. The radii of curvature of free standing mirrors were measured as a function of voltage and it was found to decrease with increasing voltage. For a given piezoelectric plate thickness, as the fused silica thickness increases, the radii of curvature was found to increase owing to increase in stiffness of the mirror. On the other hand, for a given fused silica plate thickness, when the piezoelectric plate thickness is increased, the radii of curvature are decreased for a given electric field, due to increase in generated force. This study brings out the influence of piezoceramic to fused silica plate thickness on the radii of curvature of PBM.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Manjakkal, Dr Libu
Authors: Manjakkal, L., Susanth, S., Vasanthakumari, K.G., Dileep Kumar, C.J., and Raghu, N.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Review of Scientific Instruments
Publisher:AIP Publishing
ISSN:0034-6748
ISSN (Online):1089-7623
Published Online:01 January 2012

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