| dc.contributor.author |
Anand, Asundi. |
| dc.contributor.author |
Singh, Vijay Raj. |
| dc.date.accessioned |
2011-09-08T06:59:21Z |
| dc.date.available |
2011-09-08T06:59:21Z |
| dc.date.copyright |
2006 |
| dc.date.issued |
2011-09-08 |
| dc.identifier.citation |
Anand, A., & Singh, V. R. (2006). Amplitude and phase analysis in digital dynamic holography. Optics letters, 31(16), 2420-2422. |
| dc.identifier.issn |
0146-9592 |
| dc.identifier.uri |
http://hdl.handle.net/10220/7026 |
| dc.description.abstract |
Lensless in-line digital holographic interferometry has the potential for vibration analysis of objects smaller than 5 mm in diameter. This is particularly useful for dynamic characterization of microelectromechanical systems devices. To achieve this, there is a need to magnify the object wave, which is done using a diverging beam. It is observed that an increase in the object-to-CCD distance increases the sensitivity of the amplitude-modulated time-average fringes. At the same time the effect on phase information that represents the mean static deformation of a vibrating object is studied. It is also observed that a reduction in the object-to-CCD distance increases the phase sensitivity as evidenced by the double-exposure time-average fringes. The experimental observation and a theoretical explanation for this contradictory phenomenon are presented. |
| dc.format.extent |
4 p. |
| dc.language.iso |
en |
| dc.relation.ispartofseries |
Optics letters |
| dc.subject |
DRNTU::Science::Physics::Optics and light. |
| dc.title |
Amplitude and phase analysis in digital dynamic holography. |
| dc.type |
Journal Article |
| dc.contributor.school |
School of Mechanical and Aerospace Engineering |
| dc.identifier.doi |
http://dx.doi.org/10.1364/OL.31.002420 |
| dc.description.version |
Accepted version |
| dc.identifier.rims |
143342 |
