mirage

Amplitude and phase analysis in digital dynamic holography

DSpace/Manakin Repository

 

Search DR-NTU


Advanced Search Subject Search

Browse

My Account

Amplitude and phase analysis in digital dynamic holography

Show full item record

Title: Amplitude and phase analysis in digital dynamic holography
Author: Anand, Asundi; Singh, Vijay Raj
Copyright year: 2006
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.
Subject: DRNTU::Science::Physics::Optics and light.
Type: Journal Article
Series/ Journal Title: Optics letters
School: School of Mechanical and Aerospace Engineering
Version: Accepted version

Files in this item

Files Size Format View
OL paper-published.pdf 260.7Kb PDF View/Open
   

DOI Query

- Get published version (via Digital Object Identifier)
   

This item appears in the following Collection(s)

Show full item record

Statistics

Total views

All Items Views
Amplitude and phase analysis in digital dynamic holography 355

Total downloads

All Bitstreams Views
OL paper-published.pdf 216

Top country downloads

Country Code Views
China 79
United States of America 67
Singapore 26
Japan 5
United Kingdom 4

Top city downloads

city Views
Mountain View 44
Beijing 31
Singapore 26
Tianjin 6
Shenyang 5

Downloads / month

  2014-07 2014-08 2014-09 total
OL paper-published.pdf 0 0 1 1