Lensless Fourier transform digital holographic interferometer for diffusivity measurement of miscible transparent liquids

Gyanendra Sheoran; Arun Anand; Chandra Shakher

doi:10.1063/1.3123408

Lensless Fourier transform digital holographic interferometer for diffusivity measurement of miscible transparent liquids

Rev Sci Instrum. 2009 May;80(5):053106. doi: 10.1063/1.3123408.

Authors

Gyanendra Sheoran¹, Arun Anand, Chandra Shakher

Affiliation

¹ Lasers Applications and Holography Laboratory, Instrument Design Development Centre, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India.

PMID: 19485491
DOI: 10.1063/1.3123408

Abstract

Lensless Fourier transform digital holographic technique is applied for measurement of diffusion in miscible transparent liquid solutions. The phase information at two time instances and a synthetic plane wavefront is used to determine the diffusion coefficient. The experiment was conducted to measure the diffusion coefficient of aqueous solution of NaCl in water. The measured values of diffusion coefficient deviates approximately 1.06% from the values given in literature.