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Data Storage and Retrieval using
Photorefractive Crystals
(Holographic Memories)

A Thesis presented for the degree of Doctor of Philosophy

in

The Faculty of Science

University of Calicut, Calicut

by

RAVINDER KUMAR BANYAL

Indian Institute of Astrophysics Bangalore, 560034, INDIA

October, 2005

Dedicated to

The Sweet Memories of My Grandfather

iii

DECLARATION

I hereby declare that the matter contained in this thesis is the result of the investi- gations carried out by me at the Indian Institute of Astrophysics, Bangalore, under the supervision of Dr. K. Neelakandan. This thesis has not been submitted for the award of any degree, diploma, associateship, fellowship etc. of any university or institute.

Dr. K. Neelakandan
(Thesis Supervisor)

Ravinder Kumar Banyal (Ph.D. Candidate)

Indian Institute of Astrophysics
Bangalore 560 034, INDIA
October, 2005

iv

CERTIFICATE

This is to certify that the thesis entitled “Data Storage and Retrieval using Photorefractive Crystals (Holographic Memories)” submitted to the Univer- sity of Calicut by Mr. Ravinder Kumar Banyal for the award of the degree of Doctor of Philosophy in the faculty of Science, is based on the results of the investigations carried out by him under my supervision and guidance, at the Indian Institute of Astrophysics, Bangalore. This thesis has not been submitted for the award of any degree, diploma, associateship, fellowship etc. of any university or institute.

Dr. K. Neelakandan

(Thesis Supervisor)

Professor, Department of Physics, University of Calicut, Kerala October, 2005

v

DECLARATION

I hereby declare that the matter contained in this thesis is the result of the investi- gations carried out by me at the Indian Institute of Astrophysics, Bangalore, under the supervision of Dr. B. Raghavendra Prasad. This thesis has not been submitted for the award of any degree, diploma, associateship, fellowship etc. of any university or institute.

Dr. B. Raghavendra Prasad (Thesis Supervisor)

Indian Institute of Astrophysics Bangalore 560 034, INDIA October, 2005

Ravinder Kumar Banyal (Ph.D. Candidate)...
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