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Development of Spectral Domain Low Coherence Interferometry for the Measurement of Multilayer Structure

By
Anup Kumar Sharma
(2008JID2939)

Under The guidance of
Dr. D. S. Mehta


Instrument Design & Development Centre
Indian Institute of Technology
Delhi

Contents
Basic principle of Low Coherence Interferometry (LCI).
Low coherent sources
Coherence gating
Fourier Domain Low Coherence Interferometry
Objective
Realization of Spectral Domain LCI using Michelson Interferometer
Work d ....etc

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Coherence in text and hypertext


Abstract:

The concept of text coherence was developed for linear text, i.e. text of sequentially
organized content. The present article addresses to what extent this concept
can be applied to hypertext. Following the introduction (section 1), I will define
different aspects of text coherence (section 2). I will then explain the importance
of the sequential order of text constituents for coherence-building, as explored by
empirical studies on text comprehens ....etc

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Optical Coherence Tomography (OCT)

Introduction
Optical Coherence Tomography (OCT) is an imaging technique that is similar in principle to ultrasound, but with superior resolution. It relies on exposing a sample to a burst of light and then measuring the reflective response from different depths and is therefore capable of scanning non-invasively beneath the surface of the sample. In ultrasound imaging, it is relatively easy to measure the time delay of each reflected packet. However, for light pulses, interferometry must be used to measure ....etc

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Presented by
Saloni Goel


Cardiac CT Angiography Image Reconstruction
Introduction
The use of Content Adaptive Mesh model(CAMM) for Cardiac CT reconstruction is explored.
Cardiac CT Angiography images are being reconstructed.
Content-Adaptive Mesh Generation
Mesh modeling of an image involves partitioning the image into a collection of non-overlapping (generally polygon) patches, called mesh elements.
With a mesh model one can strategically place the mesh nodes more densely in regions con ....etc

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Optical Coherence Tomography (OCT) is an imaging technique that is similar in principle to ultrasound, but with superior resolution. It relies on exposing a sample to a burst of light and then measuring the reflective response from different depths and is therefore capable of scanning non-invasively beneath the surface of the sample. In ultrasound imaging, it is relatively easy to measure the time delay of each reflected packet. However, for light pulses, interferometry must be used to measure the displacement with meaningful accuracy. The amou ....etc

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