Tag Archives: Physics

Topic Wise Video Lecture Notes on Biomedical Photonics

Aim of Course
The course should provide knowledge about the physical properties of light and its impact and interaction with biological tissue.
Course Content
Optical properties of biological tissue. Light transport in tissue. Therapeutic window. Light transport models. Measurement of tissue optical properties. Optical coherence tomography, multi-photon excitation, flourescens, etc.

To download all the Video Lecture Notes, Topic wise click on the computer icon on Left hand side.

 

1 I Introduction
Course Content
Why Use Optical Methods?
Why Should You Learn Biomedical Optics?
Fundamentals of Optics
Overview of Spectroscopy
Classical Description of Light
Light-Tissue Interaction

LASER: New source for X-rays providing Higher resolution

Laser physicists have, for the first time, succeeded in real-time observation of laser-accelerated fast electron swarms in conjunction with a plasma wave consisting of positively charged helium ions and slow background electrons. The findings will help development of new X-ray sources with much higher resolution than current devices allow for biomedical applications, as well as facilitate development of new electron and light sources for exploring the structure of atoms and molecules.

Fully Funded Summer Research Training in IISc Bengaluru for SC/ST students

INDIAN  INSTITUTE OF SCIENCE

BANGALORE – 560 012.

Indian Institute of Science invites applications for

IISc. Summer Fellowship in Science and Engineering for SC/ST Students – 2011

Eligibility:

ST/ST students studying I year M.Sc in  science disciplines (Biological Sciences/ Physics, Chemistry/ Mathematics) or  III year B.E./B.Tech or equivalent degree, during the academic year 2010-11.

 

S

election Criteria:

IISc. will evolve a suitable criteria for selecting the candidates for the programme.

Financial Support:

Video Lecture Notes On Biomedical Optics

VIDEOS

link

1

UNIT NO

I

TOPICS COVERED

Introduction
Course Content
Why Use Optical Methods?
Why Should You Learn Biomedical Optics?
Fundamentals of Optics
Overview of Spectroscopy
Classical Description of Light
Light-Tissue Interaction

2 II Basic Optics
What is Light
Short Wavelengths
Radiation Power
Radiation Energy
Radiation Intensity
Collection of Light
Integrating Spheres
Detector
III Tissue Optical Properties
Optical Properties vs Optical Measurements
3 Absorption
Scattering
Anisotropy
Isotropic Scattering
Anisotropic Values
Summary
4 Scattering Cases
Rayleight Scattering
Mie Theory Model
Summary Optical Properties

Fully Funded Phd in Biomedical Engineering in Netherlands

Position Description: Optical coherence tomography (OCT) is a biomedical imaging technique that is used to make 3D cross sectional images of tissue. Current OCT systems are bulky and expensive. In this project we will work on novel technologies that can lower the cost and form factor of OCT. The work will focus on building a handheld swept-source OCT based on an integrated optics platform for waveguiding. Image processing and correction will be studied as motions of a handheld OCT probe need to be corrected for. The OCT device will be tested in application areas such as medical diagnostics and/or forensics. This project is part of the recently started IOP Photonic devices program “Low-cost handheld optical coherence tomography device”.

Lecture Notes On Fiber Optics & Laser in Medicine for Biomedical Engineers

Fibre optic strands

optical fibers

These lecture notes will provide an insight to the Biomedical Engineer interested in this field
They are good for beginners but still better for revision as well.

Lecture-1

Fiber Fabrication:

Two basic techniques in fabrication of all glass optical waveguides.

Vapor-phase oxidation process

– Direct melt methods

Lecture 2

Fiber properties & losses

Lecture-3

Introduction to laser

lecture 4