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Optical Sensors

Optical Sensors. Instructor: Prof. Sachin Kumar Srivastava, Department of Physics, IIT Roorkee. This course provides detailed insight of the field of optical biosensors and their basic working principles. Starting with the introduction of basic components, characteristics, performance parameters and fabrication techniques , this course brings the learner to the mesmerizing field of sensors based on basic principles of optics. The basic optical phenomena/characteristics and their sensing applications have been discussed in detail. The optical properties of tissues and optics in the biomaterials has been discussed providing some further insights into optical biosensing applications. The course also ends with notes on terahertz sensing applications and future directions of research. (from nptel.ac.in)

Lecture 02 - Sensor Fabrication and Characterization


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Lecture 01 - Introduction
Lecture 02 - Sensor Fabrication and Characterization
Lecture 03 - Basic Optics for Optical Sensing: Electromagnetic Waves
Lecture 04 - Basic Optics for Optical Sensing: Polarization
Lecture 05 - Basic Optics for Optical Sensing: Propagation of an EM wave at an Interface
Lecture 06 - Basic Optics for Optical Sensing: Propagation of an EM wave at an Interface (cont.)
Lecture 07 - Basic Optics for Optical Sensing: Total Internal Reflection
Lecture 08 - Basic Optics for Optical Sensing: Evanescent Waves and How to Use them for Sensing Applications
Lecture 09 - Basic Optics for Optical Sensing: Absorption and Dispersion Properties of Materials
Lecture 10 - Plasmons
Lecture 11 - Plasmons: Dispersion Relation of Surface Plasmons
Lecture 12 - Plasmons: Intensity and Phase Modulation Techniques
Lecture 13 - Plasmons: Field Enhancements in Surface Plasmons
Lecture 14 - Plasmons: Localized Surface Plasmons
Lecture 15 - Plasmons: Localized Surface Plasmon Resonance based Sensors
Lecture 16 - Multiple Optical Sensors of Different Mechanisms
Lecture 17 - Interference based Sensors
Lecture 18 - Interference, Diffraction and Optical Fiber Sensors
Lecture 19 - Review of Biomaterial Optics
Lecture 20 - Terahertz based Detection and Circular Dichroism