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September 23, 2023


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This course includes:

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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)

Course Curriculum

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

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