Diffraction Courses

Introduction to Acoustics (Part 2)
Korea Advanced Institute of Science and Technology via Coursera

Waves & Optics
edX

Introduction to Reciprocal Space
Indian Institute of Technology Madras via Swayam

Symmetry and Structure in the Solid State
Indian Institute of Science Bangalore via Swayam

Experimental Physics - II
Indian Institute of Technology, Kharagpur via Swayam

Optical Engineering
Indian Institute of Technology Madras via Swayam

Optical Sensors
Indian Institute of Technology Roorkee via Swayam

Fundamentos de Oscilaciones y Ondas para Ingeniería
Universitat Politècnica de València via edX

Experimental Physics - II
NPTEL via YouTube

Introduction to Photonics
NPTEL via YouTube