2. Introduction to the Physics of Light and Its Interaction with Materials
The study of light and its interaction with materials is crucial to optoelectronics. This chapter covers the wave-particle duality of light, its key properties, and how these properties facilitate essential interactions like absorption, reflection, and emission in optoelectronic devices. The historical milestones leading to the development of technologies such as LEDs and solar cells are discussed, along with recent advancements and emerging trends in the field.
Sections
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What we have learnt
- The dual nature of light as both a wave and a particle is fundamental to the physics of optoelectronics.
- Key interactions of light with materials include absorption, reflection, refraction, and emission.
- Historical milestones in optoelectronics, including the photoelectric effect and the invention of LEDs, have greatly impacted technology.
Key Concepts
- -- WaveParticle Duality
- The concept that light exhibits both wave-like and particle-like properties.
- -- Photon
- A quantum of light that carries energy proportional to its frequency and has no mass.
- -- Photoelectric Effect
- The phenomenon where light can eject electrons from a material when it strikes its surface.
- -- Optoelectronics
- A field that involves the study and application of electronic devices that source, detect, and control light.
- -- Semiconductor Laser
- A laser that uses a semiconductor for its gain medium, enabling compact, coherent light sources.
Additional Learning Materials
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