Optical Properties of Materials | Physics for Electrical Engineering
Subject and UNIT: Physics for Electrical Engineering: Unit IV: Optical Properties of Materials
Physics for Electrical Engineering: Unit IV: Optical Properties of Materials : PART B (16 Marks Questions)
Optical Properties of Materials | Physics for Electrical Engineering
Subject and UNIT: Physics for Electrical Engineering: Unit IV: Optical Properties of Materials
Physics for Electrical Engineering: Unit IV: Optical Properties of Materials : Part A '2' Marks Q and A
Definition, Principle, Waveform Diagram, Uses
Subject and UNIT: Physics for Electrical Engineering: Unit IV: Optical Properties of Materials
Plasmonics to nanoplasmonics refers or maslo generation, detection and manipulation of signals at optical frequencies along metal-dielectric interfaces in the nanometer scale.
Types, Device Construction, Working Principle
Subject and UNIT: Physics for Electrical Engineering: Unit IV: Optical Properties of Materials
The optoelectronic switching devices are very useful for computing and light activated logic gates applications.
Different electro optic modulators
Subject and UNIT: Physics for Electrical Engineering: Unit IV: Optical Properties of Materials
These are used to modulate the intensity or phase of light by an electric field. The different electro optic modulators are (a) Electrooptic modulators based on Kerr effect (b) Electrooptic modulators based on Pockels effect. (c) Electro absorption modulator by Franz Keldysh and stark effect. (d) Quantum well electro absorption modulator.
Definition, Properties
Subject and UNIT: Physics for Electrical Engineering: Unit IV: Optical Properties of Materials
The field of study in which the matter responds in a non linear manner to the incident light radiation is known as non linear optics. The term nonlinear refers to a situation where the the cause and effect are not linearly proportional to each other.
Subject and UNIT: Physics for Electrical Engineering: Unit IV: Optical Properties of Materials
The appearance of double refraction under the influence of an external agent is known as artificial double refraction or induced birefringence.
Organic Light Emitting Diode (OLED) - Construction, Working Principle, Drawbacks, Advantages, Disadvantages, Drawbacks, Applications, Uses
Subject and UNIT: Physics for Electrical Engineering: Unit IV: Optical Properties of Materials
The bound state of electron-hole system is called excition and it can be represented by the hydrogen-like model.
Subject and UNIT: Physics for Electrical Engineering: Unit IV: Optical Properties of Materials
In the last 1980s the interest in organic semiconductors demonstrated by the invention of electroluminescent devices and FETs made from polythiophene.
Definition, Construction, Working Principle, Characteristics, Advantages, Disadvantages, Applications, Uses
Subject and UNIT: Physics for Electrical Engineering: Unit IV: Optical Properties of Materials
It is a specially fabricated p-n junction diode. This diode emits laser light when it is forward - biased.
Definition, Construction, Working Principle, Advantages, Disadvantages, Applications, Uses
Subject and UNIT: Physics for Electrical Engineering: Unit IV: Optical Properties of Materials
The injection of electrons into the p - region from n- region makes a direct transition from the conduction band to valence band. Then, the electrons recombine with holes and emits photons of energy Eg'
Construction, Working Principle, VI Characteristics, Efficiency, Advantages, Disadvantages, Uses
Subject and UNIT: Physics for Electrical Engineering: Unit IV: Optical Properties of Materials
Common materials for solar cells include silicon (Si), Gallium Aresnide (GaAs), Indium Arsenide (InAs) and Cadmium Arsenide (CdAs). The most common is silicon.