Este curso faz parte do Programa de cursos integrados Active Optical Devices
Light Emitting Diodes and Semiconductor Lasers
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Informações sobre o curso
LEDs and Semiconductor Lasers Course Introduction
You will learn about semiconductor light emitting diodes (LEDs) and lasers, and the important rules for their analysis, planning, design, and implementation. You will also apply your knowledge through challenging homework problem sets to cement your understanding of the material and prepare you to apply in your career.
Course Learning Outcomes
At the end of this course you will be able to…
(1) Design a semiconductor light emitting diode and analyze efficiency
(2) Design a semiconductor laser
(3) Choose suitable semiconductor materials for light emitting devices
Programa - O que você aprenderá com este curso
1
Seção
Semiconductor fundamentals
I am really looking forward to introducing you to the magical world of semiconductors. In this module, we will review the basics of semiconductor physics and you will learn how we can manipulate the materials to tailor electrical and optical properties.
14 vídeos (Total de 57 min), 3 leituras, 2 testes
14 videos
Introduction to Light Emitting Diodes and Semiconductor Lasers1min
Introduction to Semiconductor Fundamentals2min
Energy Bands and Semiconductors5min
Definition of a Semiconductor2min
Density of States7min
Carrier Density5min
Carrier Density, Part II6min
Carrier Density, Part III5min
Intrinsic and Extrinsic Semiconductors4min
Dopant Energy Levels, Part I2min
Dopant Energy Levels, Part II1min
Charge Neutrality, Part I3min
Charge Neutrality, Part II5min
3 leituras
Recommended References5min
Reference Values and Equations for Homework10min
MATLAB License5min
2 exercícios práticos
Semiconductor Fundamentals Practice45min
Semiconductor Fundamentals45min
2
Seção
Radiative recombination in semiconductors
In the last module, we learned about the basics of semiconductor physics. In this module, we will apply this knowledge to understand how semiconductors emit light, and the basis for optoelectronic devices such as lasers and light emitting diodes.
15 vídeos (Total de 51 min), 2 leituras, 2 testes
15 videos
Radiative and Non-Radiative Transitions, Part I3min
Radiative and Non-Radiative Transitions, Part II1min
K Selection Rules5min
Direct and Indirect Bandgaps3min
Derivation of Absorption Coefficient2min
Joint Density of States, Direct Bandgap Semiconductor3min
Direct and Indirect Bandgaps, Part II6min
Absorption in Indirect Bandgap Semiconductor3min
Radiative Transition Rate4min
Examples of Radiative Transition Rates in Direct and Indirect Gap Semiconductorsmin
Minority Carrier Lifetime, Part I3min
Minority Carrier Lifetime, Part II4min
Minority Carrier Lifetime, Part III2min
Radiative Efficiency1min
2 leituras
References5min
Reference Values and Equations for Homework #210min
2 exercícios práticos
Radiative Recombination in Semiconductors Practice45min
Radiative Recombination in Semiconductorsmin
3
Seção
Light Emitting Diode (LED)
In the last module, we learned about how semiconductors can emit light. In this module, we will apply this knowledge to learn about the basics of light emitting diodes. These devices are everywhere you turn and you now have the tools to develop a complete understanding of their operation.
14 vídeos (Total de 38 min), 2 leituras, 2 testes
14 videos
PN Junction2min
Current in PN Junction4min
Typical LED Structure1min
LED Losses, Part I3min
Total Internal Reflection2min
LED Losses, Part IImin
LED Efficiencies2min
Emission Spectra, Part I3min
Emission Spectra, Part II1min
Carrier Temperature2min
LED Wavelengths3min
Blue LEDs3min
Double Heterostructure LED2min
2 leituras
Recommended References5min
Reference Values and Equations for Homework #310min
2 exercícios práticos
Light Emitting Diode (LED) Practice45min
Light Emitting Diode (LED)min
4
Seção
Fundamentals of semiconductor lasers
In the last module, we learned about light emitting diodes or LEDs. Now, we will use our knowledge of semiconductors and in particular, radiative recombination, to tackle an even more powerful device, the semiconductor laser. This technology is probably the most successful laser technology of our time, with every compact disc player incorporating a 6-cent semiconductor laser. I hope you enjoy this unit as much as I do.
12 vídeos (Total de 34 min), 2 leituras, 2 testes
12 videos
History of Semiconductor Laser4min
Fundamental Processes in a Semiconductor Laser3min
Non-Equilibrium Carrier Distribution5min
Quasi-Fermi Levels3min
Density of Photons2min
Einstein Coefficients, Part I3min
Einstein Coefficients, Part II3min
Stimulated Emission Rate, Part I3min
Stimulated Emission Rate, Part IImin
Gain in Semiconductor Lasers2min
Gain Spectrummin
2 leituras
Recommended References5min
Reference Values and Equations for Homework #410min
2 exercícios práticos
Fundamentals of Semiconductor Lasers Practice45min
Fundamentals of Semiconductor Lasers45min
Instrutores
Juliet Gopinath
Associate ProfessorElectrical, Computer, and Energy Engineering
Sobre University of Colorado Boulder
CU-Boulder is a dynamic community of scholars and learners on one of the most spectacular college campuses in the country. As one of 34 U.S. public institutions in the prestigious Association of American Universities (AAU), we have a proud tradition of academic excellence, with five Nobel laureates and more than 50 members of prestigious academic academies.
Sobre o Programa de cursos integrados Active Optical Devices
This Active Optical Devices specialization is designed to help you gain complete understanding of active optical devices by clearly defining and interconnecting the fundamental physical mechanisms, device design principles, and device performance. You will study and gain active experience with light emitting semiconductor devices like light emitting diodes and lasers, nanophotonics, optical detectors, and displays.
Specialization Learning Outcomes:
*Analyze and design semiconductor light sources, and surrounding optical systems
*Analyze and design detection systems for LIDAR, microscopy and cameras
*Analyze and design systems for optical device systems that can adapt to the environment at hand.
*Use lasers and optical electronics in electronic systems through an understanding of the interaction of light and atoms, laser rate equations and noise in photo-detection.
Perguntas Frequentes – FAQ
When will I have access to the lectures and assignments?
Once you enroll for a Certificate, you’ll have access to all videos, quizzes, and programming assignments (if applicable). Peer review assignments can only be submitted and reviewed once your session has begun. If you choose to explore the course without purchasing, you may not be able to access certain assignments.
What will I get if I subscribe to this Specialization?
When you enroll in the course, you get access to all of the courses in the Specialization, and you earn a certificate when you complete the work. Your electronic Certificate will be added to your Accomplishments page - from there, you can print your Certificate or add it to your LinkedIn profile. If you only want to read and view the course content, you can audit the course for free.
What is the refund policy?
Is financial aid available?
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