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
Este curso forma parte de Programa Especializado - Active Optical Devices
Light Emitting Diodes and Semiconductor Lasers
ofrecido por
Programa - Qué aprenderás en este curso
Semana
1Semiconductor 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 videos (Total 57 minutos), 3 readings, 2 quizzes
14 videos
Introduction to Light Emitting Diodes and Semiconductor Lasers1m
Introduction to Semiconductor Fundamentals2m
Energy Bands and Semiconductors5m
Definition of a Semiconductor2m
Density of States7m
Carrier Density5m
Carrier Density, Part II6m
Carrier Density, Part III5m
Intrinsic and Extrinsic Semiconductors4m
Dopant Energy Levels, Part I2m
Dopant Energy Levels, Part II1m
Charge Neutrality, Part I3m
Charge Neutrality, Part II5m
3 lecturas
Recommended References5m
Reference Values and Equations for Homework10m
MATLAB License5m
2 ejercicios de práctica
Semiconductor Fundamentals Practice45m
Semiconductor Fundamentals45m
Semana
2Radiative 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 videos (Total 51 minutos), 2 readings, 2 quizzes
15 videos
Radiative and Non-Radiative Transitions, Part I3m
Radiative and Non-Radiative Transitions, Part II1m
K Selection Rules5m
Direct and Indirect Bandgaps3m
Derivation of Absorption Coefficient2m
Joint Density of States, Direct Bandgap Semiconductor3m
Direct and Indirect Bandgaps, Part II6m
Absorption in Indirect Bandgap Semiconductor3m
Radiative Transition Rate4m
Examples of Radiative Transition Rates in Direct and Indirect Gap Semiconductors40s
Minority Carrier Lifetime, Part I3m
Minority Carrier Lifetime, Part II4m
Minority Carrier Lifetime, Part III2m
Radiative Efficiency1m
2 lecturas
References5m
Reference Values and Equations for Homework #210m
2 ejercicios de práctica
Radiative Recombination in Semiconductors Practice45m
Radiative Recombination in Semiconductorss
Semana
3Light 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 videos (Total 38 minutos), 2 readings, 2 quizzes
14 videos
PN Junction2m
Current in PN Junction4m
Typical LED Structure1m
LED Losses, Part I3m
Total Internal Reflection2m
LED Losses, Part II58s
LED Efficiencies2m
Emission Spectra, Part I3m
Emission Spectra, Part II1m
Carrier Temperature2m
LED Wavelengths3m
Blue LEDs3m
Double Heterostructure LED2m
2 lecturas
Recommended References5m
Reference Values and Equations for Homework #310m
2 ejercicios de práctica
Light Emitting Diode (LED) Practice45m
Light Emitting Diode (LED)s
Semana
4Fundamentals 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 videos (Total 34 minutos), 2 readings, 2 quizzes
12 videos
History of Semiconductor Laser4m
Fundamental Processes in a Semiconductor Laser3m
Non-Equilibrium Carrier Distribution5m
Quasi-Fermi Levels3m
Density of Photons2m
Einstein Coefficients, Part I3m
Einstein Coefficients, Part II3m
Stimulated Emission Rate, Part I3m
Stimulated Emission Rate, Part II52s
Gain in Semiconductor Lasers2m
Gain Spectrum28s
2 lecturas
Recommended References5m
Reference Values and Equations for Homework #410m
2 ejercicios de práctica
Fundamentals of Semiconductor Lasers Practice45m
Fundamentals of Semiconductor Lasers45m
Instructores
Juliet Gopinath
Associate ProfessorElectrical, Computer, and Energy Engineering
Acerca de 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.
Acerca del programa especializado 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.
Preguntas Frecuentes
¿Cuándo podré acceder a las lecciones y tareas?
Una vez que te inscribes para obtener un Certificado, tendrás acceso a todos los videos, cuestionarios y tareas de programación (si corresponde). Las tareas calificadas por compañeros solo pueden enviarse y revisarse una vez que haya comenzado tu sesión. Si eliges explorar el curso sin comprarlo, es posible que no puedas acceder a determinadas tareas.
¿Qué recibiré si me suscribo a este Programa especializado?
Cuando te inscribes en un curso, obtienes acceso a todos los cursos que forman parte del Programa especializado y te darán un Certificado cuando completes el trabajo. Se añadirá tu Certificado electrónico a la página Logros. Desde allí, puedes imprimir tu Certificado o añadirlo a tu perfil de LinkedIn. Si solo quieres leer y visualizar el contenido del curso, puedes auditar el curso sin costo.
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