This course can also be taken for academic credit as ECEA 5605, part of CU Boulder’s Master of Science in Electrical Engineering degree.
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
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Aprox. 38 horas para completar
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Programa - O que você aprenderá com este curso
3 horas para concluir
Semiconductor fundamentals
Light emitting diodes and semiconductor lasers is a really special course, and probably one of my favorite. In it, you will learn the fundamental operating principles, design, fabrication techniques and applications of two of the most widely used light emitting devices in the world today - light emitting diodes and semiconductor lasers. For module 1, 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.
3 horas para concluir
15 vídeos (Total 59 mín.), 2 leituras, 2 testes
15 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 Density, Part I5min
Carrier Density, Part II6min
Carrier Density, Part III5min
Intrinsic and Extrinsic Semiconductors4min
Fermi Levels with Dopants2min
Dopant Energy Levels, Part I2min
Dopant Energy Levels, Part II1min
Charge Neutrality, Part I3min
Charge Neutrality, Part II5min
2 leituras
Recommended References5min
MATLAB License5min
2 exercícios práticos
Semiconductor Fundamentals Practice45min
Semiconductor Fundamentals45min
3 horas para concluir
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.
3 horas para concluir
15 vídeos (Total 51 mín.), 1 leitura, 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 Semiconductors40s
Minority Carrier Lifetime, Part I3min
Minority Carrier Lifetime, Part II4min
Minority Carrier Lifetime, Part III2min
Radiative Efficiency1min
1 leituras
References5min
2 exercícios práticos
Radiative Recombination in Semiconductors Practice45min
Radiative Recombination in Semiconductors1h
2 horas para concluir
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.
2 horas para concluir
14 vídeos (Total 38 mín.), 1 leitura, 2 testes
14 videos
PN Junction2min
Current in PN Junction4min
Typical LED Structure1min
LED Losses, Part I3min
Total Internal Reflection2min
LED Losses, Part II58s
LED Efficiencies2min
Emission Spectra, Part I3min
Emission Spectra, Part II1min
Carrier Temperature2min
LED Wavelengths3min
Blue LEDs3min
Double Heterostructure LED2min
1 leituras
Recommended References5min
2 exercícios práticos
Light Emitting Diode (LED) Practice45min
Light Emitting Diode (LED)1h
2 horas para concluir
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.
2 horas para concluir
13 vídeos (Total 41 mín.), 1 leitura, 2 testes
13 videos
History of Semiconductor Lasers4min
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
Calculating Minimum Intensity Needed for Stimulated Emission6min
Stimulated Emission Rate, Part II52s
Gain in Semiconductor Lasers2min
Gain Spectrum28s
1 leituras
Recommended References5min
2 exercícios práticos
Fundamentals of Semiconductor Lasers Practice45min
Fundamentals of Semiconductor Lasers45min
oferecido por
Universidade do Colorado em 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.
Comece a trabalhar rumo ao seu mestrado
Este curso é parte da graduação 100% on-line Master of Science in Electrical Engineering da Universidade do Colorado em Boulder.
Caso seja aceito para o programa completo, seus cursos contarão para sua graduação.
Sobre Programa de cursos integrados Active Optical Devices
The courses in this specialization can also be taken for academic credit as ECEA 5605-5607, part of CU Boulder’s Master of Science in Electrical Engineering degree. Enroll here.
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.
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