Lec15 Optoelec Diodes

Lec15 Optoelec Diodes - EECS 320 Optoelectronic Diodes...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
EECS 320 Optoelectronic Diodes
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Optoelectronics? Light-emitting Diode Semiconductor Laser Visible Light Sensor
Background image of page 2
Optoelectronics Applications Information Technology Displays/Imaging Sensors Waveguide Photodiode M-Z Interferometer Sensor Al x O y cladding GaAs substrate Sensor arm Lighting, solar cells
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Optical Spectrum And Applications We have listed optoelectronic applications. Which wavelengths are of interest? What materials are important? Displays Imaging Sensors/Spectroscopy Information Processing
Background image of page 4
Semiconductor Optoelectronic Diodes Detectors convert optical signals into electrical signals Emitters are a source of optical radiation Photodetectors: primary purpose to detect photons Solar Cells: primary purpose is photo- to electrical energy conversion Light-emitting diodes (LEDs) Lasers – may be obtained using optical cavity
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Radiative Recombination, Generation Radiative Recombination (Emitter) Generation (Detector) E=E G E k E C E V E=E G E k E C E V
Background image of page 6
Optical Generation The momentum of a photon is small Indirect Bandgap (e.g. Si) Direct Bandgap (e.g. GaAs)
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Optical Recombination The momentum of a photon is small Indirect Bandgap (e.g. Si) Direct Bandgap (e.g. GaAs)
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/31/2011 for the course EECS 320 taught by Professor Philips during the Spring '06 term at University of Michigan.

Page1 / 19

Lec15 Optoelec Diodes - EECS 320 Optoelectronic Diodes...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online