Physics of Optoelectronic Devices SHUN LIEN CHUANG Professor of Electrica! and Computer Engineering University of Illinois at Urbana-Champaign A Wiley-Interscience Publication John Wiley & Sons, Inc. New York / Chichester / Brisbane / Toronto / Singapore
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Physics of Optoelectronic Devices
SHUN LIEN CHUANG Professor of Electrica! and Computer Engineering University of Illinois at Urbana-Champaign
A Wiley-Interscience Publication
John Wiley & Sons, Inc.
New York / Chichester / Brisbane / Toronto / Singapore
Chapter 4. Theory of Electronic Band Structures in Semiconductors 124
4.1 The Bloch Theorem and the k • p Method for Simple Bands 124
4.2 Kane's Model for Band Structure: The k • p Method With the Spin-Orbit Interaction 129
Xll CONTENTS
4.3 Luttinger-Kohn's Model: The k • p Method for Degenerate Bands 137
4.4 The Effective Mass Theory for a Single Band and Degenerate Bands 141
4.5 Strain Effects on Band Structures 144 4.6 Electronic States in an Arbitrary One-Dimensional
Potential 157 4.7 Kronig-Penney Model for a Superlattice 166 4.8 Band Structures of Semiconductor Quantum Wells 175 4.9 Band Structures of Strained Semiconductor
Quantum Wells 185 Problems 190 References 195
Chapter 5. Electromagnetics 200
5.1 General Solutions to Maxwell's Equations and Gauge Transformations 200
5.2 Time-Harmonic Fields and Duality Principle 203 5.3 Plane Wave Reflection From a Layered Medium 205 5.4 Radiation and Far-Field Pattern 214 Problems 219 References 220
PART II PROPAGATION OF LIGHT
Chapter 6. Light Propagation in Various Media 223
6.1 Plane Wave Solutions for Maxwell's Equations in Homogeneous Media 223
6.2 Light Propagation in Isotropie Media 224 6.3 Light Propagation in Uniaxial Media 228 Problems 240 References 241
Chapter 7. Optical Waveguide Theory 242
7.1 Symmetrie Dielectric Slab Waveguides 242 7.2 Asymmetrie Dielectric Slab Waveguides 257 7.3 Ray Optics Approach to the Waveguide Problems 261 7.4 Rectangular Dielectric Waveguides 263 7.5 The Effective Index Method 270 7.6 Wave Guidance in a Lossy or Gain Medium 273 Problems 278 References 281
CONTENTS xiu
Chapter 8. Waveguide Couplers and Coupled-Mode Theory 283
8.1 Waveguide Couplers 283 8.2 Coupling of Modes in the Time Domain 288 8.3 Coupled Optical Waveguides 294 8.4 Improved Coupled-Mode Theory and Its Applications 302 8.5 Applications of Optical Waveguide Couplers 309 8.6 Distributed Feedback Structures 315 Problems 323 References 331
PART III GENERATION OF LIGHT
Chapter 9. Optical Processes in Semiconductors 337
9.1 Optical Transitions Using Fermi's Golden Rule 337 9.2 Spontaneous and Stimulated Emissions 345 9.3 Interband Absorption and Gain 352 9.4 Interband Absorption and Gain in a Quantum-Well
Structure 358 9.5 Momentum Matrix Elements of Bulk and
Quantum-Well Semiconductors 366 9.6 Intersubband Absorption 373 9.7 Gain Spectrum in a Quantum-Well Laser with