LANDOLT-BRNSTEIN GROUP III: Condensed MatterVOLUME 34 Semiconductor Quantum Structures SUBVOLUME C2 Optical Properties (Part 2) Introductory material 5 Low-dimensional structures of II-VI compounds 1
5.1 General properties (H. KALT) 1
5.1.1 Introduction 1
5.1.2 Some basic properties of bulk IIVI compounds 1
5.1.2.1 Band-gap energies 1
5.1.2.2 Excitonic properties 2
5.1.3 Alignment of electronic bands 3
5.1.4 References for 5.1 4
5.2 Quantum-well structures of IIVI compounds (H. KALT) 6
5.2.1 (Hg,X)Te quantum wells 6
5.2.1.1 Low-density regime 7
5.2.1.1.1 Electronic states in quantum wells 7
5.2.1.1.2 Electron-hole and excitonic transitions 8
5.2.1.2 Modification of the optical properties by internal fields 10
5.2.1.3 Modification of the optical properties by external fields 10
5.2.1.4 High-density regime and nonlinear optics 10
5.2.1.5 References for 5.2.1 11
5.2.2 CdTe quantum wells 13
5.2.2.1 Low-density regime 14
5.2.2.1.1 Electronic states in quantum wells 14
5.2.2.1.2 Excitonic transitions 15
5.2.2.1.3 Localized excitons 25
5.2.2.1.4 Polariton effects 26
5.2.2.2 Modification of the optical properties by internal fields 29
5.2.2.2.1 Strained quantum wells 29
5.2.2.2.2 Piezoelectric quantum wells 29
5.2.2.3 Modification of the optical properties by external fields 31
5.2.2.3.1 Hydrostatic pressure 31
5.2.2.3.2 External electric fields 31
5.2.2.3.3 External magnetic fields 33
5.2.2.4 The intermediate-density regime 36
5.2.2.4.1 Exciton-exciton interaction 36
5.2.2.4.2 Excitonic lasing and optical gain 36
5.2.2.4.3 Biexcitons 37
5.2.2.5 The high-density regime 38
5.2.2.5.1 One-component plasma (2DEG) 38
5.2.2.5.2 Electron-hole plasma 38
Coherent dynamics and relaxation of optical excitations 39
Coherent interactions 39
Dephasing mechanisms and homogeneous linewidth 39
Relaxation processes 40
Transport phenomena of excitons and trions 40
Radiative and nonradiative recombination 41
References for 5.2.2 42
(Cd,Zn)Te, (Cd,Mn)Te, and (Cd,Mg)Te quantum wells 49
Low-density regime 49
Electronic states in quantum wells 49
Excitonic transitions 49
Modification of the optical properties by external fields 51
The intermediate and high-density regimes 51
Coherent dynamics and relaxation of optical excitations 52
References for 5.2.3 53
ZnTe quantum wells 54
Electronic states in quantum wells 54
Excitons and polaritons 55
Optical nonlinearities and high-density effects 56
References for 5.2.4 57
Telluride diluted-magnetic semiconductor quantum-well structures: (Hg,Mn)Te, 58
(Cd,Mn)Te, and (Zn,Mn)Te QWs; Se/Te type-II QWs
Zeeman splitting and its applications 58
Giant Zeeman splitting 58
Magnetic-field induced type-I to type-II transition 62
Interface effects in non-DMS/DMS QW structures 64
Magnetic-field induced circular birefringence 64
Coulomb-bound electron-hole pairs and complexes (low-density regime) 66
Excitonic transitions 66
Magnetic polarons 67
Donor-acceptor pair recombination 68
The intermediate and high-density regime 68
Spin-aligned excitons 68
Spin-aligned magnetoplasma 68
Two-dimensional electron or hole gas 69
Coherent dynamics and relaxation of optical excitations 69
Coherent spin dynamics and spin injection 69
Spin relaxation 70
Exciton dephasing and homogeneous broadening 71
Formation dynamics of magnetic polarons 71
Recombination processes 71
References for 5.2.5 72
Telluride/Selenide quantum wells 78
Low-density regime 78
High-density regime and dynamics 81
References for 5.2.6 82
HgSe and (Hg,Cd)Se quantum wells 84
References for 5.2.7 84


5.2.8 CdSe quantum wells 85
5.2.8.1 Low-density regime 85
5.2.8.2 High-density regime 87
5.2.8.3 Relaxation dynamics 87
5.2.8.4 References for 5.2.8 88
5.2.9 (Cd,Zn)Se quantum wells 90
5.2.9.1 Low-density regime 90
5.2.9.1.1 Electronic states in quantum wells 90
5.2.9.1.2 Excitonic transitions 91
5.2.9.1.3 Localized excitons 95
5.2.9.1.4 Polariton effects 95
5.2.9.2 Modifications of the optical properties by internal fields 96
5.2.9.2.1 Strained quantum wells 96
5.2.9.2.2 Piezoelectric fields 96
5.2.9.3 Modifications of the optical properties by external fields 96
5.2.9.3.1 Hydrostatic pressure 96
5.2.9.3.2 External magnetic fields 96
5.2.9.3.3 External electric fields 97
5.2.9.4 The intermediate-density regime 99
5.2.9.4.1 Excitonic interactions and Pauli blocking 99
5.2.9.4.2 Two-photon absorption and second harmonic generation 99
5.2.9.4.3 Localized biexcitons 99
5.2.9.4.4 Excitonic and biexcitonic stimulated emission and optical gain 100
5.2.9.5 The high-density regime 103
5.2.9.5.1 Fermi-edge singularity 103
5.2.9.5.2 Correlated electron-hole plasma 103
5.2.9.6 Coherent dynamics and relaxation of optical excitations 105
5.2.9.6.1 Coherent interactions and dephasing 105
5.2.9.6.2 Relaxation processes 105
5.2.9.6.3 Transport phenomena 108
5.2.9.6.4 Dynamics of gain and stimulated emission 108
5.2.9.6.5 Radiative and non-radiative recombination 108
5.2.9.7 References for 5.2.9 109
5.2.10 ZnSe quantum wells 116
5.2.10.1 Low-density regime 117
5.2.10.1.1 Electronic states in quantum wells 117
5.2.10.1.2 Excitonic transitions 118
5.2.10.2 Modification of the optical properties by internal fields 122
5.2.10.2.1 Strain and piezoelectric fields 122
5.2.10.2.2 Transient internal space charge fields 122
5.2.10.3 Modification of the optical properties by external fields 123
5.2.10.3.1 Hydrostatic pressure 123
5.2.10.3.2 Electric fields 123
5.2.10.3.3 Magnetic fields 123
5.2.10.4 The intermediate-density regime 125
5.2.10.4.1 Exciton-exciton interaction 125
5.2.10.4.2 Biexcitons 125
Excitonic gain and lasing 126
Nonlinear optical effects 126
The high-density regime 126
One-component plasma (2DEG) 126
Electron-hole plasma 126
Optical gain and lasing 126
Coherent dynamics and relaxation of optical excitations 127
Coherent interactions 127
Dephasing mechanisms and homogeneous linewidth 128
Hot-exciton relaxation 129
Spin relaxation 129
Lateral transport 130
Radiative and nonradiative recombination 130
References for 5.2.10 131
Selenide-based quantum wells containing Be, Mg, or S in the well 137
References for 5.2.11 138
Selenide diluted-magnetic semiconductor quantum-well structures: (Cd,Mn)Se, 139
(Zn,Mn)Se, and (Zn,Fe)Se QWs
Zeeman splitting and its applications 139
Giant Zeeman splitting 139
Magnetic-field induced type-I to type-II transition 141
Interface effects in non-DMS/DMS QW structures 142
Coulomb-bound electron-hole pairs and complexes (low-density regime) 143
Excitonic transitions 143
Magnetic polarons 143
The intermediate and high-density regime 144
Two-dimensional electron gas 144
Coherent dynamics and relaxation of optical excitations 144
Spin dephasing and relaxation 144
Dynamics of magnetic polarons 146
Recombination processes 147
References for 5.2.12 148
Zincblende Sulphide/Selenide type-II quantum wells 150
References for 5.2.13 151
CdS/ZnS and (Cd,Zn)S/ZnS quantum wells 152
Low-density regime 152
Electronic states in quantum wells 152
Excitonic transitions 152
Modification of the optical properties by external fields 155
Intermediate and high-density regime
Exciton dynamics
References for 5.2.14
ZnS/(Zn,Mg)S quantum wells
References for 5.2.15
ZnO and (Zn,Cd)O quantum wells
Low-density regime
Electronic states in quantum wells
Excitonic transitions

155 
155 
156 
157 
158 
159 
159 
159 
159 


Modification of the optical properties by internal fields 162

Strain and piezoelectric fields 162

The intermediate-density regime 162

Biexcitons 162

Excitonic gain and lasing 162

Dynamics of optical excitations 162

References for 5.2.16 163

Superlattices and coupled quantum-well structures of II-VI compounds 165

(H.
 KALT)(Hg,X)Te superlattices 165

Low-density regime 165

Electronic states in superlattices 165

Electron-hole and excitonic transitions 166

Polariton effects 167

Modification of the optical properties by internal fields 167

Modification of the optical properties by external fields 167

High-density regime 167

References for 5.3.1 168

CdTe/(Cd,X)Te and (Cd,X)Te/ZnTe superlattices and coupled quantum wells 169

Low-density regime 169

Electronic states in superlattices 169

Excitonic transitions 169

Polariton effects 173

Modification of the optical properties by internal fields 173

Modification of the optical properties by external fields 174

Transient effects and dynamics 174

References for 5.3.2 176

Telluride diluted magnetic semiconductor superlattices and coupled quantum 178

wells
Electronic states in DMS SLs
Spin states in DMS SLs
Magnetic polarons
Polaritons
Dynamic processes
References for 5.3.3

178 
178 
179 
180 
180 
181 


Telluride/Selenide and Telluride/Sulphide superlattices 182

Electronic states in type-II SLs 182

Excitons and isoelectronic traps 183

Modification of the optical properties by external fields 183

High-excitation regime 183

References for 5.3.4 184

CdSe, ZnSe, (Cd,Zn)Se, and (Zn,Mg)(S,Se) superlattices and coupled quantum 186

wells
Low-density regime 186

Electronic states in strained-layer superlattices 186

Optical functions in superlattices and multiple quantum wells 186

Excitonic transitions 186

Modification of the optical properties by internal fields 187



5.3.5.3 Modification of the optical properties by external fields	187
5.3.5.3.1 Hydrostatic pressure	187
5.3.5.3.2 Magnetic field	187
5.3.5.4 The intermediate-density regime	188
5.3.5.5 The high-density regime	188
5.3.5.6 Transient effects and dynamics	188
5.3.5.7 References for 5.3.5	189
5.3.6 Selenide DMS superlattices and coupled quantum wells	191
5.3.6.1 Low-density regime	191
5.3.6.1.1 Electronic states in diluted magnetic semiconductor superlattices (DMS SLs) 191
5.3.6.1.2 Spin states in DMS SLs	192
5.3.6.1.3 Excitonic transitions	194
5.3.6.2 Spin-relaxation and spin injection	194
5.3.6.3 References for 5.3.6	195
5.3.7 CdSe/CdS and CdS/ZnSe intrinsic Stark superlattices	197
5.3.7.1 Low-density regime	197
5.3.7.2 High-density regime	198
5.3.7.3	Transient effects and dynamics 199
5.3.7.4	References for 5.3.7 200
5.3.8	Zincblende Sulphide/Selenide superlattices 201
References for 5.3.8 202
5.3.9	CdS/ZnS, CdS/(Cd,ZnS), and (Cd,Zn)S/ZnS superlattices 203
References for 5.3.9 204
5.4	Quantum-wire structures (H. KALT) 205
5.4.1	Telluride quantum wires 206
5.4.1.1	Low-density regime 206
5.4.1.2	High-density regime 208
5.4.1.3	Relaxation dynamics 208
5.4.2	Selenide quantum wires 209
5.4.2.1	Low-density regime 209
5.4.2.1.1	Excitonic transitions 209
5.4.2.1.2	Electron-phonon coupling 211
5.4.2.1.3	Piezoelectric fields 211
5.4.2.2	High-density regime 213
5.4.2.2.1	Biexcitons 213
5.4.2.2.2	Optical gain 213
5.4.2.3	Relaxation dynamics 213
5.4.2.3.1	Dephasing mechanisms and homogeneous linewidth 213
5.4.2.3.2	Exciton recombination 214
5.4.3	Sulfide quantum wires 214
5.4.4	Oxide quantum wires 215
5.4.5	Semimagnetic quantum wires 215
5.4.5.1	Mn-related transitions 215
5.4.5.2	Magneto-optics 215
5.4.6	References for 5.4 216

5.5 II-VI Quantum dots I  Nanocrystals (U. WOGGON, S.V. GAPONENKO) 220
5.5.1 HgTe 220
5.5.2 CdTe 221
5.5.2.1 The low-density regime 222
5.5.2.1.1 Size-dependent energy states 222
5.5.2.1.2 Splitting of states 226
5.5.2.1.3 Interaction with phonons 227
5.5.2.1.4 Modification of the optical properties by external fields 228
5.5.2.1.4.1 External electric fields 228
5.5.2.1.4.2 External magnetic fields 228
5.5.2.1.4.3 Hydrostatic pressure 228
5.5.2.1.5 Impurity states 228
5.5.2.2 The intermediate-density regime 228
5.5.2.3 The high-density regime 229
5.5.2.4 Coherent dynamics, relaxation and recombination of optical excitations 229
5.5.2.5 Dot-dot interactions, quantum dot arrays 231
5.5.3 (Cd,Hg)Te 232
5.5.4 Cd(Te,Se) and Cd(Te,S) 232
5.5.5 ZnTe 233
5.5.6 HgSe 233
5.5.7 CdSe 233
5.5.7.1 The low-density regime 236
5.5.7.1.1 Size-dependent energy states 236
5.5.7.1.2 Splitting of states 246
5.5.7.1.3 Interaction with phonons 251
5.5.7.1.4 Modification of the optical properties by external fields 257
5.5.7.1.4.1 External electric fields 257
5.5.7.1.4.2 External magnetic fields 258
5.5.7.1.4.3 Hydrostatic pressure 260
5.5.7.1.5 Impurity states 260
5.5.7.2 The intermediate-density regime 260
5.5.7.2.1 Biexciton states 261
5.5.7.2.2 Nonlinear optical coefficients 261
5.5.7.2.3 Stimulated emission and optical gain 262
5.5.7.3 The high-density regime 264
5.5.7.4 Coherent dynamics, relaxation and recombination of optical excitations 264
5.5.7.4.1 Dephasing times and homogeneous linewidth 264
5.5.7.4.2 Radiative and nonradiative recombination 265
5.5.7.5 Dot-dot interactions, quantum dot arrays 271
5.5.8 Cd(Se,S) 273
5.5.8.1 The low-density regime 274
5.5.8.1.1 Size-dependent energy states 274
5.5.8.1.2 Splitting of states 274
5.5.8.1.3 Interaction with phonons 274
5.5.8.1.4 Modification of the optical properties by external fields 276
5.5.8.1.4.1 External electric fields 276
5.5.8.1.4.2 External magnetic fields 278

5.5.8.1.4.3 Hydrostatic pressure 278
5.5.8.1.5 Impurity states 278
5.5.8.2 The intermediate-density regime 278
5.5.8.2.1 Biexciton states 278
5.5.8.2.2 Nonlinear optical coefficients 279
5.5.8.2.3 Stimulated emission and optical gain 281
5.5.8.3 The high-density regime 281
5.5.8.4 Coherent dynamics, relaxation and recombination of optical excitations 282
5.5.8.4.1 Dephasing times and homogeneous linewidth 282
5.5.8.4.2 Radiative and nonradiative recombination 282
5.5.8.5 Dot-dot interactions, quantum dot arrays 283
5.5.9 (Cd,Mn)Se 283
5.5.10 (Cd,Zn)Se 283
5.5.11 ZnSe 284
5.5.11.1 The low-density regime 284
5.5.11.1.1 Size-dependent energy states 284
5.5.11.1.2 Splitting of states 286
5.5.11.1.3 Interaction with phonons 287
5.5.11.1.4 Modification of the optical properties by external fields 287
5.5.11.1.5 Impurity states 287
5.5.11.2 The intermediate-density regime 289
5.5.11.3 The high-density regime 289
5.5.11.4 Coherent dynamics, relaxation and recombination of optical excitations 289
5.5.11.5 Dot-dot interactions, quantum dot arrays 289
5.5.12 HgS 289
5.5.13 CdS 290
5.5.13.1 The low-density regime 292
5.5.13.1.1 Size-dependent energy states 292
5.5.13.1.2 Splitting of states 298
5.5.13.1.3 Interaction with phonons 300
5.5.13.1.4 Modification of the optical properties by external fields 302
5.5.13.1.4.1 External electric fields 302
5.5.13.1.4.2 External magnetic fields 303
5.5.13.1.4.3 Hydrostatic pressure 303
5.5.13.1.5 Impurity states 304
5.5.13.2 The intermediate-density regime 305
5.5.13.2.1 Biexciton states 305
5.5.13.2.2 Nonlinear-optical coefficients 305
5.5.13.2.3 Stimulated emission and optical gain 306
5.5.13.3 The high-density regime 306
5.5.13.4 Coherent dynamics, relaxation and recombination of optical excitations 306
5.5.13.4.1 Dephasing times and homogeneous linewidth 307
5.5.13.4.2 Radiative and nonradiative recombination 308
5.5.13.5 Dot-dot interactions, quantum dot arrays 309
5.5.14 (Zn,Cd)S 310
5.5.15 (Zn,Mn)S 310


5.2.2.6 
5.2.2.6.1 
5.2.2.6.2 
5.2.2.6.3 
5.2.2.6.4 
5.2.2.6.5 
5.2.2.7 
5.2.3 
5.2.3.1 
5.2.3.1.1 
5.2.3.1.2 
5.2.3.2 
5.2.3.3 
5.2.3.4 
5.2.3.5 
5.2.4 
5.2.4.1 
5.2.4.2 
5.2.4.3 
5.2.4.4 
5.2.5 
5.2.5.1 
5.2.5.1.1 
5.2.5.1.2 
5.2.5.1.3 
5.2.5.1.4 
5.2.5.2 
5.2.5.2.1 
5.2.5.2.2 
5.2.5.2.3 
5.2.5.3 
5.2.5.3.1 
5.2.5.3.2 
5.2.5.3.3 
5.2.5.4 
5.2.5.4.1 
5.2.5.4.2 
5.2.5.4.3 
5.2.5.4.4 
5.2.5.4.5 
5.2.5.5 
5.2.6 
5.2.6.1 
5.2.6.2 
5.2.6.3 
5.2.7 
5.2.10.4.3 
5.2.10.4.4 
5.2.10.5 
5.2.10.5.1 
5.2.10.5.2 
5.2.10.5.3 
5.2.10.6 
5.2.10.6.1 
5.2.10.6.2 
5.2.10.6.3 
5.2.10.6.4 
5.2.10.6.5 
5.2.10.6.6 
5.2.10.7 
5.2.11 
5.2.12 
5.2.12.1 
5.2.12.1.1 
5.2.12.1.2 
5.2.12.1.3 
5.2.12.2 
5.2.12.2.1 
5.2.12.2.2 
5.2.12.3 
5.2.12.3.1 
5.2.12.4 
5.2.12.4.1 
5.2.12.4.2 
5.2.12.4.3 
5.2.12.5 
5.2.13 
5.2.14 
5.2.14.1 
5.2.14.1.1 
5.2.14.1.2 
5.2.14.2 
5.2.14.3 
5.2.14.4 
5.2.14.5 
5.2.15 
5.2.16 
5.2.16.1 
5.2.16.1.1 
5.2.16.1.2 5.2.16.2 
5.2.16.2.1 
5.2.16.3 
5.2.16.3.1 
5.2.16.3.2 
5.2.16.4 
5.2.16.5 
5.3 
5.3.1 
5.3.1.1 
5.3.1.1.1 
5.3.1.1.2 
5.3.1.1.3 
5.3.1.2 
5.3.1.3 
5.3.1.4 
5.3.1.5 
5.3.2 
5.3.2.1 
5.3.2.1.1 
5.3.2.1.2 
5.3.2.1.3 
5.3.2.2 
5.3.2.3 
5.3.2.4 
5.3.2.5 
5.3.3 
5.3.3.1 
5.3.3.2 
5.3.3.3 
5.3.3.4 
5.3.3.5 
5.3.3.6 
5.3.4 
5.3.4.1 
5.3.4.2 
5.3.4.3 
5.3.4.4 
5.3.4.5 
5.3.5 
5.3.5.1 
5.3.5.1.1 
5.3.5.1.2 
5.3.5.1.3 
5.3.5.2 
5.5.16 
5.5.16.1 
5.5.16.1.1 
5.5.16.1.2 
5.5.16.1.3 
5.5.16.1.4 
5.5.16.1.4.1 
5.5.16.1.4.2 
5.5.16.1.4.3 
5.5.16.1.5 
5.5.16.2 
5.5.16.2.1 
5.5.16.2.2 
5.5.16.2.3 
5.5.16.3 
5.5.16.4 
5.5.16.5 
5.5.17 
5.5.18 
5.5.18.1 
5.5.18.1.1 
5.5.18.1.2 
5.5.18.1.3 
5.5.18.1.4 
5.5.18.1.4.1 
5.5.18.1.4.2 
5.5.18.1.4.3 
5.5.18.1.5 
5.5.18.2 
5.5.18.2.1 
5.5.18.2.2 
5.5.18.2.3 
5.5.18.3 
5.5.18.4 
5.5.18.4.1 
5.5.18.4.2 
5.5.18.5 
5.5.19 
5.6 
5.6.1 
5.6.2 
5.6.2.1 
5.6.2.1.1 
5.6.2.1.2 
5.6.2.1.3 
5.6.2.1.4 
ZnS
The low-density regime
Size-dependent energy states
Splitting of states
Interaction with phonons

311 
311 
311 
312 
312 
Modification of the optical properties by external fields 312

External electric fields 312

External magnetic fields 312

Hydrostatic pressure 314

Impurity states 314

The intermediate-density regime 315

Biexciton states 316

Nonlinear-optical coefficients 316

Stimulated emission and optical gain 316

The high-density regime 316

Coherent dynamics, relaxation and recombination of optical excitations 316

Dot-dot interactions, quantum dot arrays
CdO
ZnO
The low-density regime
Size-dependent energy states
Splitting of states
Interaction with phonons

317 
317 
317 
318 
318 
320 
321 


Modification of the optical properties by external fields 321

External electric fields 321

External magnetic fields 322

Hydrostatic pressure 322

Impurity states 322

The intermediate-density regime 323

Biexciton states 323

Nonlinear-optical coefficients 323

Stimulated emission and optical gain 323

The high-density regime 324

Coherent dynamics, relaxation and recombination of optical excitations 324

Dephasing times and homogeneous linewidth 324

Radiative and nonradiative recombination 324

Dot-dot interactions, quantum dot arrays 324

References for 5.5 325

II-VI Quantum dots II  Self-organized, epitaxially grown nanostructures 348

(U.
 WOGGON)HgTe 348

CdTe 348

The low-density regime 349

Excitonic states and their fine structure 349

Charged excitons 352

Interaction with phonons 353

Modification of the optical properties by external fields 353


5.6.2.2 The intermediate-density regime 355
5.6.2.2.1 Biexcitons 355
5.6.2.3 The high-density regime 355
5.6.2.4 Coherent dynamics, relaxation and recombination of optical excitations 356
5.6.3 (Cd,Mn)Te, (Cd,Mg)Te 357
5.6.4 ZnTe 359
5.6.5 HgSe 359
5.6.6 CdSe and ZnCdSe 359
5.6.6.1 The low-density regime 364
5.6.6.1.1 Excitonic states and their fine structure 364
5.6.6.1.2 Charged excitons 368
5.6.6.1.3 Interaction with phonons 369
5.6.6.1.4 Modification of the optical properties by external fields 370
5.6.6.1.4.1 External electric fields 370
5.6.6.1.4.2 External magnetic fields 371
5.6.6.2 The intermediate-density regime 374
5.6.6.2.1 Biexcitons 374
5.6.6.2.2 Stimulated emission and optical gain 375
5.6.6.3 The high-density regime 376
5.6.6.4 Coherent dynamics, relaxation and recombination of optical excitations 376
5.6.7 (Cd,Mn)Se 379
5.6.8 ZnSe 381
5.6.9 HgS 382
5.6.10 CdS 382
5.6.10.1 The low-density regime 383
5.6.10.1.1 Excitonic states and their fine structure 383
5.6.10.1.2 Charged excitons 383
5.6.10.1.3 Interaction with phonons 383
5.6.10.2 The intermediate-density regime 384
5.6.10.2.1 Biexcitons 384
5.6.10.2.2 Stimulated emission and optical gain 385
5.6.10.3 The high-density regime 385
5.6.10.4 Coherent dynamics, relaxation and recombination of optical excitations 385
5.6.11 ZnS 385
5.6.12 CdO 385
5.6.13 ZnO 386
5.6.14 References for 5.6 387

