Rare earths as a probe of environment and electron-phonon interaction in optical materials / Rosanna Capelleti ... [et al.].

Format:

Book

Contributor:

Capelleti, Rosanna.

Language:

English

Subjects (All):

Rare earths--Optical properties.

Rare earths.

Physical Description:

1 online resource (89 p.)

Edition:

1st ed.

Place of Publication:

New York : Nova Science Publishers, c2009.

Language Note:

English

Summary:

The rare earth electronic transitions, widely exploited for optical applications, occur within the shielded 4f shell and originate very sharp absorption (or emission) lines in spectra of crystals measured at low temperatures. This work covers a spectral region as wide as 75-25000 cm-1 at a resolution as fine as 0.01 cm-1.

Contents:

Intro

RARE EARTHS AS A PROBE OF ENVIRONMENT AND ELECTRON-PHONON INTERACTION IN OPTICAL MATERIALS

CONTENTS

PREFACE

Chapter I INTRODUCTION

Chapter II ELECTRONIC ENERGY LEVEL SCHEME OF RARE EARTHS

A. DETAILS ON THE SAMPLES, SAMPLE PREPARATION, AND FT MEASUREMENTS

B. ABSORPTION SPECTRA ANALYSIS, LINE ATTRIBUTION ON THE BASIS OF THE EXPERIMENTAL DATA

1. An Example of Line Attribution: Er3+ in Crystalline Environments

2. Line Attribution for More Complex Spectra (Dy3+, Ho3+, and Tm3+)

3. Line Attribution for End Members of the RE Series: The Example of Ce3+

4. Sublevel Separation within the Ground Manifold

5. Linear Dichroism Measurements and Wavefunction Symmetry

C. CRYSTAL FIELD ANALYSIS, ENERGY LEVEL SCHEME, AND SUPERPOSITION MODEL

Chapter III RE3+ AS A PROBE OF THE ENVIRONMENT

A. LINE WIDTH AS A PROBE OF THE RE3+ ENVIRONMENT

1. Long Range Order Perturbed by Increasing RE3+ Concentration

2. Short Range Order Induced by Fluorine in Er3+ Doped Silica Glasses

3. Local Order Monitored by Er3+ in Nanostructured SiO2/SnO2 Glassceramics

B. RE3+ CLUSTERS

C. ER-O INTERACTION

D. HYPERFINE STRUCTURE OF HO3+ LINES

Chapter IV ELECTRON-PHONON (E-P) INTERACTION

A. LINE POSITION AND WIDTH AS A FUNCTION OF THE TEMPERATURE

B. MODELS, FITTING, AND ELECTRON-PHONON INTERACTION

C. VIBRONIC TRANSITIONS

D. VIBRONIC SPECTRA ANALYSIS

Chapter V CONCLUSION

ACKNOWLEDGMENTS

REFERENCES

INDEX

Blank Page.

Notes:

Description based upon print version of record.

Includes bibliographical references (p. [69]-73) and index.

Description based on print version record.

ISBN:

1-61470-728-6

OCLC:

756786429