Accumulated Photon Echoes as a Probe of Radiationless Relaxation Processes in Nd-Doped Glasses,
Abstract
Accumulated photon echoes (APE) were used to measure the dephasing rates of Nd3+ in various inorganic glasses as a function of excitation wavelength, sample temperature, and laser power. Although dephasing processes of optical transitions in solids are of considerable interest, they are poorly understood, largely due to the lack of experimental data on femtosecond and picosecond time scales. The APE technique using sub-picosecond laser sources has made it possible to measure in the time domain dephasing rates of inhomogeneously broadened transitions in amorphous systems. This technique therefore acts as a complement to dephasing experiments done in the frequency domain, such as spectral holeburning. Other researchers have used similar stimulated echo techniques to optically store binary information in solid state materials. Thus the results of this work provide information useful to the understanding of fundamental physical processes affecting the characteristics of spectral holeburning and in addition they may have direct application to optical storage techniques based on photon echoes.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 22, 1992
- Accession Number
- ADP008297
Entities
People
- Keith W. Ver Steeg
- Richard C. Powell
- Roger J. Reeves
Organizations
- Oklahoma State University–Stillwater