Edge-Emitting Lead Salt Mid-Infrared Laser Structure on BaF2 (110) Substrate

• Published in: Journal of electronic materials 2009-09, Vol.38 (9), p.1952-1955
• Main Authors: Li, D., Mukherjee, S., Ma, J., Bi, G., Ray, D., Zhao, F., Elizondo, S.L., Yu, G., Shi, Z.
• Format: Article
• Language: English
• Subjects: Characterization and Evaluation of Materials; Chemistry and Materials Science; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Cross-disciplinary physics: materials science; rheology; Electronics and Microelectronics; Exact sciences and technology; Instrumentation; Materials Science; Methods of deposition of films and coatings; film growth and epitaxy; Molecular, atomic, ion, and chemical beam epitaxy; Optical and Electronic Materials; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Photoluminescence; Physics; Solid State Physics
• ISSN: 0361-5235; 1543-186X
• DOI: 10.1007/s11664-009-0796-1

A lead salt mid-infrared laser sample grown by molecular-beam epitaxy (MBE) on a polished BaF 2 (110) substrate is studied. For improving the laser performance at higher operating temperature, a method of substrate transfer from a BaF 2 substrate to a copper heat sink is developed. The cleaved facet along the {100} plane, which is helpful for the formation of a Fabry-Pérot resonant cavity on the laser sample, is observed. Pulsed photoluminescence measurements are conducted on the laser sample step by step during processing in order to trace the effect of each process step.