Photoacoustic studies on <bold>n</bold>-type InP

InP-based Membrane-type Semiconductor Lasers

With an aim of ultra-low power operation, membranetype distributed-feedback (DFB) lasers consisting of wirelike active regions are realized with an InP-based high index-contrast waveguide by using benzocyclobutene (BCB) as well as direct boding on a silicon-on-insulator (SOI) substrate. Lateral current injection (LCI) type lasers on a semi-insulating (SI) InP substrate are also presented. Keywo...

Pulsed photoacoustic studies of thermoset curing reaction

A pulsed photoacoustic technique was used for generation of ultrasonic pulses along with optical detection inside a transparent polymer resin undergoing a curing reaction. The changes in acoustic parameters during the solidification process was measured and were found to agree with the accepted general model for the kinetics of the curing reaction for polyester and epoxy resins. The advantages ...

Title Thermally induced conduction type conversion in n-type InP

Investigation of the recrystallization of amorphized InP layers using photoacoustic technique

Process and Performance Improvements to Type-II GaAsSb/InP DHBTs

GaAsSb/InP type-II transistors have been fabricated with fT > 325 GHz and fMAX > 275 GHz. This work will examine the layer structure design criteria allowing the fT to improve from 244 GHz to 358 GHz and the effects this has on the corresponding fMAX. Additionally, the process improvements to control the undercut into the active region during the base contact isolation etch will be discussed. T...