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Opportunity at Air Force Research Laboratory (AFRL)

Physics of Materials for Infrared Laser Sources

Location

Materials & Manufacturing, RX/Photonic Materials

RO# Location
13.25.03.B7210 Wright-Patterson AFB, OH 454337817

Advisers

Name E-mail Phone
Hopkins, Frank Kenneth frank.hopkins.2@us.af.mil 937.255.9890

Description

We are currently investigating the physics that limit the performance of various materials that in turn limit the scaling of infrared laser sources to higher power. First, nonlinear optical crystals provide an efficient means for converting the power from well-established lasers to longer wavelengths. However, various point defects in many of these crystals such as CdSiP2 are responsible for the crystals’ infrared absorption that in turn leads to thermal lensing at higher laser power. Various ongoing projects range from the analysis of the crystal defects by an assortment of experimental techniques to modeling activities. Additional interest focuses on semiconductor lasers. Projects range from developing a better understanding of the properties of tensile strained germanium for infrared photon emission to investigating thermal energy transfer through heterogeneous semiconductor interfaces that fundamentally limits power scaling.

 

References

Hopkins FK, et al: SPIE Proceedings 9616 (2015), 10.1117/12.2196772

Yang CH, et al, Physica B 427: 62-67, 2013

 

Keywords:
Infrared laser; Chalcopyrite semiconductor; Nonlinear optics;

Eligibility

Citizenship:  Open to U.S. citizens
Level:  Open to Postdoctoral and Senior applicants
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