SEDL / STP / STP759-EB / STP37035S



Interactions of Intense 2.7 μm Picosecond Laser Pulses with Germanium

Bryant, GW
Washington State University, Pullman, Washington,

Schmid, A
Washington State University, Pullman, Washington,

Braunlich, P
Washington State University, Pullman, Washington,

Kelly, P
Washington State University, Pullman, Washington,

Ritchie, D
Washington State University, Pullman, Washington,


Pages: 5    Published: Oct 1981


Download this paper for $25 PDF (120K)          View License Agreement
        Click here to download the complete source publication for $149 PDF (8.7M)


Source: STP759-EB


Abstract

Computer simulations of the generation and temporal evolution of hot plasmas in germanium during the passage of intense picosecond laser pulses have been begun. At 2.7μ two-photon absorption is the generating mechanism for carriers. Carrier heating from free-carrier absorption and energy transfer to the lattice through phonon-carrier collisions are described with an electron-hole band model similar to one previously used to describe plasma dynamics in germanium driven by one-photon absorption. Details of this model will be presented and the results available to date will be discussed.


Keywords:
IR laser damage, Photoexcited carriers, Semiconductor plasma

Paper ID: STP37035S
Committee/Subcommittee: F01.02
DOI: 10.1520/STP37035S
CrossRef ASTM International is a member of CrossRef.