caa a22 4500 477123368 CHVBK 20180405111642.0 cr unu---uuuuu 170330e19970601xx s 000 0 eng 10.1007/BF02678230 doi (NATIONALLICENCE)springer-10.1007/BF02678230 Problems of realizing a long pulse length, high duty cycle p-Ge landau level fir laser [Elektronische Daten] [P. Coleman, D. Cronin] The hot-hole p-Ge laser, which requires a large power density ( $$\overline J \bullet \overline E $$ ≅ 105 watts/cm3) for excitation, has fundamental heat dissipation and lattice temperature constraints that limit the laser pulse length and duty cycle that can be achieved. This paper presents a two-dimensional heat equation analysis of the p-Ge laser bar configuration along with consideration of constraints of resonator size, heat sink dissipation limits, and temperature cut-off limits (∼20°K). In order to realize a CW p-Ge laser, the present bar sizes (typically 3×4×50 mm), would need to be decreased by over an order of magnitude and the heat sink dissipation capability appreciably increased. The detailed graphs and equations presented provide design data for future p-Ge lasers and optimization data with respect to laser pulse length and duty cycle for existing lasers. Plenum Publishing Corporation, 1997 Coleman P. Electro-Physics Laboratory ECE Department, University of Illinois, 61801, Urbana, Illinois aut Cronin D. Electro-Physics Laboratory ECE Department, University of Illinois, 61801, Urbana, Illinois aut International Journal of Infrared and Millimeter Waves Kluwer Academic Publishers-Plenum Publishers 18/6(1997-06-01), 1241-1268 0195-9271 18:6<1241 1997 18 10762 https://doi.org/10.1007/BF02678230 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02678230 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Coleman P. Electro-Physics Laboratory ECE Department, University of Illinois, 61801, Urbana, Illinois aut NATIONALLICENCE 700 1- Cronin D. Electro-Physics Laboratory ECE Department, University of Illinois, 61801, Urbana, Illinois aut NATIONALLICENCE 773 0- International Journal of Infrared and Millimeter Waves Kluwer Academic Publishers-Plenum Publishers 18/6(1997-06-01), 1241-1268 0195-9271 18:6<1241 1997 18 10762 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer