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High Pressure Research
An International Journal
Volume 24, 2004 - Issue 1
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Original Articles

Michel Besson's stay at Harvard

Pages 3-15 | Received 15 May 2003, Accepted 15 May 2003, Published online: 08 Jun 2010
 

Abstract

In this article, I shall recount the circumstances of Michel Besson's stay in my laboratory for one year, during which time he completed experiments on tuning the radiation from a PbSe laser diode continuously from 8 microns to 22 microns in the infrared.

The connection of this research to the program in my laboratory, especially the circumstance that his efforts were a continuation of the work that brought me to Harvard twelve years earlier, will be discussed.

The principal theme will be the role of this research in his doctoral thesis to the University of Paris, and in the genesis of the high pressure laboratory that is his legacy.

Notes

1The pressure coefficients of the energy gaps depend on the assumptions made regarding the pressure dependence of the carrier effective masses.

2See Refs. Citation[5, Citation13]. The corrections are based on the choice of injected carrier density and the change with pressure of the effective mass tensor.

Figure 2 Energy of the dominant mode of stimulated emission as a function of pressure at 77 K. Measurements on a PbSe diode at a pulsed injection current density of 4800 A/cm2 Citation[5, Citation14].

Figure 2 Energy of the dominant mode of stimulated emission as a function of pressure at 77 K. Measurements on a PbSe diode at a pulsed injection current density of 4800 A/cm2 Citation[5, Citation14].

3The situation is apparently worse in HgTe and Cd1−x Hg x Te alloys, where the Brooks–Yu theory is clearly inadequate. See Cohen and Chadi Citation[27] and also Ref. Citation[31].

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