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The University of Northern Iowa physics department hosts colloquium, Wednesday, Sept. 24

September 16, 2003
Contact: 

Paul Shand, associate professor, physics, (319) 273-2930
David Berman, associate professor, physics, (319) 273-2290
Vicki Grimes, University Marketing & Public Relations, (319) 273-2761

CEDAR FALLS, Iowa -- The University of Northern Iowa physics department will host the year's first physics colloquium, at 4 p.m. Wednesday, Sept. 24, in the Physics building, room 201. The event will feature David Berman, UNI associate professor of physics, speaking on 'Optimizing the Operation of Diode Lasers.' Berman is a theoretical physicist who has studied underwater acoustics and now is investigating semiconductor structures.

According to Paul Shand, associate professor of physics and chair of the colloquium series, the presentation will discuss how diode lasers work and how semiconductors, which are materials that are the basis of modern electronic devices, can be designed to improve the performance of these lasers. In particular, Berman will discuss the physics of semiconductor superlattices, which are structures grown layer by layer, with the layers in some cases one atom thick. These structures may be important in future electronics applications. For additional information contact Shand, at (319) 273-2930.