CANCELLED! Organic Semiconductor Laser Sensors

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• Graham Turnbull, St Andrews University, UK
• Tuesday 31 May 2011, 14:30-15:30
• Kapitza Building Seminar Room, Cavendish Laboratory, Department of Physics.

If you have a question about this talk, please contact Jenny Clark.

The efficient light emission and simple processing of organic semiconductors make them attractive candidates for miniature visible lasers. In this talk I will discuss recent progress in developing very compact optically pumped lasers, notably including the use of GaN light-emitting diodes as an indirect electrical drive for organic lasers. I will also describe how organic semiconductors can function as very sensitive detectors of nitroaromatic explosives vapours using a reversible quenching of the light emission. When configured as thin-film distributed feedback lasers, the presence of explosive vapours can be used to switch operation across laser threshold, giving a rapid response to ppb concentrations of TNT -like molecules.

This talk is part of the Optoelectronics Group series.

This talk is included in these lists:

• All Cavendish Laboratory Seminars
• All Talks (aka the CURE list)
• Centre for Health Leadership and Enterprise
• Featured lists
• Kapitza Building Seminar Room, Cavendish Laboratory, Department of Physics
• ME Seminar
• Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
• Optoelectronics Group
• School of Physical Sciences
• Thin Film Magnetic Talks
• few29

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