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Browsing by Subject "Semiconductor lasers"

Now showing items 1-7 of 7

Experimental setup for camera-based measurements of electrically and optically stimulated luminescence of silicon solar cells and wafers

Hinken, David; Schinke, Carsten; Herlufsen, Sandra; Schmidt, Arne; Bothe, Karsten; Brendel, Rolf (College Park, MD : American Institute of Physics, 2011)

We report in detail on the luminescence imaging setup developed within the last years in our laboratory. In this setup, the luminescence emission of silicon solar cells or silicon wafers is analyzed quantitatively. Charge ...
Improving weld bead homogeneity in short arc GMAW processes applying low power diode lasers

Leschke, Jan; Zokoll, Erik; Hermsdorf, Jörg; Kaierle, Stefan (Amsterdam : Elsevier B.V., 2018)

Using laser and arc power in equal parts, laser-arc hybrid welding processes are successfully adapted by the industry. This paper shows the stabilizing effects of diode lasers on short arc GMAW (gas metal arc welding) which ...
Optical coherence tomography for laser transmission joining processes in polymers and semiconductors

Meyer, Heiko; Zabic, Miroslav; Kaierle, Stefan; Ripken, Tammo (Amsterdam : Elsevier B.V., 2018)

Laser transmission welding applications become wide spread technology in joining transparent and turbid materials. The requirement of higher throughputs and lesser rejects support the need of alternative methods to commonly ...
Optical coupling of bare optoelectronic components and flexographically printed polymer waveguides in planar optronic systems

Wang, Yixiao; Wolfer, Tim; Lange, Alex; Overmeyer, Ludger (Bellingham, Wash. : SPIE, 2016)

Large scale, planar optronic systems allowing spatially distributed functionalities can be well used in diverse sensor networks, such as for monitoring the environment by measuring various physical quantities in medicine ...
Rapid prototyping of reflectors for vehicle lighting using laser activated remote phosphor

Lachmayer, Roland; Kloppenburg, Gerolf; Wolf, Alexander (Bellingham, Wash. : SPIE, 2015)

Bright white light sources are of significant importance for automotive front lighting systems. Todays upper class vehicles mainly use HID or LED as light source. As a further step in this development laser diode based ...
Temperature issues with white laser diodes, calculation and approach for new packages

Lachmayer, Roland; Kloppenburg, Gerolf; Stephan, Serge (Bellingham, Wash. : SPIE, 2015)

Bright white light sources are of significant importance for automotive front lighting systems. Today's upper class systems mainly use HID or LED light sources. As a further step laser diode based systems offer a high ...
Understanding charge transfer processes on metal oxides - A laser-flash-photolysis study

Sieland, Fabian; Schneider, Jenny; Lippmann, Thorsten; Bahnemann, Detlef W. (Bellingham, WA : S P I E - International Society for Optical Engineering, 2016)

In the focus of this study, mixtures of commercially available TiO2 powders were created and their photocatalytic activity concerning the acetaldehyde degradation in the gas phase was tested. Further, the lifetime of the ...

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Browsing by Subject "Semiconductor lasers"

Browsing by Subject "Semiconductor lasers"

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