Michael John Bergmann

Archive Network Publication Hotspot Collaboration

Network

Latest external collaboration on country level. Dive into details by clicking on the dots.

Explore More

Hotspot

Dive into the research topics where Michael John Bergmann is active.

Explore More

Publication

Featured researches published by Michael John Bergmann.

device research conference | 2004

Materials and device developments for ultraviolet LEDs and laser diodes

Michael John Bergmann; T. Kuhr; K. Haberem; Christopher P. Hussell; Amber Christine Abare; Dave Emerson

AlGaInN-based ultraviolet (UV) light emitters have recently become the focus of intense research since semiconductor UV optical sources offer the potential of low cost, small size, low power, and high reliability. In this paper, we summarize critical elements for optimizing LED and LD performance in the sub-390 nm range. Lifetime results on both LEDs and LDs are discussed along with issues concerning further increasing the lifetime of these short wavelength devices, increasing their efficiency, and pushing emission wavelength even shorter.

Archive | 2007

Wafer level phosphor coating method and devices fabricated utilizing method

Ashay Chitnis; James Ibbetson; Bernd Keller; David Todd Emerson; John Adam Edmond; Michael John Bergmann; Jasper Cabalu; Jeffrey C. Britt; Arpan Chakraborty; Eric Tarsa; James Seruto; Yankun Fu

Archive | 2002

Group III nitride based light emitting diode structures with a quantum well and superlattice, group III nitride based quantum well structures and group III nitride based superlattice structures

David Todd Emerson; James Ibbetson; Michael John Bergmann; Kathleen Marie Doverspike; Michael J. O'Loughlin; Howard Dean Nordby; Amber Christine Abare

Archive | 2003