Emission pattern control and polarized light emission through patterned graded-refractive-index coatings on GaInN light-emitting diodes

Polarized light emission from GaInN light-emitting diodes embedded with subwavelength aluminum wire-grid polarizers

subwavelength aluminum wire-grid polarizers Ming Ma, David S. Meyaard, Qifeng Shan, Jaehee Cho, E. Fred Schubert, Gi Bum Kim, Min-Ho Kim, and Cheolsoo Sone Future Chips Constellation, Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, USA Future Chips Constellation, Department of Electrical, Computer, and Systems Engineering, Rensselaer Poly...

Light-Extraction Enhancement of GaInN Light-Emitting Diodes by Graded-Refractive-Index Indium Tin Oxide Anti-Reflection Contact

In photonics and optics, the refractive index of a material, first introduced by Isaac Newton as the optical density, is the most fundamental material constant. Since the refractive index determines refraction and reflection occurring at the boundary between two media, it is a critical parameter for the design of optical components, such as distributed Bragg reflectors (DBRs), omnidirectional r...

Polarized Light-Emission from Photonic Organic Light-Emitting Devices

Organic light-emitting diodes with a spacer enhanced exciplex emission

Emission characteristics of photonic crystal light-emitting diodes.

Experimentally measured optical properties of photonic crystal LEDs are reported here. Photonic crystal and photonic quasi-crystal structures were fabricated on GaN epilayer LED wafer material using both direct-write electron beam lithography and nanoimprint lithography. Some of these structures were processed to make finished LEDs. Both electroluminescence and photoluminescence measurements we...