[PDF] Top 20 Polarized light emission from photonic crystal light-emitting diodes

... Light-emitting diodes 共LEDs兲 have become ubiquitous in illumination and signal applications as their efficiency and power level ...tional light sources, further improvement in other character- ... See full document

... anisotropic light extraction in the azimuthal direction of PhC ...symmetric light ex- traction patterns with varying number of ...of light in the PhC slabs and provides information important for ... See full document

... Anisotropic light extraction of photonic crystal 共PhC兲 light-emitting diodes in the azimuthal direction has been investigated with an annular structure of triangular PhC ... See full document

... ous current of 20 mA injected into the TO mounted device at room temperature. The angular-resolved experiment setup is the same as in Ref. 9. In PhC FTLED, the far-field distribu- tion will be significantly modified by ... See full document

... Directional Light Enhancement from GaN-Based Film-Transferred Photonic Crystal Light-Emitting Diodes View the table of contents for this issue, or go to the journal ... See full document

... The light output is detected by cali- brating an integrating sphere with an Si photodiode on package de- vice, so that light emitted in all directions from the LED can be ...the light output ... See full document

... the light output radiation patterns of the compared LEDs packaged in TO cans at a driving current of 20 mA, as shown in ...broad light beam shaping effect under NHPSS and a narrower beam profile from ... See full document

... GaInN light-emitting diode (LED) can provide a polarization ratio as high as ...producing polarized light have been revealed by some publications [2], ...emitted polarized light ... See full document

... Oxide-confined photonic-crystal (PhC) light-emitting diodes (LEDs) on p-type GaAs substrate in the 830 nm range are ...a photonic-crystal structure formed within the n-type ... See full document

... GaN-based light-emitting diodes ...low light extraction ...potential light-emitting devices and promise even higher power operation due to their excellent thermal dissipation ... See full document

... the light extraction effi- ciency and the far-field patterns are ...film-transferred light- emitting diodes (FTLEDs) attached the photonic crystal (PhC) has achieved high ... See full document

... the emission peaks of their typical room-temperature EL spectra are all located at 460 nm at a driving current of 20 ...mA. From Fig. 3(b), guided light can be extracted outside LED chips by ... See full document

... liquid crystal phase and exhibited photoluminescence as well as polarized electroluminescence when incorporated into light-emitting diode ...red light at 604 nm with a turn-on voltage ... See full document

... including light emitting diodes (LED), laser diodes (LD), 1–5) display, storage, and ...cavity light-emitting diodes (RCLEDs) 6) and vertical-cavity ... See full document

... far-field emission pattern from a non-optimized cavity length of 550 nm GaN uMCLED, we used the GaN uMCLED incor- porated with a PhC lattice to enhance the ...with light collected along the ⌫X 共left兲 ... See full document

... photons from various valance band states and light ...the polarized photons in different valence bands is different, Purcell effect depends not only on the PhC structures but also on the material ... See full document

... The light outputs of our samples are detected calibrating an integrating sphere with a Si photodiode on a LED wafer device. Figure 5 shows the typical current–voltage (I–V) characteristics. The measured forward ... See full document

... far-field emission patterns of GaN photonic crystal (PhC) micro-cavity light-emitting diodes (MCLEDs) depending on varying structural ...far-field emission, and PhC hole ... See full document

... Fabricating photonic crystals (PhCs) on GaN based non-polar light emitting diodes (LEDs) is an effective way to increase light extraction and meanwhile to preserve or improve ... See full document

... starts from window regions and grows vertically as well as laterally to cover the SiO strips until obtaining planar surface over whole ...For light extraction efficiency improvement, various surface ... See full document