Results 11 to 20 of about 4,205,989 (306)

Research Progress in the Preparation of Phosphor for White Light Emitting Diode [PDF]

open access: yesMATEC Web of Conferences, 2022
As a solid-state lighting source, white light emitting diode (LED) has become the most promising green lighting energy source in the 21st century with its three advantages of energy-saving, environmentalfriendly and green-oriented.
Li Xueye
doaj   +1 more source

3.5 × 3.5 μm2 GaN blue micro-light-emitting diodes with negligible sidewall surface nonradiative recombination

open access: yesNature Communications, 2023
Micro-light-emitting diode displays are generating considerable interest as a promising technology for augmented-reality glasses. However, the fabrication of highly efficient and ultra-small ( 
Xuelun Wang   +4 more
doaj   +1 more source

Operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser [PDF]

open access: yes, 2006
We report the operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser. The laser delivers 1 W at 855 nm and is pumped with a cost-effective fiber-coupled laser diode emitting at 806 nm.
Ferguson, Allister I.   +11 more
core   +3 more sources

BAlGaN light‐emitting diode emitting at 350 nm

open access: yesElectronics Letters, 2023
In this work, the authors report the first demonstration of an ultraviolet light‐emitting diode (LED) with boron‐containing quantum wells (QWs). Secondary ion mass spectrometry measurements revealed a B concentration of 1% in the first QW with an ...
Peter Milner   +6 more
doaj   +1 more source

Studies on the measurements of the electric potential distribution in organic light-emitting diodes by phase-shift electron holography [PDF]

open access: yes, 2023
岩手大学博士(理工学)原著論文 ・Direct visualization of electric potential distribution in organic light emitting diode by phase-shifting electron holography, Yusei Sasaki, Kazuo Yamamoto, Satoshi Anada, Tsukasa Hirayama, and Noriyuki Yoshimoto, Applied Physics Express,
佐々木, 祐聖, SASAKI, Yusei
core   +1 more source

Design and Development of Simple and Low-cost Light Source for Laparoscopic Surgery

open access: yesJournal of Nepal Health Research Council, 2022
Background: The existing medical light source device used in laparoscopy surgery is very costly and is not yet developed in Nepal. This study aimed to build a light source device that is cost-effective and passes all the testing parameters like Light ...
Dikshya Chhetri   +4 more
doaj   +1 more source

Intra-cavity frequency doubling of an electrically pumped edge-emitting 980 nm laser diode with PPLN [PDF]

open access: yes, 2009
The growing trend for laser-based projection displays makes intra-cavity frequency doubling (ICFD) of electrically and optically surface emitting diode lasers in the near IR region become more interesting [1-3].
Gawith, C.B.E.   +9 more
core   +2 more sources

Combinational light emitting diode-high frequency focused ultrasound treatment for HeLa cell

open access: yesComputer Assisted Surgery, 2017
Purpose: Light sources such as laser and light emitting diode or ultrasound devices have been widely used for cancer therapy and regenerative medicines, since they are more cost-effective and less harmful than radiation therapy, chemotherapy or magnetic ...
Se-Woon Choe   +4 more
doaj   +1 more source

Absorbance based light emitting diode optical sensors and sensing devices [PDF]

open access: yes, 2008
The ever increasing demand for in situ monitoring of health, environment and security has created a need for reliable, miniaturised sensing devices. To achieve this, appropriate analytical devices are required that possess operating characteristics of ...
O'Toole, Martina   +5 more
core   +2 more sources

Dendrimer light-emitting diodes [PDF]

open access: yes, 2008
The electronics industry today is one that stands as a multi-billion dollar industry that is increasingly incorporating more and more products that have ever escalating applications in our everyday life.
Stevenson, Stuart G.
core   +2 more sources

Home - About - Disclaimer - Privacy