|
Challenges of spatial 3D display techniques to optoelectronics
Jiang WU, Xu LIU
Front Optoelec Chin. 2009, 2 (4): 355-361.
https://doi.org/10.1007/s12200-009-0068-y
In the development of flat panel display techniques and digital image processing techniques, the data processing ability progresses so greatly, and it makes the three-dimensional display (3D display) possible. Recently, the 3D display technique develops so fast, it changes totally the traditional 3D viewing effect and makes 3D display become a possible technique in our daily life. In this paper, the different 3D techniques will be reviewed, and much more focus on the real spatial 3D display techniques, especially the challenges of the high-quality spatial 3D display to the optoelectronics will be analyzed, which will be the sources for the future ideal 3D display technique.
Figures and Tables |
References |
Related Articles |
Metrics
|
|
160-Gbit/s clock recovery using an electro-absorption modulator and 40-Gbit/s ETDM demultiplexer
Taorong GONG, Fengping YAN, Dan LU, Ming CHEN, Peng LIU, Peilin TAO, Muguang WANG, Tangjun LI, Shuisheng JIAN
Front Optoelec Chin. 2009, 2 (4): 389-392.
https://doi.org/10.1007/s12200-009-0072-2
A 10-GHz clock recovery from a 16×10-Gbit/s optical time-division-multiplexed (OTDM) data stream is experimentally demonstrated using an electro-absorption modulator and 40-Gbit/s electric time-division-multiplexed (ETDM) demultiplexer. The recovered clock signal exhibits excellent stability, with root mean square (RMS) jitter of 328 and 345 fs corresponding to back-to-back and transmission over 100 km, respectively.
Figures and Tables |
References |
Related Articles |
Metrics
|
|
A 123 W Nd:YVO4 slab laser with high beam quality output
Yang LIU, Hengli ZHANG, Ying YAN, Huaijin ZHANG, Jingliang HE, Jianguo XIN
Front Optoelec Chin. 2009, 2 (4): 407-409.
https://doi.org/10.1007/s12200-009-0031-y
The laser diode (LD) partially end-pumped slab laser with hybrid resonator is a kind of novel solid-state laser that can achieve high power with high beam quality. Using this configuration, taking Nd:YVO4 as the slab gain media, a 123 W output was obtained when the pumping power was 265 W, and the optical-to-optical efficiency and slope efficiency were 46.4% and 52.4%, respectively. The beam quality M2 factors in the unstable direction and the stable direction were 1.3 at the output power of 98 W.
Figures and Tables |
References |
Related Articles |
Metrics
|
|
Charge balance materials for homojunction and heterojunction OLED applications
Louis M. LEUNG, Yik-Chung LAW, Michael Y. WONG, Tik-Ho LEE, Kin Ming LAI, Lok-Yee TANG
Front Optoelec Chin. 2009, 2 (4): 435-441.
https://doi.org/10.1007/s12200-009-0064-2
In a homojunction device, a single organic layer assumes the multiple roles of hole, electron transportation, and emitter. Its ease in processing is highly desirable from the manufacturing point of view. In this paper, we shall describe the synthesis of a range of bipolar small molecules and conductive vinyl polymers for application in homojunction and heterojunction organic light emitting diodes (OLEDs). The bipolar materials, in general, consist of three basic building blocks: an arylamine, a 1,3,4-oxadiazole, and a polycyclic aromatic moiety. The achievement of charge balance can be validated either by direct measurement of electron/hole mobility or indirectly via optimization of device properties. A series of conductive vinyl copolymers containing hole transporting N-(4-methoxyphenyl)-N-(4-vinylphenyl) naphthalen-1-amine (4MeONPA) and electron transporting 2-phenyl-5-(4-vinylphenyl)-1,3,4-oxadiazole (OXA) at different compositions was applied for heterojunction and homojunction OLEDs. For heterojunction devices employed the copolymers as the hole transporting layer and Alq3 as the electron transporting and emitting layer, a maximum luminance and current efficiency of over 23000 cd/m2 and 4.2 cd/A (PL of Alq3), respectively, were achieved at the charge balance composition. Homojunction devices for the copolymers were demonstrated by the addition of rubrene as a dopant. The single layer devices at the optimal copolymer composition has Ca 1500 cd/m2 and 0.74 cd/A.
Figures and Tables |
References |
Related Articles |
Metrics
|
|
InGaN/GaN multi-quantum-well-based light-emitting and photodetective dual-functional devices
Cao MIAO, Hai LU, Dunjun CHEN, Rong ZHANG, Youdou ZHENG
Front Optoelec Chin. 2009, 2 (4): 442-445.
https://doi.org/10.1007/s12200-009-0059-z
In this study, we fabricated and characterized an InGaN/GaN multi-quantum-well (MQW)-based p-n junction photodetector (PD) for voltage-selective light-emitting and photo-detective applications. The photodetector exhibits a cutoff wavelength at around 460 nm which is close to its electroluminescence (EL) peak position. The rejection ratio was determined to be more than three orders of magnitude. Under zero bias, the responsivity of the device peaks at 371 nm, with a value of 0.068 A/W, corresponding to a 23% quantum efficiency. The overall responsivity gradually rises as a function of reverse bias, which is explained by the enhanced photocarrier collection efficiency.
Figures and Tables |
References |
Related Articles |
Metrics
|
|
Luminescence properties of blue and green dual wavelength InGaN/GaN multi-quantum well light-emitting diode
Feng WEN, Lirong HUANG, Liangzhu TONG, Dexiu HUANG, Deming LIU
Front Optoelec Chin. 2009, 2 (4): 446-449.
https://doi.org/10.1007/s12200-009-0070-4
Blue and green dual wavelength InGaN/GaN multi-quantum well (MQW) light-emitting diode (LED) has wide applications in full color display, monolithic white LED and solid state lighting, etc. Blue and green dual wavelength LEDs, which consist of InGaN strain-reduction layer, green InGaN/GaN MQW and blue InGaN/GaN MQW, were grown by metal-organic chemical vapor deposition (MOCVD), and the luminescence properties of dual wavelength LEDs with different well arrangements were studied by photoluminescence and electroluminescence. The experimental results indicated that well position played an important role on the luminescence evolvement from photoluminescence to electroluminescence.
Figures and Tables |
References |
Related Articles |
Metrics
|
17 articles
|