scholarly journals All-Solid-State Coherent Ultraviolet Light Source

1996 ◽  
Vol 24 (Supplement) ◽  
pp. 58-61
Author(s):  
Michio Oka ◽  
Werner Wiechmann ◽  
L. Y. Liu ◽  
Naoya Eguchi ◽  
Shigeo Kubota
Keyword(s):  
Solid State ◽  
Light Source ◽  
Ultraviolet Light

scholarly journals A broadband ultraviolet light source using GaN quantum dots formed on hexagonal truncated pyramid structures

2020 ◽  
Vol 2 (4) ◽  
pp. 1449-1455
Author(s):  
Jong-Hoi Cho ◽  
Seung-Hyuk Lim ◽  
Min-Ho Jang ◽  
Chulwon Lee ◽  
Hwan-Seop Yeo ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solid State ◽  
Light Source ◽  
Ultraviolet Light ◽  
Light Emitter ◽  
Strain Inhomogeneity ◽  
Combined Structure ◽  
Pyramid Structures ◽  
Truncated Pyramid

Broadband ultraviolet solid-state light emitter has been demonstrated based on the combined structure of MOCVD grown microstructure and the MBE grown quantum dots, thanks to the strain inhomogeneity of the multi-facet semiconductor microstructure.

Visualization and Manipulation of Molecular Motion in Solid State through Photo-Induced Clusteroluminescence

2019 ◽  
Author(s):  
Haoke Zhang ◽  
Lili Du ◽  
Lin Wang ◽  
Junkai Liu ◽  
Qing Wan ◽  
...  
Keyword(s):  
Quantum Mechanics ◽  
Excited State ◽  
Solid State ◽  
Light Source ◽  
Molecular Motion ◽  
Molecular Machine ◽  
Conjugated Molecules ◽  
Time Resolved ◽  
Packing Structure ◽  
New Strategy

<p>Building molecular machine has long been a dream of scientists as it is expected to revolutionize many aspects of technology and medicine. Implementing the solid-state molecular motion is the prerequisite for a practical molecular machine. However, few works on solid-state molecular motion have been reported and it is almost impossible to “see” the motion even if it happens. Here the light-driven molecular motion in solid state is discovered in two non-conjugated molecules <i>s</i>-DPE and <i>s</i>-DPE-TM, resulting in the formation of excited-state though-space complex (ESTSC). Meanwhile, the newly formed ESTSC generates an abnormal visible emission which is termed as clusteroluminescence. Notably, the original packing structure can recover from ESTSC when the light source is removed. These processes have been confirmed by time-resolved spectroscopy and quantum mechanics calculation. This work provides a new strategy to manipulate and “see” solid-state molecular motion and gains new insights into the mechanistic picture of clusteroluminescence.<br></p>

scholarly journals 310 nm UV-LEDs attenuate imiquimod-induced psoriasis-like skin lesions in C57BL/6 mice and inhibit IL-22-induced STAT3 expression in HaCaT cells

2020 ◽  
Vol 19 (8) ◽  
pp. 1009-1021
Author(s):  
Tae-Rin Kwon ◽  
Sung-Eun Lee ◽  
Jong Hwan Kim ◽  
You Na Jang ◽  
Su-Young Kim ◽  
...  
Keyword(s):  
Light Source ◽  
Ultraviolet Light ◽  
Light Emitting Diodes ◽  
Skin Lesions ◽  
Hacat Cells ◽  
Light Emitting ◽  
Uv Leds ◽  
Ultraviolet Light Emitting Diodes

Ultraviolet light-emitting diodes (UV-LEDs) are a novel light source for phototherapy.

scholarly journals Effect of Photofunctionalization with 6 W or 85 W UVC on the Degree of Wettability of RBM Titanium in Relation to the Irradiation Time

2021 ◽  
Vol 11 (12) ◽  
pp. 5427
Author(s):  
Arturo Sanchez-Perez ◽  
Nuria Cano-Millá ◽  
María José Moya Villaescusa ◽  
José María Montoya Carralero ◽  
Carlos Navarro Cuellar
Keyword(s):  
Light Source ◽  
Ultraviolet Light ◽  
Irradiation Time ◽  
Contact Angles ◽  
The Other ◽  
Control Group ◽  
Hydrophilic Surface ◽  
Biological Ageing ◽  
Ultraviolet C ◽  
Group A

Photoactivation with ultraviolet C light can reverse the effects derived from biological ageing by restoring a hydrophilic surface. Ten titanium discs were randomly divided into three groups: a control group, a 6 W group, and an 85 W group. A drop of double-distilled, deionized, and sterile 10 µL water was applied to each of the discs. Each disc was immediately photographed in a standardized and perpendicular manner. Measurements were taken based on the irradiation time (15, 30, 60, and 120 min). UVC irradiation improved the control values in both groups. There was no difference in its effect between the 6 W group and the other groups during the first 30 min. However, after 60 min and up to 120 min, 85 W had a significantly stronger effect. The contact angles with the 85 W ultraviolet light source at 60 and 120 min were 19.43° and 31.41°, respectively, whereas the contact angles for the 6 W UVC source were 73.8° and 61.45°. Power proved to be the most important factor, and the best hydrophilicity result was obtained with a power of 85 W for 60 min at a wavelength of 254 nm.

All-solid-state light source for generation of tunable continuous-wave coherent radiation near 202 nm

1999 ◽  
Vol 16 (10) ◽  
pp. 1668 ◽  
Author(s):  
Kensuke Matsubara ◽  
Utako Tanaka ◽  
Hidetsuka Imajo ◽  
Masayoshi Watanabe ◽  
Shinji Urabe
Keyword(s):  
Solid State ◽  
Light Source ◽  
Continuous Wave ◽  
Coherent Radiation

LED-based projection light source for solid-state volumetric true-3D display

2014 ◽  
Vol 22 (5) ◽  
pp. 1113-1119
Author(s):  
冯奇斌 FENG Qi-bin ◽  
杨光磊 YANG Guanglei ◽  
井长龙 JING Changlong ◽  
吕国强 Lv Guo-qiang
Keyword(s):  
Solid State ◽  
Light Source ◽  
3D Display
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