Compact high-brightness and highly manufacturable blue laser modules

2021 ◽  
Author(s):  
Valentina Serafini ◽  
Martina Riva ◽  
Giulia Pippione ◽  
Alessandro Mirigaldi ◽  
Claudio Coriasso ◽  
...  
Keyword(s):  
Blue Laser ◽  
High Brightness

scholarly journals Incoherentized High-brightness White Light Generated Using Blue Laser Diodes and Phosphors—Effect of Multiple Scattering—

2013 ◽  
Vol 37 (2_3) ◽  
pp. 95-100 ◽  
Author(s):  
Yoshihisa Ikeda ◽  
Yuji Takeda ◽  
Misaki Ueno ◽  
Yoshiaki Matsuba ◽  
Atsushi Heike ◽  
...  
Keyword(s):  
Multiple Scattering ◽  
White Light ◽  
Laser Diodes ◽  
Blue Laser ◽  
High Brightness

Suppressed speckle contrast of blue light emission out of white lamp with phosphors excited by blue laser diodes for high-brightness lighting applications

2012 ◽  
Vol 19 (6) ◽  
pp. 427-431 ◽  
Author(s):  
Junichi Kinoshita ◽  
Yoshihisa Ikeda ◽  
Yuji Takeda ◽  
Misaki Ueno ◽  
Yoji Kawasaki ◽  
...  
Keyword(s):  
Blue Light ◽  
Light Emission ◽  
Laser Diodes ◽  
Blue Laser ◽  
Blue Light Emission ◽  
High Brightness ◽  
Speckle Contrast

High brightness 100 W-50 um delivery blue laser diode module

2020 ◽  
Author(s):  
Martina Riva ◽  
Giammarco Rossi ◽  
Andrea Braglia ◽  
Guido Perrone
Keyword(s):  
Laser Diode ◽  
Blue Laser ◽  
High Brightness ◽  
Blue Laser Diode

scholarly journals Fast-Response Liquid Crystal for Spatial Light Modulator and LiDAR Applications

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 93
Author(s):  
Junyu Zou ◽  
Qian Yang ◽  
En-Lin Hsiang ◽  
Haruki Ooishi ◽  
Zhuo Yang ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Spatial Light Modulator ◽  
Fast Response ◽  
Blue Laser ◽  
Dielectric Anisotropy ◽  
Light Modulator ◽  
High Brightness ◽  
High Birefringence ◽  
Low Viscosity ◽  
Liquid Crystal On Silicon

We report a new nematic mixture for liquid-crystal-on-silicon spatial light modulator (SLM) and light detection and ranging (LiDAR) applications. The mixture exhibits a relatively high birefringence (Δn), moderate dielectric anisotropy (Δɛ), low viscosity, and reasonably good photostability. To achieve 2π phase change at 5 V, the response time (on + off) is 2.5 ms at 40 °C with λ = 633 nm, and 5.9 ms with λ = 905 nm. After exposure by a blue laser (λ = 465 nm) with a total dosage up to 20 MJ/cm2, this mixture shows no sign of photodegradation. Widespread applications of this material for high brightness SLMs, LiDAR, near-eye displays, and head-up displays are foreseeable.

High-power laser-driven phosphor-in-glass for excellently high conversion efficiency white light generation for special illumination or display backlighting

2018 ◽  
Vol 6 (30) ◽  
pp. 8212-8218 ◽  
Author(s):  
Jinbo Yu ◽  
Shuaichen Si ◽  
Yong Liu ◽  
Xuejie Zhang ◽  
Yujin Cho ◽  
...  
Keyword(s):  
High Power ◽  
Laser Diodes ◽  
Solid State Laser ◽  
Blue Laser ◽  
High Power Laser ◽  
Power Laser ◽  
High Brightness ◽  
High Conversion Efficiency ◽  
White Light Generation ◽  
Light Generation

High-power and high-brightness solid state laser lighting sources, fabricated with high-power blue laser diodes (LDs) and yellow-emitting phosphor converters, constitute a pioneering lighting technology for specialized lighting.

scholarly journals Fast-Response Liquid Crystal Phase Modulators with an Excellent Photostability

Crystals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 765 ◽  
Author(s):  
Qian Yang ◽  
Junyu Zou ◽  
Yannanqi Li ◽  
Shin-Tson Wu
Keyword(s):  
Liquid Crystal ◽  
Fast Response ◽  
Laser Wavelength ◽  
Blue Laser ◽  
Spatial Light Modulators ◽  
High Brightness ◽  
Light Modulators ◽  
Phase Modulators ◽  
Liquid Crystal On Silicon ◽  
Measured Response

We report a new mixture, which is modified from Merck TL-216, for liquid-crystal-on-silicon spatial light modulators (SLMs). To achieve 2π phase change at λ = 633 nm with 5 V operation voltage, the measured response time is about 3 ms at 50 °C. Meanwhile, our mixture exhibits no sign of photodegradation and even the total dosage has exceeded 400 MJ/cm2 at a blue laser wavelength λ = 465 nm. In comparison, E7 died at about 30 MJ/cm2. Widespread applications of this material for high brightness SLMs, near-eye displays, and head-up displays are foreseeable.

Thermally self-managing YAG:Ce–Al2O3color converters enabling high-brightness laser-driven solid state lighting in a transmissive configuration

2019 ◽  
Vol 7 (13) ◽  
pp. 3901-3908 ◽  
Author(s):  
Jinchun Wang ◽  
Xueyuan Tang ◽  
Peng Zheng ◽  
Shuxing Li ◽  
Tianliang Zhou ◽  
...  
Keyword(s):  
Solid State ◽  
White Light ◽  
Laser Excitation ◽  
Blue Laser ◽  
Solid State Lighting ◽  
Composite Ceramics ◽  
High Brightness

High-brightness laser-driven white light can be achieved by just controlling the Al2O3content and/or the thickness of YAG:Ce–Al2O3composite ceramics under blue laser excitation in a transmissive configuration.

A Thermally Robust La3 Si6 N11 :Ce-in-Glass Film for High-Brightness Blue-Laser-Driven Solid State Lighting

2018 ◽  
Vol 13 (2) ◽  
pp. 1800216 ◽  
Author(s):  
Shihai You ◽  
Shuxing Li ◽  
Peng Zheng ◽  
Tianliang Zhou ◽  
Le Wang ◽  
...  
Keyword(s):  
Solid State ◽  
Blue Laser ◽  
Solid State Lighting ◽  
Glass Film ◽  
High Brightness

A Stable Field Emission Electron Source

1977 ◽  
Vol 35 ◽  
pp. 58-59
Author(s):  
W.R. Bottoms ◽  
G.B. Haydon
Keyword(s):  
Field Emission ◽  
Signal To Noise Ratio ◽  
High Brightness ◽  
Electron Sources ◽  
Brightness Field ◽  
Current Densities ◽  
Properties Of Materials ◽  
Stable Field ◽  
Stable Current ◽  
Careful Design

There is great interest in improving the brightness of electron sources and therefore the ability of electron optical instrumentation to probe the properties of materials. Extensive work by Dr. Crew and others has provided extremely high brightness sources for certain kinds of analytical problems but which pose serious difficulties in other problems. These sources cannot survive in conventional system vacuums. If one wishes to gather information from the other signal channels activated by electron beam bombardment it is necessary to provide sufficient current to allow an acceptable signal-to-noise ratio. It is possible through careful design to provide a high brightness field emission source which has the capability of providing high currents as well as high current densities to a specimen. In this paper we describe an electrode to provide long-lived stable current in field emission sources.The source geometry was based upon the results of extensive computer modeling. The design attempted to maximize the total current available at a specimen.

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