Dr. Long Cheng Profile

Dr. Long Cheng

Engineer at hQphotonics Inc

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Author

Publications (5)

Proceedings Article | 5 March 2021 Presentation

The effect of differential absorption saturation on laser cooling in YLF:Yb

Long Cheng, Laura Andre, Gabriela Almeida, Luis H. Andrade, Sandro Lima, Junior Silva, Tomaz Catunda, Stephen Rand

Proceedings Volume 11702, 1170207 (2021) https://doi.org/10.1117/12.2577336

KEYWORDS: Absorption, Ytterbium, Ions, Thermometry, Temperature metrology, Spectroscopy, Luminescence, Light emitting diodes, Crystals

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Proceedings Article | 4 March 2019 Presentation

3D thermal transport analysis and experiments on a self-cooled tungstate laser (Conference Presentation)

Long Cheng, Laura Andre, Stephen Rand

Proceedings Volume 10936, 109360R (2019) https://doi.org/10.1117/12.2507900

KEYWORDS: Crystals, 3D modeling, Glasses, Thermal modeling, Thermal effects, Statistical modeling, Laser development, Statistical analysis, Laser crystals, Black bodies

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Proceedings Article | 1 March 2019 Paper

Prospects for rapid laser cooling on ED-allowed transitions

Alexander Salkeld, Laura Andre, Long Cheng, Stephen Rand

Proceedings Volume 10936, 109360V (2019) https://doi.org/10.1117/12.2508691

KEYWORDS: Absorption, Luminescence, Ytterbium, Solid state lasers, Quantum efficiency, External quantum efficiency, Titanium, Cerium

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Proceedings Article | 1 March 2019 Presentation + Paper

Laser cooling under ambient conditions in Yb3+:KYW

Laura Andre, Long Cheng, Alexander Salkeld, Luis H. Andrade, Sandro Lima, Junior Silva, Stephen Rand

Proceedings Volume 10936, 109360E (2019) https://doi.org/10.1117/12.2507325

KEYWORDS: Crystals, Absorption, Temperature metrology, Glasses, Cameras, Luminescence, Ytterbium, Ions, Calibration, Laser crystals

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Proceedings Article | 20 February 2018 Presentation + Paper

Growth of rare-earth doped single crystal yttrium aluminum garnet fibers

Subhabrata Bera, Craig Nie, James Harrington, Long Cheng, Stephen Rand, Yuan Li, Eric Johnson

Proceedings Volume 10511, 105111P (2018) https://doi.org/10.1117/12.2292275

KEYWORDS: Optical fibers, YAG lasers, Laser crystals, Holmium, Sol-gels, Fiber lasers, High power lasers, Neodymium

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