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Journal Articles

Experimental study of gain characteristics in relation to quantum-well width of deep-ultraviolet laser diodes

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Ziyi Zhang, Maki Kushimoto, Akira Yoshikawa, Koji Aoto, Chiaki Sasaoka, Hiroshi Amano
Journal: Applied Physics Letters
Appl. Phys. Lett. 125, 183505 (2024)
https://doi.org/10.1063/5.0240488
Published: November 2024
View articletitled, Experimental study of gain characteristics in relation to quantum-well width of deep-ultraviolet laser diodes
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Journal Articles

Degradation mechanism during catastrophic optical damage in 385 nm GaN-based ultraviolet laser diodes

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Yujie Huang, Jing Yang, Degang Zhao, Zongshun Liu, Ping Chen, Feng Liang, Yufei Hou
Journal: Applied Physics Letters
Appl. Phys. Lett. 125, 171106 (2024)
https://doi.org/10.1063/5.0216168
Published: October 2024
View articletitled, Degradation mechanism during catastrophic optical damage in 385 nm GaN-based ultraviolet laser diodes
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Journal Articles

Optical and electrical degradation behavior of GaN-based UV-A laser diodes

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Yujie Huang, Jing Yang, Degang Zhao, Zongshun Liu, Feng Liang, Ping Chen
Journal: Applied Physics Letters
Appl. Phys. Lett. 125, 172102 (2024)
https://doi.org/10.1063/5.0228675
Published: October 2024
View articletitled, Optical and electrical degradation behavior of GaN-based UV-A laser diodes
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Journal Articles

Micro-pixelated halide perovskite photodiodes fabricated with ultraviolet laser scribing

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A. P. Morozov, P. A. Gostishchev, A. Zharkova, A. A. Vasilev, A. E. Aleksandrov, L. O. Luchnikov, A. R. Tameev, D. A. Kiselev, T. S. Ilina, A. R. Ishteev, S. I. Didenko, D. S. Saranin
Journal: Applied Physics Letters
Appl. Phys. Lett. 124, 223503 (2024)
https://doi.org/10.1063/5.0191363
Published: May 2024
View articletitled, Micro-pixelated halide perovskite photodiodes fabricated with ultraviolet laser scribing
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Journal Articles

Spatially resolved work-function manipulation of azobenzene-functionalized self-assembled monolayers by optical stimulation

Open Access
Jan Böhnke, Beatrice Andres, Larissa Boie, Angela Richter, Cornelius Gahl, Martin Weinelt, Wibke Bronsch
Journal: Applied Physics Letters
Appl. Phys. Lett. 124, 191601 (2024)
https://doi.org/10.1063/5.0204610
Published: May 2024
View articletitled, Spatially resolved work-function manipulation of azobenzene-functionalized self-assembled monolayers by optical stimulation
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Includes: Supplementary data
Journal Articles

Ultraviolet laser-driven ultra-high transverse voltage in Bi-2201 thin films

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W. P. Cheng, Y. D. He, R. H. Wei, L. Hu, W. H. Song, C. B. Cai, X. B. Zhu, Y. P. Sun
Journal: Applied Physics Letters
Appl. Phys. Lett. 124, 071105 (2024)
https://doi.org/10.1063/5.0187603
Published: February 2024
View articletitled, Ultraviolet laser-driven ultra-high transverse voltage in Bi-2201 thin films
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Journal Articles

Impact of unintentionally formed compositionally graded layer on carrier injection efficiency in AlGaN-based deep-ultraviolet laser diodes

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Ziyi Zhang, Akira Yoshikawa, Maki Kushimoto, Koji Aoto, Chiaki Sasaoka, Hiroshi Amano
Journal: Applied Physics Letters
Appl. Phys. Lett. 124, 061109 (2024)
https://doi.org/10.1063/5.0184543
Published: February 2024
View articletitled, Impact of unintentionally formed compositionally graded layer on carrier injection efficiency in AlGaN-based deep-ultraviolet laser diodes
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Journal Articles

Characterization of a LaB6 tip as a thermionically enhanced photoemitter

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Xuefei Guo, Dipanjan Chaudhuri, Nina Bielinski, Jin Chen, Soyeun Kim, Tai C. Chiang, Fahad Mahmood, Julio A. N. T. Soares, Siddharth Karkare, Peter Abbamonte
Journal: Applied Physics Letters
Appl. Phys. Lett. 124, 014103 (2024)
https://doi.org/10.1063/5.0179354
Published: January 2024
View articletitled, Characterization of a LaB6 tip as a thermionically enhanced photoemitter
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Includes: Supplementary data
Journal Articles

Tunable bandgap and Si-doping in N-polar AlGaN on C-face 4H-SiC via molecular beam epitaxy

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Shubham Mondal, Ding Wang, A F M Anhar Uddin Bhuiyan, Mingtao Hu, Maddaka Reddeppa, Ping Wang, Hongping Zhao, Zetian Mi
Journal: Applied Physics Letters
Appl. Phys. Lett. 123, 182106 (2023)
https://doi.org/10.1063/5.0173637
Published: November 2023
View articletitled, Tunable bandgap and Si-doping in N-polar AlGaN on C-face 4H-SiC via molecular beam epitaxy
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Journal Articles

Non-planar growth of high Al-mole-fraction AlGaN heterostructures on patterned GaN substrates for ultraviolet laser diodes

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Yuto Ando, Zhiyu Xu, Theeradetch Detchprohm, Preston Young, Russell D. Dupuis
Journal: Applied Physics Letters
Appl. Phys. Lett. 123, 132103 (2023)
https://doi.org/10.1063/5.0159684
Published: September 2023
View articletitled, Non-planar growth of high Al-mole-fraction AlGaN heterostructures on patterned GaN substrates for ultraviolet laser diodes
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Journal Articles

SWIR anti-reflective nanostructures on nonlinear crystals by direct UV femtosecond laser printing

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Sergey Syubaev, Evgeny Modin, Stanislav Gurbatov, Artem Cherepakhin, Alexandr Dostovalov, Aleksandra Tarasova, Pavel Krinitsin, Alexander Yelisseyev, Ludmila Isaenko, Aleksandr Kuchmizhak
Journal: Applied Physics Letters
Appl. Phys. Lett. 123, 061108 (2023)
https://doi.org/10.1063/5.0159719
Published: August 2023
View articletitled, SWIR anti-reflective nanostructures on nonlinear crystals by direct UV femtosecond laser printing
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Journal Articles

Velocity-selected spatial map ion imaging spectrometer for direct imaging of near-surface catalytic activity

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David W. Chandler, Martin Fournier, Eric J. Smoll, Jr., Christopher J. Kliewer
Journal: Applied Physics Letters
Appl. Phys. Lett. 122, 251603 (2023)
https://doi.org/10.1063/5.0152985
Published: June 2023
View articletitled, Velocity-selected spatial map ion imaging spectrometer for direct imaging of near-surface catalytic activity
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Journal Articles

High p-conductivity in AlGaN enabled by polarization field engineering

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Shashwat Rathkanthiwar, Pramod Reddy, Baxter Moody, Cristyan Quiñones-García, Pegah Bagheri, Dolar Khachariya, Rafael Dalmau, Seiji Mita, Ronny Kirste, Ramón Collazo, Zlatko Sitar
Journal: Applied Physics Letters
Appl. Phys. Lett. 122, 152105 (2023)
https://doi.org/10.1063/5.0143427
Published: April 2023
View articletitled, High p-conductivity in AlGaN enabled by polarization field engineering
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Journal Articles

High-performance broadband graphene/silicon/graphene photodetectors: From x-ray to near-infrared

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Xinyu Liu, Hao Ning, Jianhang Lv, Lixiang Liu, Li Peng, Feng Tian, Srikrishna Chanakya Bodepudi, Xiaochen Wang, Xiaoxue Cao, Yunfan Dong, Wenzhang Fang, Shaoxiong Wu, Huan Hu, Bin Yu, Yang Xu
Journal: Applied Physics Letters
Appl. Phys. Lett. 122, 071105 (2023)
https://doi.org/10.1063/5.0132028
Published: February 2023
View articletitled, High-performance broadband graphene/silicon/graphene photodetectors: From x-ray to near-infrared
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Journal Articles

Demonstration of ultraviolet-B AlGaN-based laser diode operation with a peak light output power of 150 mW by improving injection efficiency through polarization charge modulation

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Ryosuke Kondo, Ayumu Yabutani, Tomoya Omori, Kazuki Yamada, Eri Matsubara, Ryota Hasegawa, Toma Nishibayashi, Sho Iwayama, Tetsuya Takeuchi, Satoshi Kamiyama, Hideto Miyake, Motoaki Iwaya
Journal: Applied Physics Letters
Appl. Phys. Lett. 121, 253501 (2022)
https://doi.org/10.1063/5.0135033
Published: December 2022
View articletitled, Demonstration of ultraviolet-B AlGaN-based laser diode operation with a peak light output power of 150 mW by improving injection efficiency through polarization charge modulation
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Journal Articles

Key temperature-dependent characteristics of AlGaN-based UV-C laser diode and demonstration of room-temperature continuous-wave lasing

Open Access
Ziyi Zhang, Maki Kushimoto, Akira Yoshikawa, Koji Aoto, Chiaki Sasaoka, Leo J. Schowalter, Hiroshi Amano
Journal: Applied Physics Letters
Appl. Phys. Lett. 121, 222103 (2022)
https://doi.org/10.1063/5.0124480
Published: November 2022
View articletitled, Key temperature-dependent characteristics of AlGaN-based UV-C laser diode and demonstration of room-temperature continuous-wave lasing
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Journal Articles

Femtosecond ultraviolet laser absorption spectroscopy for simultaneous measurements of temperature and OH concentration

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Ning Liu, Timothy Y. Chen, Hongtao Zhong, Ying Lin, Ziyu Wang, Yiguang Ju
Journal: Applied Physics Letters
Appl. Phys. Lett. 120, 201103 (2022)
https://doi.org/10.1063/5.0091572
Published: May 2022
View articletitled, Femtosecond ultraviolet laser absorption spectroscopy for simultaneous measurements of temperature and OH concentration
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Includes: Supplementary data
Journal Articles

Accurate time zero determination in an ultrafast transmission electron microscope without energy filter

Open Access
Pavel K. Olshin, Jonathan M. Voss, Marcel Drabbels, Ulrich J. Lorenz
Journal: Applied Physics Letters
Appl. Phys. Lett. 120, 104103 (2022)
https://doi.org/10.1063/5.0087850
Published: March 2022
View articletitled, Accurate time zero determination in an ultrafast transmission electron microscope without energy filter
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Journal Articles

Direct measurement of photocathode time response in a high-brightness photoinjector

Open Access
Gregor Loisch, Ye Chen, Christian Koschitzki, Houjun Qian, Matthias Gross, Adrian Hannah, Andreas Hoffmann, Davit Kalantaryan, Mikhail Krasilnikov, Sven Lederer, Xiangkun Li, Osip Lishilin, David Melkumyan, Laura Monaco, Raffael Niemczyk, Anne Oppelt, Daniele Sertore, Frank Stephan, Reza Valizadeh, Grygorii Vashchenko, Tobias Weilbach
Journal: Applied Physics Letters
Appl. Phys. Lett. 120, 104102 (2022)
https://doi.org/10.1063/5.0078927
Published: March 2022
View articletitled, Direct measurement of photocathode time response in a high-brightness photoinjector
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Journal Articles

Enhanced etch rate of deep-UV laser induced etching of diamond in low pressure conditions

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C. G. Baldwin, J. E. Downes, R. P. Mildren
Journal: Applied Physics Letters
Appl. Phys. Lett. 117, 111601 (2020)
https://doi.org/10.1063/5.0020405
Published: September 2020
View articletitled, Enhanced etch rate of deep-UV laser induced etching of diamond in low pressure conditions
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