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Annealing properties of vacancy-type defects in ion implanted GaN during ultra-high-pressure annealing studied by using a monoenergetic positron beam
Description/Abstract:
Behaviors of vacancy-type defects in ion-implanted GaN were studied by means of positron annihilation. Si or Mg ions were implanted into ...
Keyword:
gallium nitride
,
positron
, and
vacancy
Resource Type:
Article
Author:
Akira Uedono
,
Hideki Sakurai
,
Jun Uzuhashi
,
Tetsuo Narita
,
Kacper Sierakowski
,
Shoji Ishibashi
,
Shigefusa F. Chichibu
,
Michal Bockowski
,
Jun Suda
,
Tadakatsu Ohokubo
,
Nobuyuki Ikarashi
,
Kazuhiro Hono
, and
Tetsu Kachi
Journal:
Proceedings of SPIE - The International Society for Optical Engineering
Date Uploaded:
04/10/2023
Date Modified:
04/10/2023
In-situ observation of fiber-fuse ignition
Description/Abstract:
Ultrahigh-speed video recording of fiber-fuse ignition was reported for the first time. Fiber fuse was initiated in a glass ferrule in wh...
Keyword:
fiber fuse
,
laser-induced damage
, and
ultrahigh-speed videography
Resource Type:
Conference Proceeding
Author:
TODOROKI, Shin-ichi
Journal:
Proceedings of SPIE
Date Uploaded:
04/10/2019
Date Modified:
20/12/2022
Ultrahigh-speed videography of fiber fuse propagation: a tool for studying void formation
Description/Abstract:
Ultrahigh-speed videography of fiber fuse propogation through single mode silica fiber revealed that asymmetric, or tailed, optical disch...
Keyword:
fiber fuse
,
laser-induced damage
, and
ultrahigh-speed videography
Resource Type:
Conference Proceeding
Author:
TODOROKI, Shin-ichi
Journal:
Proceedings of SPIE
Date Uploaded:
04/10/2019
Date Modified:
19/12/2022
Formation of optical coupling structure between two ends of silica glass optical fibers by inserting tellurite glass melt
Description/Abstract:
Several nano liters of tellurite glass melt (xTeO2 - (100 - x)ZnO, x = 80,90,100 in mol%) were inserted and quenched between tow ends of ...
Keyword:
insertion loss
,
optical fiber
,
tellurite glass
, and
thermal expansion coefficient
Resource Type:
Conference Proceeding
Creator:
TODOROKI, Shin-ichi
Journal:
Proceedings of SPIE
Date Uploaded:
04/10/2019
Date Modified:
15/06/2020
IoT-powered remote sensing system and portable tools for real-time evaluation of strain imaging sheets affixed to old outdoor structures
Description/Abstract:
Photonic crystal-based strain visualization film is promising for detecting the age-related deterioration of large man-made structures an...
Keyword:
bring your own device
,
computer vision
,
internet of things
,
outdoor monitoring system
,
photonic crystal
,
real time image analysis
,
strain sensor
, and
structural color
Resource Type:
Conference Proceeding
Creator:
TODOROKI, Shin-ichi
Journal:
Proceedings of SPIE
Date Uploaded:
30/09/2019
Date Modified:
15/06/2020
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