Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Kazufumi Tanaka"'
Autor:
Ryuya Hashimoto, Kenichiro Aso, Keisuke Yata, Kazufumi Tanaka, Naoki Fujioka, Ryo Yamazaki, Serika Moriyama, Juri Kawamura, Asato Hirota, Takatoshi Maeno
Publikováno v:
Diagnostics, Vol 14, Iss 22, p 2484 (2024)
Background/Objectives: We intended to investigate choroidal blood flow (CBF) and choroidal thickness (CT) alternations in treatment-naive eyes with non-ischemic branch retinal vein occlusion (BRVO) following intravitreal aflibercept injection (IVA).
Externí odkaz:
https://doaj.org/article/4410ca3cc304466c8b343cc316744aa4
Autor:
Ryuya Hashimoto, Kenichiro Aso, Keisuke Yata, Naoki Fujioka, Kazufumi Tanaka, Serika Moriyama, Asato Hirota, Juri Kawamura, Takatoshi Maeno
Publikováno v:
Diagnostics, Vol 14, Iss 20, p 2328 (2024)
Background/Objectives: To evaluate the roles of choroidal blood flow (CBF) and choroidal thickness (CT) as predictors of macular edema recurrence in patients with treatment-naive non-ischemic branch retinal vein occlusion (BRVO) after intravitreal ra
Externí odkaz:
https://doaj.org/article/a98222e46004475a9b866010cf9479ad
Autor:
Masaru Kuramoto, Seiichiro Kobayashi, Takanobu Akagi, Komei Tazawa, Kazufumi Tanaka, Tatsuma Saito, Tetsuya Takeuchi
Publikováno v:
Applied Sciences, Vol 9, Iss 3, p 416 (2019)
High-efficiency and high-power operation have been demonstrated for blue GaN-based vertical-cavity surface-emitting lasers (VCSELs) with AlInN/GaN distributed Bragg reflectors. The high-efficiency performance was achieved by introducing a novel SiO2-
Externí odkaz:
https://doaj.org/article/af260a32973448e1ab99c7b72c21343d
Autor:
Tetsuya Takeuchi, Takanobu Akagi, Seiichiro Kobayashi, Kazufumi Tanaka, Masaru Kuramoto, Komei Tazawa, Tatsuma Saito
Publikováno v:
Applied Sciences
Volume 9
Issue 3
Applied Sciences, Vol 9, Iss 3, p 416 (2019)
Volume 9
Issue 3
Applied Sciences, Vol 9, Iss 3, p 416 (2019)
High-efficiency and high-power operation have been demonstrated for blue GaN-based vertical-cavity surface-emitting lasers (VCSELs) with AlInN/GaN distributed Bragg reflectors. The high-efficiency performance was achieved by introducing a novel SiO2-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::908191520f5b37c1d5cf512d203294b9
Autor:
Takanobu Akagi, Masaru Kuramoto, Tetsuya Takeuchi, Tatsuma Saito, Kazufumi Tanaka, Komei Tazawa, Seiichiro Kobayashi
Publikováno v:
2018 IEEE International Semiconductor Laser Conference (ISLC).
High output power of 7.6 mW from a blue GaN-based VCSEL was successfully demonstrated under CW operation by reducing both the internal loss and the reflectivity of the front cavity mirror. The internal loss was significantly reduced by introducing th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::092e0b39c47527740105b903a47f0c18
https://doi.org/10.1109/islc.2018.8516155
https://doi.org/10.1109/islc.2018.8516155
Autor:
Takanobu Akagi, Masaru Kuramoto, Keisuke Nakata, Tatsuma Saito, Seiichiro Kobayashi, Kazufumi Tanaka, Komei Tazawa
Publikováno v:
Applied Physics Express. 12:091004
We have successfully demonstrated a high output power of 1.19 W from a two-dimensional 16 × 16 blue GaN-based vertical-cavity surface-emitting laser (VCSEL) array under continuous wave operation at a lasing wavelength of 447 nm. A 256-element VCSEL
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f30933ff9d6e0afcbf908dafbe0311b2
https://doi.org/10.7567/1882-0786/ab3aa6
https://doi.org/10.7567/1882-0786/ab3aa6
Autor:
Takanobu Akagi, Komei Tazawa, Kazufumi Tanaka, Seiichiro Kobayashi, Tatsuma Saito, Masaru Kuramoto
Publikováno v:
Applied Physics Letters. 115:041101
A phase-locked ring-array GaN-based vertical-cavity surface-emitting laser (VCSEL) was demonstrated using a floral-patterned structure, based on a buried-SiO2 lateral optical confinement technique. This structure enabled the realization of evanescent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::031fd5d1d19f5651658fe467b9823939
https://doi.org/10.1063/1.5104289
https://doi.org/10.1063/1.5104289
Autor:
Takanobu Akagi, Masaru Kuramoto, Kazufumi Tanaka, Komei Tazawa, Tatsuma Saito, Seiichiro Kobayashi, Tetsuya Takeuchi
Publikováno v:
Applied Physics Express. 11:112101
High output power values of 15.7 mW at 20 °C and 2.7 mW at 110 °C were obtained from a blue GaN-based vertical-cavity surface-emitting laser (VCSEL) under continuous-wave operation as a result of introducing a long-cavity (10λ) structure. The thre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfe93f2df737c8de537299d88d288565
https://doi.org/10.7567/apex.11.112101
https://doi.org/10.7567/apex.11.112101
Autor:
Tetsuya Takeuchi, Takanobu Akagi, Masaru Kuramoto, Komei Tazawa, Tatsuma Saito, Kazufumi Tanaka, Seiichiro Kobayashi
Publikováno v:
Applied Physics Letters. 112:111104
We have achieved a high output power of 6 mW from a 441 nm GaN-based vertical-cavity surface-emitting laser (VCSEL) under continuous wave (CW) operation, by reducing both the internal loss and the reflectivity of the front cavity mirror. A preliminar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4da3420aec933b3eaf21f321140d1fc0
https://doi.org/10.1063/1.5020229
https://doi.org/10.1063/1.5020229
Publikováno v:
IEEJ Transactions on Industry Applications. 130:590-598
In recent years, induction-heating (IH) cookers that can be used to heat nonmagnetic metals such as aluminum have been produced. Occasionally, a light pan moves on a glass plate due to buoyancy when heated by an IH cooker. In some IH cookers, an alum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0995ba08017a2a6c441de29deeb33601
https://doi.org/10.1541/ieejias.130.590
https://doi.org/10.1541/ieejias.130.590