Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Jared A. Kearns"'
Autor:
Tatsushi Hamaguchi, Tomohiro Makino, Kentaro Hayashi, Jared A. Kearns, Maho Ohara, Maiko Ito, Noriko Kobayashi, Shouetsu Nagane, Koichi Sato, Yuki Nakamura, Yukio Hoshina, Tatsurou Jyoukawa, Takumi Watanabe, Yuichiro Kikuchi, Eiji Nakayama, Rintaro Koda, Noriyuki Futagawa
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-9 (2022)
Abstract We report a self-induced spatially-coherent dot array consisting of fourteen units of vertical-cavity surface-emitting modes that exhibit spatially uniform spectra. A 47.5 µm total beam width and 0.5° narrow emission are achieved using an
Externí odkaz:
https://doaj.org/article/d2f0fac4519d46b6850a1ee76fc241a0
Autor:
Kentaro Hayashi, Tatsushi Hamaguchi, Jared A. Kearns, Noriko Kobayashi, Maho Ohara, Tomohiro Makino, Shoetsu Nagane, Koichi Sato, Yuki Nakamura, Yukio Hoshina, Tatsuro Jyoukawa, Takumi Watanabe, Yuichiro Kikuchi, Maiko Ito, Eiji Nakayama, Rintaro Koda, Noriyuki Futagawa
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 4, Pp 1-5 (2022)
We report a narrow divergence angle in a blue gallium-nitride-based visible vertical-cavity surface-emitting laser (GaN-VCSEL) with a curved mirror. This device exhibited continuous-wave operation at a wavelength of 447.9 nm. The full-width at half-m
Externí odkaz:
https://doaj.org/article/f9d4e26e19c749558c1a4b37db349fad
Autor:
Nathan C. Palmquist, Ryan Anderson, Jared A. Kearns, Joonho Back, Emily Trageser, Stephen Gee, Steven P. Denbaars, Shuji Nakamura
Publikováno v:
Photonics, Vol 10, Iss 6, p 646 (2023)
We report long-cavity (60.5 λ) GaN-based vertical-cavity surface-emitting lasers with a topside monolithic GaN concave mirror, a buried tunnel junction current aperture, and a bottomside nanoporous GaN distributed Bragg reflector. Under pulsed opera
Externí odkaz:
https://doaj.org/article/c6f17e539e6d41178bc2217321b4358d
Autor:
Nathan C. Palmquist, Jared A. Kearns, Stephen Gee, Arturo Juan, Srinivas Gandrothula, Michael Lam, Steven P. Denbaars, Shuji Nakamura
Publikováno v:
Applied Physics Express, Vol 17, Iss 1, p 016504 (2023)
We report long cavity (65 λ ) GaN-based vertical-cavity surface-emitting lasers (VCSELs) with a topside dielectric concave mirror, an ion implanted current aperture, and a bottomside nanoporous GaN distributed Bragg reflector. Under pulsed operation
Externí odkaz:
https://doaj.org/article/8aebb3799972440292862149c55446f6
Autor:
Nakamura, Nathan C. Palmquist, Ryan Anderson, Jared A. Kearns, Joonho Back, Emily Trageser, Stephen Gee, Steven P. Denbaars, Shuji
Publikováno v:
Photonics; Volume 10; Issue 6; Pages: 646
We report long-cavity (60.5 λ) GaN-based vertical-cavity surface-emitting lasers with a topside monolithic GaN concave mirror, a buried tunnel junction current aperture, and a bottomside nanoporous GaN distributed Bragg reflector. Under pulsed opera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::52460c321b6ae89e104af051ef49697f
Autor:
Tatsushi Hamaguchi, Maiko Ito, Jared A. Kearns, Tomohiro Makino, Kentaro Hayashi, Maho Ohara, Noriko Kobayashi, Tatsuro Jyokawa, Eiji Nakayama, Shouetsu Nagane, Koichi Sato, Yuki Nakamura, Yukio Hoshina, Yuichiro Kikuchi, Takumi Watanabe, Yuya Kanitani, Seiji Kasahara, Yoshihiro Kudo, Susumu Kusanagi, Rintaro Koda, Noriyuki Fuutagawa
Publikováno v:
Gallium Nitride Materials and Devices XVIII.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0157d789ef5db1857964229eba698cf2
https://doi.org/10.1117/12.2647047
https://doi.org/10.1117/12.2647047
Autor:
Nathan Palmquist, Ryan M. Anderson, Jared A. Kearns, Joonho Back, Emily S. Trageser, Stephen Gee, Stephen P. Denbaars, Shuji Nakamura
Publikováno v:
Gallium Nitride Materials and Devices XVIII.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::865ab9c9c78a353d863b918d50cc96aa
https://doi.org/10.1117/12.2659822
https://doi.org/10.1117/12.2659822
Autor:
Maiko Ito, Tatsushi Hamaguchi, Tomohiro Makino, Kentaro Hayashi, Jared A. Kearns, Maho Ohara, Noriko Kobayashi, Shoetsu Nagane, Koichi Sato, Yuki Nakamura, Yukio Hoshina, Tatsurou Jyoukawa, Takumi Watanabe, Yuichiro Kikuchi, Seiji Kasahara, Susumu Kusanagi, Yuya Kanitani, Yoshihiro Kudo, Eiji Nakayama, Rintaro Koda, Noriyuki Futagawa
Publikováno v:
Applied Physics Express. 16:012006
This study obtained highly uniform and efficient GaN-based vertical-cavity surface-emitting lasers with curved mirrors from a single wafer. The average threshold current (I th) and the optical output power (P max) of 14 chips measured up to 7.0 mA we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f9f6bf2e3f18113659047c471cc1e14
https://doi.org/10.35848/1882-0786/acace8
https://doi.org/10.35848/1882-0786/acace8
Autor:
Maiko Ito, Tatsushi Hamaguchi, Tomohiro Makino, Kentaro Hayashi, Jared A. Kearns, Maho Ohara, Noriko Kobayashi, Shoetsu Nagane, Koichi Sato, Yuki Nakamura, Yukio Hoshina, Tatsurou Jyoukawa, Takumi Watanabe, Yuichiro Kikuchi, Seiji Kasahara, Susumu Kusanagi, Yuya Kanitani, Eiji Nakayama, Rintaro Koda, Noriyuki Futagawa
Publikováno v:
Proceedings of the International Display Workshops. :742
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8602a4d04ee0f429f6492cb0c83f50d3
https://doi.org/10.36463/idw.2022.0742
https://doi.org/10.36463/idw.2022.0742
Autor:
Jared A. Kearns, Tatsushi Hamaguchi, Kentaro Hayashi, Maho Ohara, Tomohiro Makino, Maiko Ito, Noriko Kobayashi, Tatsurou Jyoukawa, Eiji Nakayama, Shoetsu Nagane, Koichi Sato, Yuki Nakamura, Yukio Hoshina, Rintaro Koda, Noriyuki Futagawa
Publikováno v:
Applied Physics Express. 15:072009
A single cavity filtering mirror with a highly varying reflectivity spectrum was used to demonstrate a single longitudinal mode operation for a VCSEL with a ∼25 μm cavity length. The 443.5 nm lasing peak had an SMSR of 42 dB at 9 mA, 70 kA cm−2.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbba4e50e414a82bd50e4dfb97cb4981
https://doi.org/10.35848/1882-0786/ac7697
https://doi.org/10.35848/1882-0786/ac7697