Education Background（学歴）:
2003.4-2008.3 (Age:15-20) Depertment of Mechanical Engineering, Asahikawa National College of Technology. （旭川工業高等専門学校機械工学科【卒業研究指導教官：横井直倫】）
2008.4-2010.3 (Age:20-22) Bachelor of Eng., Applied Physics, Hokkaido University. [Photonics Laboratory] （北海道大学工学部応用理工系学科応用物理学コース【指導教官：岡和彦】）
2010.4-2012.3 (Age:22-24) Master of Eng., Applied Physics, Hokkaido University. [Photonics Laboratory] （北海道大学大学院工学院応用物理学専攻【指導教官：岡和彦】）
2012.4-2015.3 (Age:24-27) Ph. D course in Applied Physics, Hokkaido University. [Photonics Laboratory] （北海道大学大学院工学院応用物理学専攻【指導教官：岡和彦】）

Doctoral thesis（学位論文）: A study on generation of optical vortices and optical lattices by use of axially symmetric polarization elements
                                              （軸対称偏光素子を利用した光渦及び光格子の生成に関する研究）


Employment Background（職歴）:
2014.4-2015.3 (Age:26-27) Reseach fellow, Japan Society for the Promtion of Science [Hokkaido University]（日本学術振興会特別研究員DC2【北海道大学】）
2015.4-2021.9 (Age:27-34) Assistant Professor, Electrical Enginnering, Nagaoka University of Technology（長岡技術科学大学電気電子情報工学専攻　助教）
2018.9-            (Age:31-    ) 応用物理学会　若手光チャプター　幹事・メンバー
2021.10-          (Age:34-    ) Associate Professor, Electrical Enginnering, Nagaoka University of Technology（長岡技術科学大学電気電子情報工学専攻　准教授）
2021.10-          (Age:34-    ) Research member of JST-CREST project, JST（JST-CREST「革新光」・【幾何学位相回折素子による赤外・THz偏光撮像技術開発】研究参加者）
2023.4-            (Age:35-    ) 偏光計測研究会実行委員
2023.10-          (Age:37-    ) 日本液晶学会　フォトニクス・光デバイスフォーラム運営委員
2024.04-          (Age:37-    ) IDW LCT-WS委員



Selected Paper（代表的な論文：10件迄）:
[10] M. Sakamoto, S. Ohara, Y. Mitsuboshi, K. Noda, M. Suzuki, T. Sasaki, N. Kawatsuki, and H. Ono,
"Design and fabrication of a liquid crystal polarization grating for mid- and far-infrared wavelengths,"
Appl. Opt. 63, 2095-2100 (2024). [Link]

[9] M. Sakamoto, Y. Kaneko, Y. Kakedo, K. Noda, T. Sasaki, M. Tanaka, T. Sakai, Y. Hattori, N. Kawatsukim and H. Ono,
"Hybrid polarization grating for mode detection of vector beams,"
Opt. Express 29, 27071-27083 (2021). [Link]

[8] M. Sakamoto, H. T. Nhan, K. Noda, T. Sasaki, T. Kamei, T. Sakai, Y. Hattori, N. Kawatsukim and H. Ono,
"Polarized beam steering by use of multiply cascaded rotating polarization gratings,"
Appl. Opt. 60, 2062-2068 (2021).・・・Editor's Pick! [Link]

[7] M. Sakamoto, S. Kaneko, K. Noda, T. Sasaki, N. Kawatsuki and H. Ono,
"Generation of optical vortices using a uniaxially aligned azo-dye-doped liquid crystal cell and space-variant polarization projection system,"
Appl. Opt. 58, 7145-7150 (2019).・・・Editor's Pick! [Link]

[6] M. Sakamoto, Y. Kaneko, Y. Nakamoto, K. Noda, T. Sasaki, N. Kawatsuki and H. Ono,
"Mode demultiplexing of vector beams using crossed-fork-shaped polarization grating fabricated by photoalignment of photo-crosslinkable polymer liquid crystal,"
Appl. Phys. Lett. 115, 061104 (2019). [Link]

[5] M. Sakamoto, T. Hizatsuki, K. Noda, T. Sasaki, N. Kawatsuki, K. Goto, and H. Ono,
"Fabrication of fine metal structures based on laser drawing method using interference pattern from co-propagating optical vortices,"
Appl. Phys. Lett. 112, 021106 (2018). [Link]

[4] M. Sakamoto, Y. Nakamoto, K. Kawai, K. Noda, T. Sasaki, N. Kawatsuki, and H. Ono,
"Polarization grating fabricated by recording of vector hologram between two orthogonally polarized vector vortex beams,"
J. Opt. Soc. Am. B 34, 263-269 (2017). [Link]

[3] K. Yamane, M. Sakamoto, N. Murakami, R. Morita, and K. Oka,
"Picosecond rotation of a ring-shaped optical lattice by using a chirped vortex-pulse pair,"
Opt. Lett. 41, 4597-4600 (2016). [Link]

[2] M. Sakamoto, T. Sasaki, K. Noda, T. M. Tien, N. Kawatsuki, and H. Ono,
"Three-dimensional vector recording in polarization sensitive liquid crystal composites by using axisymmetrically polarized beam,"
Opt. Lett. 41, 642-645 (2016). [Link]

[1] M. Sakamoto, K. Oka, R. Morita, and N. Murakami,
"Stable and flexible ring-shaped optical lattice generation by use of axially-symmetric polarization elements,"
Opt. Lett., 38, 3661-3664 (2013). [Link]



Selected Presentation（代表的な講演）:
[7] M. Sakamoto, M. Suzuki, K. Noda, T. Sasaki, N. Kawatsuki, and H. Ono,
"Vector beam detection via a pair of two liquid crystal polarization holograms,"
PhoSM2023 Photoalignment Technology and Applications, Florida (2023.12.10-12.16).
[Oral]・・・Invited

[6] M. Sakamoto, K. Noda, M. Suzuki, T. Sasaki, R. Momosaki, Y. Tanaka, T. Sakai, Y. Hattori, N. Kawatsuki, and H. Ono,
"Development and Application of Liquid Crystal Geometric Phase Elements for Display Systems,"
International Display workshop 2023, Niigata (2023.12.6-12.8).
[Oral]・・・Invited

[5] 坂本盛嗣
"液晶光配向法を利用した偏光制御素子形成とその応用,"
第19回偏光計測研究会, 横浜 (2022.12.08).
[Oral]・・・Invited

[4] M. Sakamoto, H. T. Nhan, R. Momosaki, K. Noda, T. Sasaki, T. Kamei, T. Sakai, Y. HattoriN. Kawatsuki, and H. Ono,
"Polarized beam steering by use of multiply-cascaded rotating polarization gratings with biaxial anisotropy,"
SPIE Organic Photonics + Electronics 2021, *****-**, San Diego, California United States (2021.8).
[Oral]・・・Invited

[3] M. Sakamoto, Y. Kaneko, Y. Higa, K. Noda, T. Sasaki, M. Tanaka, N. Kawatsuki, and H. Ono,
"Vector beam demultiplexing via a crossed-fork shaped polarization grating fabricated by using photocrosslinkable liquid crystal polymer film,"
SPIE Organic Photonics + Electronics 2020, 11472-24, San Diego, California United States (2020.8).
[Oral]・・・Invited

[2] 坂本盛嗣, 中元勇貴, 金子裕亮, 野田浩平, 佐々木友之, 川月喜弘, 小野浩司
「液晶偏光回折格子を用いた光渦・ベクトルビームの生成と検出」
電子情報通信学会総合大会, C-3-13, 東京(2019.3.20).
[Oral]・・・Invited

[1] M. Sakamoto, Y. Nakamoto, T. M. Tien, K. Kawai, K. Noda, T. Sasaki, N. Kawatsuki, and H. Ono,
"Functionalized liquid crystal polymers generate optical and polarization vortex beams,"
SPIE Organic Photonics + Electronics 2017, 10120-5, San Diego, California United States (2017.8).
[Oral]・・・Invited