Daiki OKAZAKI

Ko Arai, Daiki Okazaki, Ikki Morichika, and Satoshi Ashihara,
“All-Solid-State Optical-Field-Sensitive Detector for Sub-Nanojoule Pulses using Metal-Insulator Hybrid Nanostructure”,
ACS Photonics, Vol.10, No.6, pp.1702-1707 (2023).

Daiki Okazaki, Wenqing Song, Ikki Morichika, and Satoshi Ashihara,
“Mode-locked laser oscillation with spectral peaks at molecular rovibrational transition lines”,
Optics Letters, Vol.47, No.23, pp.6077-6080 (2022).

Wenqing Song, Daiki Okazaki, Ikki Morichika, and Satoshi Ashihara,
“Broadband background-free vibrational spectroscopy using a mode-locked Cr:ZnS laser”,
Optics Express, Vol.30, No.21, pp.38674-38683 (2022).

Xiangbao Bu, Daiki Okazaki, and Satoshi Ashihara,
“Inherent intensity noise suppression in a mode-locked polycrystalline Cr:ZnS oscillator”,
Optics Express, Vol. 30, No.6, pp. 8517-8525 (2022).

Tobias Kugel, Daiki Okazaki, Ko Arai, and Satoshi Ashihara,
“Direct electric-field reconstruction of few-cycle mid-infrared pulses in the nanojoule energy range”,
Applied Optics, Vol. 61, No.4, pp. 1076-1081 (2022). * Highlighted as an Editor's Pick

Daiki Okazaki, Ikki Morichika, Hayato Arai, Esko I. Kauppinen, Qiang Zhang, Anton Anisimov, Illka Varjos, Shohei Chiashi, Shigeo Maruyama, and Satoshi Ashihara,
“Ultrafast saturable absorption of large-diameter single-walled carbon nanotubes for passive mode-locking in the mid-infrared”,
Optics Express, Vol.28, No.14, pp.19997-20006 (2020).

Daiki Okazaki, Hayato Arai, Anton Anisimov, Esko I. Kauppinen, Shohei Chiashi, Shigeo Maruyama, Norihito Saito, and Satoshi Ashihara,
“Self-starting mode-locked Cr:ZnS laser using single-walled carbon nanotubes with resonant absorption at 2.4 um”,
Optics Letters, Vol.44, No.7, pp.1750-1753 (2019).

Review

Daiki Okazaki and Satoshi Ashihara，
“Development of Mode-Locked Cr:ZnS Mid-Infrared Lasers”,
The Review of Laser Engineering, vol. 49, No.7, pp.390-395 (2021).

Invited

Daiki Okazaki, Satoshi Ashihara,
"Cr:ZnS mid-infrared mode-locked laser with carbon nanotube films",
2nd International Congress and Expo on Optics, Photonics and Lasers, Nice, France, 14th June 2024

Oral

Daiki Okazaki, Daiki Okazaki, Tsuneto Kanai, Linpeng Yu, Yuri Kirita, Ryo Yasuhara, Shigeki Tokita,
"Sub-millijoule-level Fe:ZnSe chirped pulse amplifier seeded by KTA-based OPA system",
11th EPS-QEOD Europhoton Conference, FR-2.1, Vilnius, Lithuania, 30th August 2024.

Daiki Okazaki, Wenqing Song, Ikki Morichika, and Satoshi Ashihara,
"Mode-locked Pulses with Narrowband Comb-like Peaks Formed by Intracavity Amplitude Modulation from Gaseous Molecules",
CLEO®/Europe-EQEC 2023, CF-7.5, Munich, Germany, 28th June 2023.

Daiki Okazaki, Wenqing Song, Ikki Morichika, and Satoshi Ashihara,
“Mode-locked Cr:ZnS laser with multiple spectral peaks at molecular vibrational resonances”,
CLEO PacificRim 2022, CTuA1A-04, Sapporo, Japan, 2nd August 2022.

Daiki Okazaki, Wenqing Song, Ikki Morichika, and Satoshi Ashihara,
“Mode-locked Cr:ZnS laser with positive peak structure of gaseous molecules”,
The 11th Advanced Lasers and Photon Sources (ALPS 2022), ALPS-2-02, Yokohama, Japan, 18th April 2022.

Daiki Okazaki, Ikki Morichika, Esko Kauppinen, Zhang Qiang, Anton Anisimov, Varjos Ilkka, Shohei Chiashi, Shigeo Maruyama, and Satoshi Ashihara,
“Sub 5-cycle pulse generation from mode-locked Cr:ZnS laser using mid-IR resonant SWCNTs",
The 22nd International Conference on Ultrafast Phenomena, W3A.7 Online Shanghai, 18th November 2020.

Daiki Okazaki, Hayato Arai, Esko I. Kauppinen, Shohei Chiashi, Shigeo Maruyama, and Satoshi Ashihara,
"Mode-locked Oscillation of Cr:ZnS Laser using a Single Walled Carbon Nanotube Film with Resonant Absorption at 2.4 um",
CLEO®/Europe-EQEC 2019, CA-6.1, Munich, Germany, 24th June 2019.

Daiki Okazaki, Hayato Arai, Esko I. Kauppinen, Shohei Chiashi, Shigeo Maruyama, and Satoshi Ashihara,
"Carbon Nanotube Mode-Locked Cr:ZnS Laser with 400 nm Tuning Range",
The 8th Advanced Lasers and Photon Sources (ALPS 2019), ALPS-11-02, Yokohama, Japan, 24th April 2019.
* The Best Student Oral Paper Award in the 8th Advanced Lasers and Photon Sources

Poster

Daiki Okazaki, Tsuneto Kanai, Linpeng Yu, Ryo Yasuhara, and Shigeki Tokita
“Development of 7-pass Fe:ZnSe amplifier seeded by KTA-based OPA at 3.9 um”,
The 13th Advanced Lasers and Photon Sources (ALPS 2024), ALPSp1-04, Yokohama, Japan, 24th April 2024.

Co-author

Shigeki Tokita, Shinichiro Masuno, Daiki Okazaki, Masahiro Uemukai, Izumi Ogawa, Hideaki Niki, Anawat Rittirong, Saori Umehara, Sei Yoshida, Noriaki Miyanaga
“Calcium Isotope Separation using High-PowerDiodeLasers for Neutrinoless Double-Beta Decay Detection”,,
The 7th International Symposium on Laser Interaction with Matter (LIMIS 2024), S04, Shenzhen, China, 21st November 2024. *Keynote talk

Shigeki Tokita, Shinichiro Masuno, Daiki Okazaki, Masahiro Uemukai, Izumi Ogawa, Hideaki Niki, Anawat Rittirong, Saori Umehara, Sei Yoshida, Noriaki Miyanaga
“Development of a 423-nm single-frequency high-power diode laser system for 48Ca isotope separation”,,
SPIE/COS Photonics Asia, 13238-18, Nantong, China, 13rd October 2024. *Invited

Tsuneto Kanai, Edgar Kaksis, Audrius Pugžlys, Andrius Baltuška, Daiki Okazaki, Ryo Yasuhara, Shigeki Tokita
“Supercontinuum-seeded 4-micron KTA Optical Parametric Amplifier for Seeding a High Energy Fe:ZnSe Multipass Amplifier and Related Applications in Particle Physics”,,
Laser Congress 2023, Washington, USA, 10th October 2023. *Invited

Wenqing Song, Daiki Okazaki, Ikki Morichika, and Satoshi Ashihara,
“Background-Free Vibrational Spectroscopy based on Destructive Interference around 2.3 um”,
CLEO PacificRim 2022, CWP17A-01, Sapporo, Japan, 3rd August 2022. *Invited

Ko Arai, Daiki Okazaki, Ikki Morichika, and Satoshi Ashihara,
“Optical Field Detector for Sub-Nanojoule Pulses using Insulator-Encapsulated Metal Nanostructures”,
CLEO PacificRim 2022, CTuA1A-04, Sapporo, Japan, 1st August 2022.

Ko Arai, Daiki Okazaki, Ikki Morichika, and Satoshi Ashihara,
“All-Solid-State Optical Field Detector Using Metal-Insulator Hybrid Nanostructures”,
International Conference on Ultrafast Phenomena, Th1A.3 Montreal Online, 21st July 2022.

Ko Arai, Daiki Okazaki, Ikki Morichika, and Satoshi Ashihara,
“Optical manipulation of electron emission at metal-insulator interface for all-solid-state light phase detector”,
OPTICS & PHOTONICS International Congress (OPIC) 2022, OMC2-03 Yokohama, 19th April 2022.

Xiangbao Bu, Daiki Okazaki, and Satoshi Ashihara,
“Intensity noise suppression in a mode-locked polycrystalline Cr:ZnS laser employing inherent second harmonic generation”,
The 11th Advanced Lasers and Photon Sources (ALPS 2022), ALPS-2-03, Yokohama, Japan, 18th April 2022.

Tobias Kugel, Daiki Okazaki, and Ko Arai, and Satoshi Ashihara,
“Cr:ZnS laser pulse characterization by two-dimensional spectral shearing interferometry”,
OSJ-OSA-OSK Joint Symposia in Optics & Photonics Japan 2020, 14pCJ4 Online, 14th November 2020. * OSJ/OSA Student Prize

Co-author, poster

Shigeki Tokita, Daiki Okazaki, Shinichiro Masuno, Masahiro Uemukai, Izumi Ogawa, Hideaki Niki, Anawat Rittirong, Saori Umehara, Sei Yoshida, Noriaki Miyanaga
“Development of a blue-violet high-power single-frequency diode laser system for 48Ca isotope separation”,,
11th EPS-QEOD Europhoton Conference, FR-2.1, Vilnius, Lithuania, 27th August 2024.

Edgar Kaksis, Tsuneto Kanai, Audrius Pugžlys, Andrius Baltuška, Daiki Okazaki, Ryo Yasuhara, and Shigeki Tokita
“Development of a 6-mJ, 100-Hz, femtosecond Yb:CaF2 regenerative amplifier for driving 4-micron KTA parametric amplifiers”,
Quantum Beam Application for Science and Industries (Q-BASIS 2023), PO-12, SANKEN, Osaka, Japan, 26th April 2023.

Tsuneto Kanai, Edgar Kaksis, Audrius Pugžlys, Andrius Baltuška, Daiki Okazaki, Ryo Yasuhara, and Shigeki Tokita
“Supercontinuum-seeded 4-micron KTA optical parametric amplifier for seeding TW-class Fe:ZnSe multipass amplifiers”,
Quantum Beam Application for Science and Industries (Q-BASIS 2023), PO-09, SANKEN, Osaka, Japan, 26th April 2023.

Tobias Kugel, Daiki Okazaki, Ko Arai, and Satoshi Ashihara,
“Two-dimensional spectral shearing interferometry (2DSI) designed for mode-locked Cr:ZnS lasers”,
CLEO®/Europe-EQEC 2021, CF-P.5, Online Munich, 23rd June 2021.

Fundings(PI)

JST PRESTO: [Photonics Synergy] Pioneering the Synergy of Information and Physics Connected by Optics and Photonics (FY2024-FY2027) 40.0 million JPY,
「赤外・テラヘルツ光シンセサイザの開発」


The Sumitomo Foundation 2023 Basic Science Research Grant (FY2023-FY2024) 1.2 million JPY,
「中赤外域における波長可変バーストパルス光源の開発」


The AMADA Foundation 2023 Research Promotion Grant for Young Researchers (FY2023-FY2025) 2.0 million JPY,
「高効率なフェムト秒レーザプロセッシングに向けた新しいバーストパルス発生手法の開拓」


Grants-in-Aid for Scientific Research (KAKENHI) "Research Activity Startup" (FY2023-FY2024) 2.86 million JPY,
「高強度レーザーを用いたマルチスペクトルピーク光源技術の探求」


The Yamada Science Foundation 2023 Research Support (FY2023-FY2025) 3.0 million JPY,
「レーザーダイオード励起による高出力な波長3um帯ファイバーレーザーの開発」


Japan Society for the Promotion of Science (JSPS) Research Fellowship for Young Scientists DC1 (FY2020-FY2022) 3.1 million JPY,
「Cr:ZnSを用いた中赤外超短パルス光源の開発とアプリケーションの新規開拓」

Travel Grant

The Marubun Research Promotion Foundation 2024 Collaborative Research Grant [2nd Term] 1.5 million JPY


The Yoshida Science and Technology Foundation 2022 4th Term International Research Meeting Dispatch Grant
(International Conference CLEO®/Europe-EQEC 2023, 260,000 JPY)

The Marubun Research Promotion Foundation 2023 1st Term International Exchange Grant
(International Conference CLEO®/Europe-EQEC 2023, 200,000 JPY)

The Marubun Research Promotion Foundation 2020 1st Term International Exchange Grant
(International Conference Ultrafast Phenomena 2020, 100,000 JPY, declined due to the COVID-19 pandemic)

The University of Tokyo Institute of Industrial Science, General Affairs Department, International Exchange Team 2020 1st International Research Meeting Dispatch Grant
(International Conference Ultrafast Phenomena 2020, 204,000 JPY, declined due to the COVID-19 pandemic)

Fundings(Collaboration)

Grants-in-Aid for Scientific Research (KAKENHI) Transformative Research Areas (A) (FY2024-FY2028)
「マヨラナ性検証に向けた二重ベータ崩壊測定の高感度化」


Grants-in-Aid for Scientific Research (KAKENHI) Scientific Research (B) (FY2023-FY2025)
「ゼプト秒原子・分子・素粒子物理学のための中赤外レーザー駆動X線分光システムの開発」


Grants-in-Aid for Scientific Research (KAKENHI) Scientific Research (B) (FY2021-FY2023)
「中赤外高出力超短パルスレーザーの開発と軟物質微細加工への応用」

Education

2024 Kyoto University Graduate School of Science, Laser Science Seminar AB

Late 2023 Kyoto University Faculty of Science, Physics Department (Undergraduate Year 2), Modern Physics (Relay Lectures) October 3

Late 2023 Kyoto University Faculty of Science, Physics Department (Undergraduate Year 3), Physics Science Problem Exercises A4-2

Summer Intensive 2023 Kyoto University Faculty of Science, Physics Department (Undergraduate Year 2), Modern Physics Experiment (FY2023)

Committee

The Laser Society of Japan, Technical Committee on Mid-Infrared Laser Technology, Secretary (2023)

Kyoto University Institute for Chemical Research, Public Relations Committee, Member (2023)

FY2022 Outstanding Oral Presentation Award, Next-Generation Fiber Laser Technology Workshop,
「分子の指紋を重畳したCr:ZnS中赤外モード同期レーザー」（2022年11月）

7th OPJ (Optics & Photonics Japan) Outstanding Presentation Award,
「分子の指紋を重畳したモード同期Cr:ZnSレーザー」（2021年10月）

47th Japan Society of Applied Physics Young Scientist Presentation Award,
「単層カーボンナノチューブフィルムを用いたCr:ZnS中赤外モード同期レーザー II」（2020年3月）

2019 PKU-UTokyo Nano-Carbon Summer Camp Best Proposal Award,
“The Potential Application of Twisted Bi-layer Graphene in Mode-locking Laser”（2019年8月）

The Best Student Oral Paper Award in the 8th Advanced Lasers and Photon Sources,
“Carbon Nanotube Mode-Locked Cr:ZnS Laser with 400 nm Tuning Range”（2019年4月）