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KAKEN_18K19036seika.pdf
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Title |
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拡張ナノ領域プロセシングが実現させる微小光源開発
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カクチョウ ナノ リョウイキ プロセシング ガ ジツゲンサセル ビショウ コウゲン カイハツ
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Kakuchō nano ryōiki puroseshingu ga jitsugensaseru bishō kōgen kaihatsu
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Development of small light source with extended-nano space processing
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田邉, 孝純
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タナベ, タカスミ
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Tanabe, Takasumi
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慶應義塾大学・理工学部 (矢上) ・教授
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Research team head
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科研費研究者番号 : 40393805
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柿沼, 康弘
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カキヌマ, ヤスヒロ
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Romanization |
Kakinuma, Yasuhiro
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慶應義塾大学・理工学部 (矢上) ・教授
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Research team member
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科研費研究者番号 : 70407146
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2020
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科学研究費補助金研究成果報告書
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2019
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超精密加工の技術を用いて,切削加工のみで高Q値微小光共振器を作製した.高Q値を得るために従来は,研磨加工が必要だったが,超精密加工による延性加工モードを実現すれば,滑らかな表面を得ることができる.延性モード加工条件を明らかにして,切削加工のみでMgF2微小光共振器を作製し,Q値1億を達成した.形状を所望の形に設計することができる.2次分散と4次分散を設計した微小光共振器を用いて,光パラメトリック発振実験を行った.励起光から遠く離れた波長で位相整合が取れるために,1オクターブ以上周波数が離れた間隔でシグナル光とアイドラー光を発生させることができた.
We fabricated a high-Q microcavity only by cutting by using the ultraprecision machining. To date, post-polishing was needed to obtain a high Q microcavity, but we demonstrated that a smooth surface is obtained if a ductile mode cutting is applied that is realized by ultra-precision processing. The ductile mode cutting conditions were studied, and the MgF2 micro-optical resonator was fabricated only by cutting, where we achieved a Q value of 100 million. The shape of the cavity is obtained as designed. Optical parametric oscillation experiments were carried out by using micro-optical resonators of which second-order dispersion and fourth-order dispersion are designed accurately. Since the phase matching can be achieved at a wavelength far from the pump light, the signal and the idler light could be generated at frequencies interval of larger than one octave.
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研究種目 : 挑戦的研究 (萌芽)
研究期間 : 2018~2019
課題番号 : 18K19036
研究分野 : 光エレクトロニクス
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Mar 5, 2021 | | インデックス を変更 |
Nov 15, 2022 | | Creator Name,Creator Kana,Creator Romanization,Creator Affiliation,Creator Affiliation (Translated),Creator Role,Creator Link,Abstract 内容,Note 注記 を変更 |
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