論文 - 加来 昌典
-
レーザー生成プラズマ光源を用いたナトリウムの真空紫外域における吸収分光測定
加来昌典，東啓太，柳田大志，窪寺昌一
電気学会研究会資料 光・量子デバイス研究会 ODQ-12-017 17 - 21 2012年3月
記述言語：日本語 掲載種別：研究論文（その他学術会議資料等）
-
Quasi-point incoherent ArF* excimer emission source at 193 nm using a laser-produced plasma 査読あり
Masanori Kaku, Yusuke Sato, and Shoichi Kubodera
Applied Physics B 107 85 - 89 2012年2月
記述言語：英語 掲載種別：研究論文（学術雑誌）
-
Kaku M., Matsuura Y., Kubodera S.
IEEJ Transactions on Electronics, Information and Systems 132 ( 8 ) 1283 - 1286 2012年
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：IEEJ Transactions on Electronics, Information and Systems
We observed that the emission intensity in extreme and vacuum ultraviolet spectral regions using a laser-produced copper tungsten alloy plasma was 1.3 times higher than that using a pure tungsten plasma. The enhancement of the emission intensity was explained by the difference of the Rosseland mean opacity of each plasma. © 2012 The Institute of Electrical Engineers of Japan.
-
佐々木 亘, 瀧川 靖雄, 加来 昌典, 甲藤 正人, 窪寺 昌一, 横谷 篤至, 宮林 延良
レーザー学会研究会報告 = Reports on the Topical meeting of the Laser Society of Japan 420 31 - 35 2011年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
-
加来 昌典, 松浦 悠太, 甲藤 正人, 横谷 篤至, 窪寺 昌一, 佐々木 亘, 宮林 延良
レーザー学会研究会報告 = Reports on the Topical meeting of the Laser Society of Japan 420 25 - 29 2011年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
-
Novel method of pulsed laser deposition using liquid flow target
Katto M., Kaku M., Kubodera S., Yakotani A.
30th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2011 1000 - 1004 2011年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：30th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2011
We proposed a novel scheme for film deposition based on the pulsed laser deposition. We supply the liquid flow as target in and pulsed laser was irradiated it. Ablated species from the liquid-target was deposited on the substrate. In this method we can always obtain the constant target status and we can keep film quality as good for long time. First, we demonstrate to fabricate SnO x film using SnO 2 colloidal solution. We are now trying to fabricate a hydroxyapatite films suing a colloidal hydroxyapatite solution.
-
Mo-Siミラーの光洗浄と光脱離分析評価
佐々木亘，瀧川靖雄，加来昌典，甲藤正人，窪寺昌一，横谷篤至，宮林延良
レーザー学会第420回研究会報告 RMT-11 31 - 35 2011年12月
記述言語：日本語 掲載種別：研究論文（その他学術会議資料等）
-
レーザー生成プラズマ極端紫外光源の開発と表面分析への応用
加来昌典，松浦悠太，甲藤正人，横谷篤至，窪寺昌一，佐々木亘，宮林延良
レーザー学会第420回研究会報告 RMT-11 25 - 29 2011年12月
記述言語：日本語 掲載種別：研究論文（その他学術会議資料等）
-
Vacuum ultraviolet Ar 2* laser at 126 nm pumped by an infrared high-intensity laser
Kaku M., Katto M., Kubodera S.
2011 Int. Quantum Electron. Conf., IQEC 2011 and Conf. Lasers and Electro-Optics, CLEO Pacific Rim 2011 Incorporating the Australasian Conf. Optics, Lasers and Spectroscopy and the Australian Conf. 1550 - 1552 2011年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：2011 Int. Quantum Electron. Conf., IQEC 2011 and Conf. Lasers and Electro-Optics, CLEO Pacific Rim 2011 Incorporating the Australasian Conf. Optics, Lasers and Spectroscopy and the Australian Conf.
We have observed similar small signal gain coefficients of 0.84 and 0.86 cm -1 in two different experiments, where Ar 2 * was produced in free space filled with Ar and inside an Ar-filled hollow fiber, respectively. © 2011 IEEE.
-
Vacuum ultraviolet Ar2* laser at 126 nm pumped by an infrared high-intensity laser
Kaku M., Katto M., Kubodera S.
Optics InfoBase Conference Papers 1550 - 1552 2011年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Optics InfoBase Conference Papers
We have observed similar small signal gain coefficients of 0.84 and 0.86 cm-1 in two different experiments, where Ar 2 * was produced in free space filled with Ar and inside an Ar-filled hollow fiber, respectively. © 2011 AOS.
-
Vacuum ultraviolet Ar2* laser at 126 nm pumped by an infrared high-intensity laser 査読あり
Masanori Kaku, Masahito Katto, and Shoichi Kubodera
Proceedings of IQEC/CLEO Pacific Rim 2011 C460 2011年8月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
-
Amplification properties of vacuum ultraviolet Ar2 produced by infrared high-intensity laser
Kaku M., Harano S., Matsumoto R., Katto M., Kubodera S.
Optics Letters 36 ( 14 ) 2719 - 2721 2011年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Optics Letters
We report optical amplification of Ar* 2 at 126nm, pumped by optical-field-induced ionization (OFI) created by an infrared high-intensity laser. A gain-length product of 0.84 was obtained by using multipass amplification with a vacuum ultraviolet (VUV) cavity. The gain-length product was increased up to 4.3 through the use of single-pass amplification with a VUV reflector and a hollow 5:0 cm-long fiber. Similar small signal gain coefficients of 0.84 and 0:86cm?1 were obtained in two different experiments, in which OFI Ar plasma gain media were produced in free space filled with Ar and inside an Ar-filled hollow fiber. © 2011 Optical Society of America.
DOI： 10.1364/OL.36.002719
-
Amplification properties of vacuum ultraviolet Ar2* produced by an infrared high-intensity laser 査読あり
Masanori Kaku, Shinya Harano, Ryota Matsumoto, Masahito Katto, and Shoichi Kubodera
Optics Letters 36 ( 14 ) 2719 - 2721 2011年6月
記述言語：英語 掲載種別：研究論文（学術雑誌）
-
Autocorrelation of femtosecond VUV pulses using multiphoton ionization
Kaku M., Nagaya W., Zushi H., Katto M., Kubodera S.
Proceedings of SPIE - The International Society for Optical Engineering 7915 2011年3月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings of SPIE - The International Society for Optical Engineering
We have developed an autocorrelator utilizing multiphoton ionization of rare gases as a nonlinear medium to evaluate the pulse width of a femtosecond Ti:Sapphire laser at 882 nm. The autocorrelation width of 171 fs (FWHM) was evaluated by the autocorrelator utilizing nine-photon ionization of Ar. By using the ninth-order correlation factor of 1.06, the actual pulse width of 161 fs (FWHM) was determined, which was consistent to that of 165 fs (FWHM) measured with a two-photon autocorrelator. The autocorrelation measurement utilizing the multiphoton ionization of Ar should be applied to vacuum ultraviolet (VUV) ultrashort pulses at 126 nm, since neutral Ar atoms will be ionized by two-photon absorption. This method has a potential to become a versatile autocorrelator that characterizes femtosecond laser pulse widths in the wide spectral range between IR and VUV. © 2011 SPIE.
DOI： 10.1117/12.872099
-
Autocorrelation of femtosecond VUV pulses using multiphoton ionization 査読あり
Masanori Kaku, Wataru Nagaya, Hironari Zushi, Masahito Katto, and Shoichi Kubodera
Proceedings of SPIE 7915 79150G-1 - 7 2011年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
-
Surface analysis system by VUV photons-stimulated desorption
Katto M., Yokotani A., Kaku M., Kubodera S., Miyabayashi N., Sasaki W.
29th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2010 - Congress Proceedings 103 1439 - 1443 2010年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：29th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2010 - Congress Proceedings
We developed a novel surface analysis system using a vacuum ultraviolet (VUV) photons. When the VUV photons were irradiated on the material surface, surface desorption was stimulated. The desorbed species were analyzed by the mass analyzer. First, we studied the decomposition process excited by VUV excimer lamps. We found that the different photon energy resulted in the different time dependence of the fragment detection even if the contamination had similar chemical construction. It suggested that the tracing the decomposition process We developed an analyzing system, called "photo-stimulated desorption mass spectrometer (PSD)". A broadband VUV radiation for surface desorption was obtained from the Ar plasma excited by a Q-SW Nd:YAG laser. We selected and scanned wavelength by a monochromator. The desorbed species were analyzed by the quadrupole mass analyzer. We scanned the VUV wavelength and obtained the mass data. This PSD system enables us to analyze without damage on the sample.
-
加来 昌典, 甲藤 正人, 横谷 篤至, 窪寺 昌一, 佐々木 亘, 宮林 延良
電気学会研究会資料. OQD, 光・量子デバイス研究会 2010 ( 46 ) 39 - 43 2010年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
-
極端紫外光源を用いた光脱離質量分析装置の開発
加来昌典，甲藤正人，横谷篤至，窪寺昌一，佐々木亘，宮林延良
電気学会研究会資料 光・量子デバイス研究会 OQD-10-54 39 - 43 2010年12月
記述言語：日本語 掲載種別：研究論文（その他学術会議資料等）
-
Novel analysis system using surface desorption stimulated by VUV photons from laser-produced plasma
Katto M., Kaku M., Kubodera S., Yokotani A., Miyabayashi N., Sasaki W.
Proceedings of SPIE - The International Society for Optical Engineering 7751 2010年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings of SPIE - The International Society for Optical Engineering
We proposed and developed a novel surface analysis system using vacuum ultraviolet (VUV) photons. When the VUV photons were irradiated on the material surface, surface desorption was stimulated. The desorbed species were analyzed by the mass spectrometer. First, we studied the decomposition process induced by VUV photons from excimer lamps. We found that the different photon energy resulted in the different time dependence of the fragments signals even if the materials had similar chemical construction. It suggested that the identification of the materials should be possible by tracing the decomposition process. We developed an analyzing system, called "Photo-Stimulated Desorption (PSD) mass spectrometer" using a broadband VUV radiation from the Ar plasma excited by a Q-switched Nd:YAG laser. The desorbed species were analyzed by the quadrupole mass spectrometer. This PSD system was useful surface analysis tool not only for the semiconductor but also plastics, which is easily affected by heat. © 2010 Copyright SPIE - The International Society for Optical Engineering.
DOI： 10.1117/12.880303
-
Vacuum ultraviolet argon excimer laser at 126 nm excited by a high intensity laser
Kaku M., Harano S., Katto M., Kubodera S.
Proceedings of SPIE - The International Society for Optical Engineering 7751 2010年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings of SPIE - The International Society for Optical Engineering
We have observed the optical amplification of the Ar 2 * excimer at 126 nm pumped by optical-field-induced ionization (OFI) caused by an infrared high-intensity laser. We have evaluated similar small signal gain coefficients of approximately 1.0 cm -1 in two different experiments, where OFI Ar plasmas as gain media were produced in free space filled with Ar and inside an Ar-filled hollow fiber. This indicates that the function of a hollow fiber was to guide the infrared excitation laser and VUV Ar 2 * emissions, and not to regulate the OFI plasma. Despite the gain coefficient value at 126 nm, the laser oscillation has not been observed. This was limited by the optical quality of available state-of-the-art vacuum ultraviolet optics. © 2010 Copyright SPIE - The International Society for Optical Engineering.
DOI： 10.1117/12.880749