manifestation_id original_title title_alternative title_transcription statement_of_responsibility manifestation_identifier creator contributor publisher date_of_publication pub_date year_of_publication publication_place manifestation_created_at manifestation_updated_at carrier_type content_type frequency language isbn issn doi jpno ncid lccn iss_itemno volume_number volume_number_string edition edition_string issue_number issue_number_string serial_number extent start_page end_page dimensions height width depth manifestation_price access_address manifestation_required_role abstract description identifier:unknown identifier:nbn identifier:isbn10 identifier:iss_itemno identifier:online_isbn identifier:print_isbn identifier:print_issn identifier:online_issn identifier:escidoc identifier:nims series_statement_id series_statement_original_title series_statement_title_subseries series_statement_title_subseries_transcription series_statement_title_transcription series_statement_creator series_statement_volume_number series_statement_series_master series_statement_root_manifestation_id series_statement_manifestation_id series_statement_position series_statement_note series_statement_created_at series_statement_updated_at subject:ndlsh subject:unknown subject:bsh classification:ndc8 classification:ndc9 classification:udc item_id item_identifier binding_item_identifier call_number library shelf item_note accepted_at acquired_at item_created_at item_updated_at 105357 Refractive index reduction at the surface of Co/Cu-doped silicate glasses induced by femto-second laser irradiation TODOROKI Shin-ichi//Muraoka M.//Suehara S.//Konishi T.//Inoue S.//Yasumori A. "" "" 2005-04-01 00:00:00 +0900 2005-04-01 2005 2015-12-15 21:29:32 +0900 2025-07-14 15:47:28 +0900 online_resource text unknown English "" "" 308 311 https://hdl.handle.net/20.500.11932/33013 Guest "Femto-second laser pulses (800nm, 11nJ/pulse, 82MHz) were irradiated on the surface of Co- or Cu-doped silicate glasses (70SiO2-20NaO2-10Al2O3 doped with 20 mol% of CoO or CuO, respectively) for 1 second to modify its surface, which was observed by a scanning probe microscope and an ellipsometer. Some samples exhibited refractive index reduction without any structural modification, which was brought about by local increase in fictive temperature through spot heating and quenching. With the aid of a computer simulation using a finite element method, such a modification is found to occur when the maximum surface temperature is less than 1000 degC for the Cu-doped glass." "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" silicate glass//refractive index//fs-laser pulse irradiation//finite element method//silicate glass//refractive index//fs-laser pulse irradiation//finite element method//silicate glass//refractive index//fs-laser pulse irradiation//finite element method "" "" "" "" 104436 web web 2025-07-14 15:02:30 +0900 2025-07-14 15:47:28 +0900 105356 "Management of Combinatorially Acquired Multi-dimensional Data through Object-Oriented Virtual Sample Library" TODOROKI Shin-ichi//Inoue S. "" "" 2004-01-01 00:00:00 +0900 2004 2004 2015-12-15 21:29:31 +0900 2025-07-14 15:47:28 +0900 online_resource text unknown English "" "" https://hdl.handle.net/20.500.11932/33015 Guest "Combinatorial methods bring about plentiful data not only in size but also in dimension. To handle multi-dimensional data easily, a virtual container of combinatorially acquired data is developed which is called ``virtual sample libraries'' (VSL). VSL stores the data hierarchically in the order of (1) coordinates in the sample library, (2) names of the measurements performed, and (3) data obtained from each measurement. Thus, the loads for analysis and visualization of multi-dimensional data are reduced because the stored data can be accessed intuitively, that is, just by tracing the hierarchy structure. This framework is easily constructed by the aid of object-oriented script language which is good at describing complicated data structure. Visualization of combinatorially acquired 7-dimensional data is demonstrated. " "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" Ruby//multi-dimensional data//Ruby//multi-dimensional data//Ruby//multi-dimensional data "" "" "" "" 104435 web web 2025-07-14 15:02:30 +0900 2025-07-14 15:47:28 +0900 105355 Rapid and quantitative determination of crystallization tendency of zinc tellurite glass melt by using temperature-gradient furnace TODOROKI Shin-ichi//Matsumoto T.//Inoue S. "" "" 2002-01-01 00:00:00 +0900 2002 2002 2015-12-15 21:29:29 +0900 2025-07-14 15:47:28 +0900 online_resource text unknown English "" "" https://hdl.handle.net/20.500.11932/33016 Guest "We developed an automatic system in which we can prepare one long piece of glass sample library and anneal it successively under a temperature gradient (200∼1050^∘C/40cm). A glass capillary tube (ID 1.5 mmφ× OD 8 mmφ) is used as a cell of the library. Zinc tellurite melt at 800 ^∘C is sucked into the cell by applying a vacuum pressure to the other side of the capillary. Crystallization is observed as a white segment in the library under an appropriate annealing condition. A set of 2D sample array is obtained by preparing several sample libraries with different annealing time. Since this array itself corresponds to a T-T-T (Time-Temperature-Transform) diagram, a tangent which touches the crystallized region and pass through the melting temperature at t=0 gives critical cooling rate, Q. Compositional dependence of Q shows that the minimum of Q is not located at the eutectic point of ZnO-TeO2 system, which has been believed to be most stable composition on the basis of the known glass forming regions, but is shifted to ZnO-rich region. Considering the high reproducibility of this automated system and the large error bar of previous results, this result is more reliable. We also investigated the dependency of Q on thermal hysteresis. For the melt once quenched below the glass transition temperature (T\mathrmg) and annealed at above T\mathrmg, the Q value becomes larger than that without the quenching. This is because the former glass melt went through the nucleating temperature region located just above T\mathrmg. It is concluded that this automated system makes it easier than ever to examine quantitatively the thermal stability of glass melt having low melting temperature, which is one of the important factors for judging the feasibility of fabricating new glass devises with desired quality." "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" 104434 web web 2025-07-14 15:02:29 +0900 2025-07-14 15:47:28 +0900 104000 BibTeX-based manuscript writing support system for researchers TODOROKI Shin-ichi//Konishi Tomoya "" "" 2010-12-31 00:00:00 +0900 2010-12-31 2010 2015-05-28 18:09:25 +0900 2025-07-14 15:47:24 +0900 online_resource text unknown English "" "" 121 128 https://hdl.handle.net/20.500.11932/746546 Guest A list of publications can help researchers with their writing if each item on the list includes links to their manuscript files stored in their personal computers. This is because they can quickly find their previous work, figures and photographs from the list and reduce their writing time by reusing them. We have developed a system providing such lists on a web browser by using Ruby scripts and BibTeX bib files. This system is designed to generate an author's list of publications in various formats and to manage current manuscripts to provide an adequate return for keeping the database up to date. "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" BibTeX//Ruby//Publication list//BibTeX//Ruby//Publication list//BibTeX//Ruby//Publication list//BibTeX//Ruby//Publication list "" "" "" "" 104418 web web 2025-07-14 15:02:27 +0900 2025-07-14 15:47:24 +0900 103962 Combinatorial evaluation system for thermal properties of glass materials using a vertical furnace with temperature gradient TODOROKI Shin-ichi//Inoue S.//Matsumoto T. "" "" 2002-04-28 00:00:00 +0900 2002-04-28 2002 2015-05-28 18:09:04 +0900 2023-07-31 14:12:11 +0900 online_resource text unknown English "" "" 241 244 https://hdl.handle.net/20.500.11932/28377 Guest "Critical cooling rate Q for zinc tellurite glass system is determined based on the time-temperature-transfer (T-T-T) diagrams, which are compiled by analyzing the crystallized area in the glass sample libraries annealed simultaneously by a furnace with temperature gradient. This method reduces the laborious routine work for preparation, which is needed in the conventional method. Since the surface/volume ratio of the present samples is large, their crystallization is mainly governed by heterogeneous nucleation. Thus, the Q values in this study can be used as a practical index for the glass products whose surface should be free of being ground and/or polished, such as fire-polished lenses, optical fibers and waveguides. " "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" glass//crystallization tendency//critical cooling rate//time-temperature-transfer diagram//glass//crystallization tendency//critical cooling rate//time-temperature-transfer diagram//glass//crystallization tendency//critical cooling rate//time-temperature-transfer diagram "" "" "" "" 94372 web web 2023-07-31 14:12:11 +0900 2023-07-31 14:12:11 +0900 103749 Formation of optical coupling structure between silica glass waveguides and molten tellurite glass droplet TODOROKI Shin-ichi//Nukui A.//Inoue S. Zhu Congshan "" 2015-05-28 18:07:12 +0900 2023-07-31 14:42:08 +0900 online_resource text unknown English "" "" https://hdl.handle.net/20.500.11932/101921 Guest "Several nano liters of tellurite glass melt (xTeO2-(100-x)ZnO, x=80,90,100 in mol%) were inserted and quenched between two ends of silica glass optical fibers to form a new optical coupling structure, whose length was several hundred microns. No visible precipitates were found even in the quenched melt of 100% TeO2. On the basis of reflection and insertion loss measurements and a bending test, it is proved that there's no micro crystals in the quenched melt segment which cause light scattering and/or stress concentration. Few tens nano liters of the melt were also inserted into a silica glass capillary tube with the interior diameter of 126 $\mu$m, in order to examine their tolerance to the residual stress induced on cooling due to the large gap in thermal expansion coefficient between the two glasses. Neither fracture nor bubbles were observed in the quenched melt inside if its length is less than 2mm. This implies that tellurite melt can be introduced into voids of sub-mm in size to integrate hybrid lightwave circuits." "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" optical fiber//tellurite glass//insertion loss//thermal expansion coefficient//optical fiber//tellurite glass//insertion loss//thermal expansion coefficient//optical fiber//tellurite glass//insertion loss//thermal expansion coefficient//optical fiber//tellurite glass//insertion loss//thermal expansion coefficient "" "" "" "" 99968 web web 2023-07-31 14:42:08 +0900 2023-07-31 14:42:08 +0900 103439 Low loss optical coupling structure between two ends of silica glass optical fibers by inserting TeO2 melt TODOROKI Shin-ichi//Inoue Satoru "" "" 2003-10-02 00:00:00 +0900 2003-10-02 2003 2015-05-28 18:04:28 +0900 2023-07-31 14:46:42 +0900 online_resource text unknown English "" "" https://hdl.handle.net/20.500.11932/94914 Guest Less than 1.5 dB of insertion loss was realized in an optical coupling structure in which two TEC (Thermal-diffusion Expanded Core) fibers are spliced via quenched TeO2 melt whose length was 0.5 mm. The quenched melt seems to be free of precipitates because they would bring about larger loss if existed. The loss due to imperfect optical coupling between the fibers is estimated to be about 1 dB, which can be reduced by introducing some refractive index modulation into the present structure. This fabrication method is useful to make a connection between silica waveguides and non-silica glasses with poor thermal stability. "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" optical fiber//tellurite glass//splicing//optical fiber//tellurite glass//splicing//optical fiber//tellurite glass//splicing//optical fiber//tellurite glass//splicing "" "" "" "" 100820 web web 2023-07-31 14:46:42 +0900 2023-07-31 14:46:42 +0900