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 105417 "Formation of optical coupling structure between two ends of silica glass optical fibers by inserting tellurite glass melt" TODOROKI Shin-ichi//Nukui A.//Inoue S. "" "" 2002-05-01 00:00:00 +0900 2002-05-01 2002 2015-12-15 21:30:37 +0900 2023-07-31 14:41:14 +0900 online_resource text unknown English "" "" 476 478 https://hdl.handle.net/20.500.11932/28375 Guest " Several nano liters of tellurite glass melt was inserted and quenched between two ends of silica glass optical fibers to form a optical coupling structure, whose length was several hundred um. Dispite the large gap of thermal expansion coefficient between these glass materials, neither fracture nor bubbles were observed, which usually lead to a large optical propagation loss. The insertion loss was less than 10 dB, which was mainly due to the lack of an optical waveguide structure in the tellurite glass segment. Further loss decrease is expected to be possible by introducing a refractive index modulation. " "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" optical fiber//tellurite glass//thermal expansion//optical fiber//tellurite glass//thermal expansion//optical fiber//tellurite glass//thermal expansion "" "" "" "" 99798 web web 2023-07-31 14:41:14 +0900 2023-07-31 14:41:14 +0900 105416 "Heat-induced breakage of an optical circuit at a TeO2 glass bridge linking silica glass fibers" TODOROKI, Shin-ichi "" "" 2006-08-01 00:00:00 +0900 2006-08-01 2006 2015-12-15 21:30:36 +0900 2025-07-14 15:47:29 +0900 online_resource text unknown English "" "" 709 712 https://hdl.handle.net/20.500.11932/28314 Guest "The irreversible transformation of a tellurum oxide glass layer inserted between two ends of two silica glass optical fibers was monitored via the intensity of a light passed through the circuit. This structure is used for a heat-induced optical fuse after the soft glass layer has been coated with a light absorber. Heat-induced breakage occurred when the glass crystallized or flowed in the presence of a shearing stress. Without the stress, the optical link was maintained through the glass melt but suddenly broke due to the crystallization. On the other hand, the stress deformed the glass bridge and broke the optical link less than 0.4 sec. Thus, the shearing stress at the splicing point helps the device respond immediately and reliably." "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" optical fiber//telluria glass//plastic flow//optical fuse "" "" "" "" 104446 web web 2025-07-14 15:02:31 +0900 2025-07-14 15:47:29 +0900 105415 Blog-based research notebook: personal informatics workbench for high-throughput experimentation TODOROKI Shin-ichi//Konishi T.//Inoue S. "" "" 2006-01-31 00:00:00 +0900 2006-01-31 2006 2015-12-15 21:30:34 +0900 2023-07-31 14:37:22 +0900 online_resource text unknown English "" "" 2640 2645 https://hdl.handle.net/20.500.11932/28315 Guest "In this age of information technology, many researchers are still conservative in keeping a log of their activities in paper-based notebooks. This style of log-keeping brings about the situation that our experimental data and their descriptions are recorded separately into hard disks and papers, respectively. Such a data separation is likely to be a serious rate-limiting factor in high-throughput experimentation from the view point of getting feedback on each researcher's work from what he has done. We propose to utilize a blog (Weblog) as an electronic research notebook and discuss technical requirements for maintaining it, on the basis of the blogging experience for four years by one of the authors. We need a user-installed blog server with authentication function for personalization and network infrastructure enabling us to ``blog anytime, anywhere''. Although some knowledge-sharing systems have similar electronic notebooks as their front-end, the present blog system is different from these because it stores personal information which is not meant to be shared with others. This blog-based notebook cooperates with these e-notebooks by promoting hyperlinks among their contents, and acts as a personal informatics workbench providing connections to all the resources needed. " "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" blog//informatics//electronic notebook//high-throughput experimentation//blog//informatics//electronic notebook//high-throughput experimentation//blog//informatics//electronic notebook//high-throughput experimentation "" "" "" "" 99082 web web 2023-07-31 14:37:22 +0900 2023-07-31 14:37:22 +0900 105407 "Combinatorial Fluorescence Lifetime Measuring System for Developing Er-Doped Transparent Glass Ceramics" TODOROKI Shin-ichi//Inoue S. "" "" 2004-02-15 00:00:00 +0900 2004-02-15 2004 2015-12-15 21:30:27 +0900 2023-07-31 14:38:51 +0900 online_resource text unknown English "" "" 39 43 https://hdl.handle.net/20.500.11932/28369 Guest "Fluorescence lifetime of Er3+ was measured for F-doped tellurite glasses with parallel heat treatment under a temperature gradient atmosphere in order to find the annealing condition to make transparent glass ceramics in which Er3+ ions are located in the precipitated crystals. The preparation and annealing of the samples were performed in a vertical temperature gradient furnace, where molten glass was sucked into a pre-heated Pyrex glass tube. The annealing temperature range is between 350 degC and 800 degC. After the annealing treatment, time-resolved fluorescence emission of Er3+ (1.55um; excitation light source is 977nm) were measured sequentially along the tube. The lifetime of the emission was about 2.6 msec for as-prepared glass. We have found that the lifetime increased to 5.2 msec when the glass was annealed at 470 degC for 5 min and 550 degC for 5 min successively, although its transparency was lost. This increase implies that the Er3+ ions are embedded in fluorine-rich phase to bring about reduced non-radiative emission. We are now continuing to find the condition to get transparent glass ceramics. " "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" tellurite glass//erbium//fluorescence lifetime "" "" "" "" 99360 web web 2023-07-31 14:38:51 +0900 2023-07-31 14:38:51 +0900 105406 "Low loss optical coupling structure between two ends of silica glass optical fibers by inserting TeO2 melt" TODOROKI Shin-ichi//Inoue S. "" "" 2003-10-15 00:00:00 +0900 2003-10-15 2003 2015-12-15 21:30:25 +0900 2023-07-31 14:40:53 +0900 online_resource text unknown English "" "" 237 240 https://hdl.handle.net/20.500.11932/28372 Guest "Less than 1.5dB 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 0.5mm. 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. " "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" optical fiber//tellurite glass "" "" "" "" 99731 web web 2023-07-31 14:40:53 +0900 2023-07-31 14:40:53 +0900 105394 Two serendipitous episodes -- How I embarked on fiber fuse research TODOROKI, Shin-ichi "" "" 2007-02-05 00:00:00 +0900 2007-02-05 2007 2015-12-15 21:30:12 +0900 2023-07-31 14:28:27 +0900 online_resource text unknown English "" "" https://hdl.handle.net/20.500.11932/33124 Guest "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" optical fuse//fiber fuse//serendipity "" "" "" "" 97420 web web 2023-07-31 14:28:27 +0900 2023-07-31 14:28:27 +0900 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