manifestation_id original_title title_alternative title_transcription statement_of_responsibility serial manifestation_identifier creator contributor publisher date_of_publication year_of_publication publication_place manifestation_created_at manifestation_updated_at carrier_type content_type frequency language isbn issn ncid 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 doi jpno ncid lccn iss_itemno item_id item_identifier binding_item_identifier call_number library shelf item_note accepted_at acquired_at item_created_at item_updated_at 105427 Observation of Blowing Out in Low Loss Passive Optical Fuse Formed in Silica Glass Optical Fiber Circuit TODOROKI Shin-ichi//Inoue S. "" "" 2004-05-21 00:00:00 +0900 2004 2015-12-15 21:30:48 +0900 2023-07-31 14:27:46 +0900 online_resource text unknown English "" "" 0 0 https://hdl.handle.net/20.500.11932/28361 Guest Low loss (less than 1 dB) passive optical fuses were realized by inserting 50-um-thick TeO2 glass layer into a single-mode silica glass fiber circuit with carbon coating. On the basis of real-time observation of their fusing action, the mechanism of losing its transparency is discussed. The observed loss drop is found to be an overlap of decoupling of the circuit and transient light flux from the burned coating. The critical input power to blow out is expected to be raised by eliminating its insertion loss. "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" optical fiber//tellurium oxide glass//carbon//optical fuse//hybrid device "" "" "" "" 97295 web web 2023-07-31 14:27:46 +0900 2023-07-31 14:27:46 +0900 105426 "Multi-dimensional data management by virtual sample library written in object-oriented script language Ruby" TODOROKI Shin-ichi//Inoue S. "" "" 2004-02-01 00:00:00 +0900 2004 2015-12-15 21:30:46 +0900 2023-07-31 14:45:19 +0900 online_resource text unknown English "" "" 293 296 https://hdl.handle.net/20.500.11932/28364 Guest "Virtual sample library (VSL) is developed for accessing multi-dimensional data acquired from several measurements on a single combinatorial sample library. Management of such data is generally very hard because each data is stored independently in various format. The data is structuralized and standardized by VSL, which has a hierarchy structure whose top layer has the same geometry of the combinatorial sample library. Each data is stored into the VSL systematically according to their coordinates in the library, the name of the measurements, and the dimension of the data. Thus, VSL can provide any data for analysis and visualization by specifying their identifying information. An actual example is demonstrated for the case of one-dimensional combinatorial glass sample library. Some tellurite glass libraries containing Er and F are annealed in a temperature-gradient furnace and the decay curves of 1.5 um-fluorescence of Er3+ are recorded along the libraries in order to find annealing conditions for precipitation of Er-containing fluoride crystals. Their fluorescence spectra, fluorescence lifetime, state of precipitates as a function of annealing conditions (7-dimensional data) are plotted in two figures through VSL. " "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" multi-dimensional data//virtual sample library//object-oriented//informatics//multi-dimensional data//virtual sample library//object-oriented//informatics//multi-dimensional data//virtual sample library//object-oriented//informatics "" "" "" "" 100564 web web 2023-07-31 14:45:19 +0900 2023-07-31 14:45:19 +0900 105425 Optical fuse by carbon-coated TeO2 glass segment inserted in silica glass optical fiber circuit TODOROKI Shin-ichi//Inoue S. "" "" 2004-01-23 00:00:00 +0900 2004 2015-12-15 21:30:45 +0900 2023-07-31 14:19:20 +0900 online_resource text unknown English "" "" 0 0 https://hdl.handle.net/20.500.11932/28366 Guest Excessive-light-induced melt down was observed in a carbon-coated TeO2 glass segment formed between a pair of optical fiber end-faces. This structure was made by splicing single-mode silica fibers through TeO2 glass melt to form a necked bridge, which was coated with carbon-containing paint after quenching it. Optical fusing action was induced by 0.3--1.5 W of CW light (1.54 um) and its output power dropped by 12 dB on average. Optical decoupling seems to be induced by not only deformation but also crystallization of the glass bridge. Its quite a high insertion loss of about 2dB can be reduced by introducing some refractive index modulations into the present structure. "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" optical fiber//tellurium oxide glass//carbon//optical fuse//hybrid device "" "" "" "" 95727 web web 2023-07-31 14:19:20 +0900 2023-07-31 14:19:20 +0900 105418 Optical fuse made of silica glass optical fibers spliced through low-melting glass with carbon-coating TODOROKI Shin-ichi//Inoue S. "" "" 2004-09-27 00:00:00 +0900 2004 2015-12-15 21:30:39 +0900 2023-07-31 14:18:29 +0900 online_resource text unknown English "" "" https://hdl.handle.net/20.500.11932/28389 Guest "Light-induced breakdown of low-melting glass with thickness of 50 um is demonstrated, which was coated with carbon paint and formed between two end of single-mode silica glass optical fibers. This phenomenon is useful to make irreversible optical limiting devices known as optical fuse. The present structure breaks by 1.2-5.3 W of incident light (~1.5 um), exhibits low insertion loss of less than 1 dB, and is formed by dipping-up a small amount of hot glass melt between fibers, aligning the fibers and quenching them. The relation between shape of the captured melt and its insertion loss is discussed. " "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" optical fuse//optical fiber//low melting glass//telluria glass//light-induced deformation "" "" "" "" 95567 web web 2023-07-31 14:18:29 +0900 2023-07-31 14:18:29 +0900 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 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 2015-12-15 21:30:36 +0900 2022-07-17 23:11:35 +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 "" "" "" "" 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 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 105408 ファイバフューズ点火現象の直接観察 TODOROKI Shin-ichi//井上 悟 "" "" 2005-11-21 00:00:00 +0900 2005 2015-12-15 21:30:28 +0900 2023-07-31 14:20:32 +0900 online_resource text unknown Japanese "" "" https://hdl.handle.net/20.500.11932/28394 Guest "シリカガラス製単一モード光ファイバにおけるファイバフューズ発生の瞬間の超高速写真撮影に成功した。安定な伝搬モードに移行する直前に、空孔生成を伴わない過渡的な伝搬モードが存在する。 " "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" fiber fuse//ignition "" "" "" "" 95954 web web 2023-07-31 14:20:32 +0900 2023-07-31 14:20:32 +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 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 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