Structure and Mechanism of Formation of Drawing- or Radiation-Induced Defects in SiO_2:GeO_2 Optical Fiber
スポンサーリンク
概要
- 論文の詳細を見る
The structure, mechanism of formation and thermal reaction of electronic defects associated with Ge in GeO_2-doped silica fiber induced by fiber-drawing or γ-irradiation were studied by detecting ESR hyperfine structures due to ^<73>Ge. The present assignment of the drawing-induced center to the Ge-E' center was confirmed from the estimated spin density on a 4s atomic orbital of ^<73>Ge(≌30%). The radiation-induced center was found to have a larger spin density on a ^<73>Ge-4s orbital(≌35%) than the drawing-induced center, and in the structural model proposed for the center, the unpaired electron is trapped on a GeO_4 group (Ge electron trapped center: GEC). Most of the GECs induced by γ-irradiation at 77 K were bleached out by annealing at RT in dry fibers, while some of the GECs changed into Ge-E' centers in irradiated GeO_2-SiO_2 glass containing a considerable number of OH groups.
- 社団法人応用物理学会の論文
- 1986-03-20
著者
-
SHIBUYA Kiyoshi
Department of Basic Pathology, Graduate School of Medicine, Chiba University
-
WATANABE YUICHI
Department of Urology, Okayama Rosai Hospital
-
Shibuya Kiyoshi
Department Of Inorganic Materials Tokyo Institute Of Technology
-
Muta Ken-ichi
Department Of Inorganic Materials Tokyo Institute Of Technology
-
Kawazoe H
Tokyo Inst. Technol. Kanagawa Jpn
-
Kawazoe Hiroshi
Department Of Inorganic Materials Tokyo Institute Of Technology
-
Watanabe Yuichi
Department Of Inorganic Materials Tokyo Institute Of Technology
-
Watanabe Yuichi
Department Of Anatomy School Of Medicine Tokushima University
-
Kawazoe Hiroshi
Department of Industrial Chemistry, Faculty of Technology, Tokyo Metropolitan University
関連論文
- Fatal infectious mononucleosis with evidence suggestive of the development of B cell lymphoma
- Hydronephrosis due to ureteral endometriosis treated by transperitoneal laparoscopic ureterolysis
- Successful management of postoperative acute respiratory distress syndrome in a patient with lung cancer
- Role of endobronchial ultrasound-guided transbronchial needle aspiration in the management of lung cancer
- POSSIBLE INVOLVEMENT OF BRAIN-DERIVED NEUROTROPHIC FACTOR (BDNF) IN THE INNERVATION OF DOPAMINERGIC NEURONS INTO THE RAT PARS INTERMEDIA(Endocrinology,Abstracts of papers presented at the 75^ Annual Meeting of the Zoological Society of Japan)
- Two-Photon Absorption in Tin Dioxide Single Crystal at 532nm
- A Solitary Metastatic Lung Tumor from Thyroid Papillary Carcinoma Diagnosed by Endobronchial Ultrasound-Guided Transbronchial Needle Aspiration (EBUS-TBNA) : Report of a Case
- Characteristics of Tumor Extension Requiring Bronchoplasty and Pneumonectomy in Patients with Lung Cancer and Positive Bronchoscopic Findings
- Lymphangioleiomyomatosis with a Giant Bulla : Report of a Case
- Endobronchial Ultrasound Guided Biopsy in Respiratory Disease-Real-time Endobronchial Ultrasound GuidedTransbronchial Needle Aspiration
- Successful Resection of a Primary Liposarcoma in the Anterior Mediastinum in a Child : Report of a Case
- Purification and Properties of the Endo-1,4-β-Glucanase from Ruminococcus albus and Its Gene Product in Escherichia coli
- Study of Oxygen-Deficient Centers in SiO_2 Films Using Photoluminescence Spectra
- Formation and Optical Absorption Spectra of Mixed Valence State of Tl in Tl_2Nb_2O_ with Pyrochlore Structure
- Novel Transparent and Electroconductive Amorphous Semiconductor:Amorphous AgSbO_3 Film
- New Oxide Phase Cd_Y_Sb_2O_7 Pyrochlore with a Wide Band Gap and High Electrical Conductivity
- Dramatic Improvement of Respiratory Condition after Lobectomy for Localized Bullous Emphysema
- Small Solitary Pulmonary Metastasis Detected Before Primary Sigmoid Colon Cancer : Report of a Case
- Predictors of Postoperative Survival in Patients with Locally Advanced Non-Small Cell Lung Carcinoma
- Change in the Oxidation State of the Adsorbed Oxygen Equilibrated at 25℃ on ZnO Surface during Room Temperature Annealing after Rapid Quenching
- Immunocytochemical Studies on the Cellular Origin of Ectopic Striated Muscle Fibers in Monolayer Cultures of Rat Anterior Pituitary Cells
- Possible Involvement of Folliculo-Stellate Cells in the Differentiation of Muscle Fibers during Monolayer Culture of Pituitary Cells
- Efficacy of Perioperative Administration of Long-Acting Bronchodilator on Postoperative Pulmonary Function and Quality of Life in Lung Cancer Patients with Chronic Obstructive Pulmonary Disease. Preliminary Results of a Randomized Control Study
- Preparation of MgIn_2O_ Thin Films on Glass Substrate by RF Sputtering
- Structure and Mechanism of Formation of Drawing- or Radiation-Induced Defects in SiO_2:GeO_2 Optical Fiber
- Risk of Acute Exacerbation of Interstitial Pneumonia After Pulmonary Resection for Lung Cancer in Patients with Idiopathic Pulmonary Fibrosis Based on Preoperative High-Resolution Computed Tomography
- The Localization of Vasoactive Intestinal Peptide (VIP)-Like Immunoreactivity in Gonadotropes of the Rat Anterior Pituitary
- Iron(III)Complex of a Trihydroxamate Ligand with an Ala-Ala-(HO)Gly-Ala Sequence as a Model for Ferrioxamines. Formation of Well-Defined Peptide Loop Structure
- Corticosteroids Stimulate the Differentiation of Growth Hormone Cells But Suppress That of Prolactin Cells in the Fetal Rat Pituitary
- Pleomorphic Carcinoma of the Lung Producing Granulocyte Colony-Stimulating Factor : Report of a Case
- THE ROLE OF THE HYPOTHALAMUS IN METAMORPHOSING RANA JAPONICA(Endocrinology,Abstracts of papers presented at the 74^ Annual Meeting of the Zoological Society of Japan)
- APOPTOSIS OF THE ORAL EPITHELIUM IN RELATION TO ADENOHYPOPHYSIAL DEVELOPMENT(Developmental Biology,Abstracts of papers presented at the 75^ Annual Meeting of the Zoological Society of Japan)
- THE DEVELOPMENTAL RELATIONSHIP BETWEEN THE BRAIN AND THE ADENOHYPOPHYSIS IN RATS : ANALYSIS IN EXPERIMENTAL EXENCEPHALIC FETUSES
- On the Acid Phosphatase Activity of the Developing Rat Anterior Pituitary Cells
- In vitro Evidence for a Neural Factor(s) Involved in the Proliferation of Adenohypophysial Primordial Cells in Fetal Rats
- Effect of Brain on Proliferative Activity of Adenohypophysial Primordial Cells in vitro(Endocrinology)
- METAMORPHIC CAPACITY OF HYPOTHALECTOMIZED RANA JAPONICA TADPOLE
- Photoluminescence in VAD SiO2:GeO2 Glasses Sintered under Reducing or Oxidizing Conditions
- The formation of trapped electrons upon the thermal dehydration-condensation of hydrated hydrogenorthophosphates.
- The "overcondensation" of phosphate ions and the formation of conjugate metal oxide upon the thermal dehydration-condensation of hydrogenorthophosphates.
- Photoluminescence Centers in VAD SiO2 Glasses Sintered under Reducing or Oxidizing Atmospheres
- Pleuroperitoneal Shunt for Refractory Chylothorax Accompanied with a Mediastinal Lymphangioma: A Case Report
- Immunohistochemical study on the fetal rat pituitary in hyperthermia-induced exencephaly