Effective Fluorescence Lifetime and Stimulated Emission Cross-Section of Nd/Cr:YAG Ceramics under CW Lamplight Pumping
スポンサーリンク
概要
- 論文の詳細を見る
Remarkable improvements in the lifetime of the Nd upper level and in the effective stimulated emission cross-section of Nd/Cr:YAG ceramics have been theoretically and experimentally studied. Until recently, it had been thought that the long energy transition time from Cr ions to Nd ions of Nd/Cr:YAG adversely affects laser action, degrading optical–optical conversion efficiency under CW and flash lamp pumping. However, current research showed that high-efficiency energy transition has a positive effect on laser action. The effective lifetime is increased from 0.23 to 1.1 ms and the emission cross-section is effectively increased to three times for that of the conventional Nd:YAG. A small signal gain is significantly improved, and the saturation power density is reduced to 1/10 that of the Nd:YAG for the same pumping power density. A CW laser light generated in a laser diode (LD)-pumped 1064 nm Nd:YAG laser oscillator was amplified, and the measured output power was saturated. The output laser power calculated using theoretical saturation power density was consistent with the experimental results.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2008-10-25
著者
-
IZAWA Yasukazu
Institute for Laser Technology
-
Fujita Hisanori
Institute Of Laser Engineering Osaka University
-
SAIKI Taku
Institute for Laser Technology
-
IMASAKI Kazuo
Institute for Laser Technology
-
FUJIOKA Kana
Institute of Laser Engineering, Osaka University
-
Motokoshi Shinji
Institute For Laser Technology
-
Yamanaka Chiyoe
Institute For Laser Technology
-
Nakatsuka Masahiro
Institute for Laser Technology, 1-8-4 Utsubo-Honmachi, Nishi-ku, Osaka 550-0004, Japan
-
Izawa Yasukazu
Institute of Laser Engineering, Osaka University, 2-6 Yamada-Oka, Suita, Osaka 565-0871, Japan
関連論文
- 3D1-S2 身近な家電・情報機器による電磁波体験型創造性育成教材(展示セッション,日本科学教育学会 第30回年会論文集)
- Self-Controlled Short Pulse Generator from All-Fiber Coupled Fabry-Perot Cavity(Lasers, Quantum Electronics)
- Direct Absorption Spectroscopy of CO_2 Using a Coherent White Light Continuum
- シャンティングアーク放電プラズマの構造解析
- 二周波プラズマスパッタリングによる窒化アルミニウム薄膜の高速合成 : アルミニウム薄膜高速化
- 24aB15P 酸素プラズマスパッタ法による酸化ジルコニウム薄膜合成に及ぼすターゲット状態の影響(プラズマ応用、慣性核融合, (社) プラズマ・核融合学会第21回年会)
- 27aZA-8 電子レンジを用いた科学創造性育成のための教材開発(27aZA 物理教育,領域13(物理教育,物理学史,環境物理))
- リング状ホロー溝電極を用いた高密度容量結合型プラズマの生成
- リング状ホロー電極を用いた容量結合型プラズマの高密度化
- リング状溝電極を用いた高密度高周波プラズマ生成とその空間構造
- 2008リフレッシュ理科教室(九州支部佐賀会場)開催報告 : "キミは未来の科学者だ!"-光・音・かぜ…-
- 誘電体バリヤ放電に及ぼすXe/Neガス混合比の影響
- C_2H_2F_2を用いたプラズマCVD法による撥水性薄膜合成とその密着性の検討
- 高周波スパッタ中の炭素微粒子発生と成長過程
- 2007リフレッシュ理科教室(九州支部佐賀会場)開催報告 : "キミは未来の科学者だ!"-エネルギーをつくる、エネルギーをつかう-
- PCS法により作製したZnO-TiO_2-CoO-Al_2O_3系熱電材料の抵抗温度特性
- プロセス用高周波・マイクロ波プラズマ源の開発とその応用
- PCS法により作製したZnO-TiO_2-CoO-Al_2O_3セラミックスの熱電特性と微細構造
- 2006リフレッシュ理科教室(九州支部佐賀会場)開催報告 : "キミは未来の科学者だ!" -通信の科学-
- パルス電流焼結法を用いた酸化亜鉛系セラミックスの焼結に対する試料内部電流の影響
- 家電・情報機器による創造性育成教材 : 電子レンジのふしぎ
- 27aUC-12 紫外線照射によって非等方的な強結合状態を持つ微粒子プラズマの生成(27aUC プラズマ基礎(強結合系),領域2(プラズマ基礎・プラズマ科学・核融合プラズマ・プラズマ宇宙物理))
- 2005年度リフレッシュ理科教室(九州支部佐賀会場)開催報告キミは未来の科学者だ! : サイエンスマジック
- Mechanical-Stress Induced Nd:YAG Active Quarter-Wave Plate
- 間欠ジルコニウムアークPBII&D法によるジルコニア皮膜
- 24aB14P C_2H_2F_2ガスを用いた高周波プラズマCVDによる超撥水性薄膜合成とその密着性向上(プラズマ応用、慣性核融合, (社) プラズマ・核融合学会第21回年会)
- Ablation and Amorphization of Crystalline Si by Femtosecond and Picosecond Laser Irradiation
- Generation of High Efficiency 2μm Laser Pulse from a Periodically Poled 5mol% MgO-Doped LiNbO_3 Optical Parametric Oscillator
- Thermally Induced Birefringence Compensation in High Average Power Nd:YAG Laser
- Thermal-Lens-Effect Compensation of Nd:YAG Rod Laser Using a Solid Element of Negative Temperature Coefficient of Refractive Index
- Compact Temporal-Pulse-Compressor Used in Fused-Silica Glass at 1064nm Wavelength
- Nd/Cr:YAG Ceramic Rod Laser Pumped Using Arc-Metal-Halide-Lamp
- Self-Starting Pulse Generation from Cooled Erbium-Doped Fiber Ring Laser(Lasers, Quantum Electronics)
- Dependences of Laser-Induced Bulk Damage Threshold and Crack Patterns in Several Nonlinear Crystals on Irradiation Direction
- Temporal Compression by Stimulated Brillouin Scattering of Q-switched Pulse with Fused Quartz Glass
- High Resistant Phase-conjugated Stimulated Brillouin Scattering Mirror Using Fused-silica Glass for Nd:YAG Laser System
- Peak Intensity Enhancement and Pulse Compression of a Picosecond Laser Pulse by Frequency Doubling with a Predelay
- Second-Harmonic Generation of a Picosecond Laser Pulse at High Intensities with Time Predelay
- Analysis and Evaluation of Zig-Zag Slab Laser Amplifier with Optical Diamond Geometry
- Development of HALNA DPSSL for the inertial fusion energy
- Diode-Pumped Glass Laser (10J x 10Hz) Development
- Quasi-CW 110kW AlGaAs Laser Diode Array Module for Inertial Fusion Energy Laser Driver : Optics and Quantum Electronics
- Design and Performance of a Diode-Pumped Nd:Silica-Phosphate Glass Zig-Zag Slab Laser Amplffier for Inertial Fusion Energy : Optics and Quantum Electronics
- Thermal- and Spectral-Characteristics of High-Power Quasi-Continuous Wave 940-nm InGaAs Diode Laser Arrays
- Tunable Near-Infrared and Visible All-Solid-State Optical Parametric Oscillator Amplifier System Based on Potassium Titanyl Phosphate Crystal
- Bandwidth Narrowing of an All-Solid-State Optical Parametric Oscillator Amplifier System
- Thermal Birefringence Effect on the Performance of a Laser-Diode Pumped Solid-State Laser
- Temperature Dependence of Emission Cross-section of Yb:glass
- High-Sensitivity Two-Dimensional Observation of Thermal Birefringence Compensation in Laser-Diode Pumped Nd:Glass Laser Rods
- Numerical Studies on Parameters for Stable Adiabatic Inversion by Gaussian and Square Pulses
- Measurement of Dipole Matrix Element of Atomic Gd Transitions using Rabi Flopping
- Selectivity and Efficiency of Laser Isotope Separation Processes of Gadolinium
- Selectivity Loss Due to Magnetic Field in Laser Isotope Separation of Gadolinium Based on Polarization Selection Rules
- Sub-10-fs Ti:sapphire Kerr-lens Mode Locked Oscillator
- Triple-Pass Ti : sapphire Pre-Amplifier with 60dB Gain for Laser Systems Using Chirped-Pulse Amplification
- Researches on Laser Isotope Separation of Gadolinium and Boron
- High-Power Operation of 1cm Laser Diode Bars on Funryu Heat Sink Cooled by Fluorocarbons
- Characteristics of Laser Diode Bar and Stack with Jet-Type, Water-Cooled Heatsink
- Single-Wavelength 5.6kW Direct Diode Laser with a High-Efficiency Beam Combination
- Analysis of Laser Beam Propagation Effects in Atomic Laser Isotope Separation
- Extreme Ultraviolet Emission from Laser-Irradiated Low-Density Xe Targets
- Efficient High-Average-Power Operation of Q-Switched Cryogenic Yb:YAG Laser Oscillator
- New Potential of a Direct Laser-Diode-Pumped Yb:YAG Laser
- Quantum-Defect-Limited Operation of Diode-Pumped Yb : YAG Laser at Low Temperature
- Three-Wavelength Backscatter Measurement of Clouds and Aerosols Using a White Light Lidar System : Instrumentation, Measurement, and Fabrication Technology
- Gain and Spectral Characteristics of Broadband Optical Parametric Amplification
- Large molecules in high-intensity laser fields
- One-Photon Ionization of Liquid Water upon 193 nm Laser Irradiation
- Photolysis of CO_2 with 158 nm (F_2) Laser. Reactivity of O (^1D) with CH_4, CF_3H, and CF_3CH_3
- Neutral Debris Mitigation in Laser Produced Extreme Ultraviolet Light Source by the Use of Minimum-Mass Tin Target
- An Application of Quadrupole to the Handling and Selection of Laser Fusion Fuel Containers
- Energetic Proton Generation in a Thin Plastic Foil Irradiated by Intense Femtosecond Lasers
- Hyperfine Structure Constants and Isotope Shift Determination in ZrI by Laser-Induced Fluorescence Spectroscopy
- A High Resolution Infrared Spectrum of C_2H_6 Using a Pb_Sn_Te Diode Laser
- Surface Alteration of Amorphous Si_3N_4 Films by ArF Excimer Laser Irradiation
- Imaging Characteristics of a Replicated Wolter Type. : I. X-Ray Mirror Designed for Laser Plasma Diagnostics
- Density Matched Coating for Laser Fusion Targets
- Fine-Structure Splitting in ν_4 of CF_4 Measured by Tunable Diode Laser
- Fine Structures of Laser-Driven Punched-Out Tin Fuels Observed with Extreme Ultraviolet Backlight Imaging
- Spatial Effects of Laser Beam Propagation and Photoionization in a Multilevel Photoionization System
- Detection Method of Fatigue Damage in Carbon Steel Using Laser Ultrasonics
- Fabrication of Low-Density Solid Xenon as Laser-Produced Plasma Extreme Ultraviolet Source
- Photonuclear Reaction of Iodine-129 with Laser-Compton Scattering Gamma-Rays Using Nd:YVO_4 Laser and Electron Storage Ring
- Laser Production of Extreme Ultraviolet Light Source for the Next Generation Lithography Application
- Characteristics of Laser Diode Bar and Stack with Jet-Type, Water-Cooled Heatsink
- Analysis of Parasitic Oscillation and Evaluation of Amplifier Module of Zig-Zag Slab Laser System
- Nondestructive Detection of Small Internal Defects in Carbon Steel by Laser Ultrasonics
- Analysis and Evaluation of Zig-Zag Slab Laser Amplifier with Optical Diamond Geometry
- Extreme Ultraviolet Emission from Laser-Irradiated Low-Density Xe Targets
- Analysis and Evaluation of Laser-Induced Damage of Zig-Zag Slab Laser Amplifier
- Efficient High-Average-Power Operation of Q-Switched Cryogenic Yb:YAG Laser Oscillator
- Ablation and Amorphization of Crystalline Si by Femtosecond and Picosecond Laser Irradiation
- Quantum-Defect-Limited Operation of Diode-Pumped Yb:YAG Laser at Low Temperature
- Effective Fluorescence Lifetime and Stimulated Emission Cross-Section of Nd/Cr:YAG Ceramics under CW Lamplight Pumping
- Tunable Near-Infrared and Visible All-Solid-State Optical Parametric Oscillator Amplifier System Based on Potassium Titanyl Phosphate Crystal
- Gain and Spectral Characteristics of Broadband Optical Parametric Amplification
- Magnetic Field Effect on Laser Isotope Separation Based on Polarization Selection Rules
- Measurement of Hyperfine Structure and Isotope Shift of Transitions in Gadolinium Using Blue Diode Laser
- Development of deuterium-tritium loading vessel for laser fusion target.
- Experimental Study on Soft X-Ray Radiation Emitted from a Laser-Heated Gold Cavity