Photon echo of pentacene molecules introduced in crystals with high concentration.
スポンサーリンク
概要
- 論文の詳細を見る
Photon echo decay time is measured for pentacence molecules introduced in naphthalene and <I>p</I>-terphenyl crystals with rather high concentrations (10<SUP>−6</SUP>–10<SUP>5</SUP> mol/mol) at temperatures between 1.6 K and 4.1 K, using a tunable picosecond laser system consisting of a mode-locked YAG laser and a parametric oscillator. In naphthalene echo decay time increases with lowering temperature approaching a constant value below 2 K, but in <I>p</I>-terphenyl it is almost constant. The phase relaxation time at very low temperature is much shorter than twice the population relaxation time in both crystals, indicating that pure dephasing processes exist. Analyzing the results it turns out that there exsists a pure dephasing process which is temperature-independent and is very probably due to interactions between pentacene molecules, in addition to the temperature-dependent dephasing process due to the scattering of pseudolocalized phonons.
- 公益社団法人 日本化学会の論文
著者
-
Shionoya Shigeo
The Institute for Solid State Physics, The University of Tokyo
-
Shionoya Shigeo
The Institute For Solid State Physics The University Of Tokyo
-
Yoshikuni Yuzo
The Institute For Solid State Physics The University Of Tokyo:musashino Electrical Cammunication Lab
-
Nakamura Arao
The Institute For Solid State Physics The University Of Tokyo:department Of Applied Physics Faculty
関連論文
- Temporal Changes in Reflectivity of Crystalline Silicon in Picosecond Laser-Induced Melting
- Picosecond Dynamics of Pulsed Laser Annealing of Ion-Implanted Silicon
- Dynamical Aspects of Pulsed Laser Annealing of Ion-Implanted Silicon
- Luminescence and Inter-Valence Band Hole Relaxation in High Density Electron-Hole Plasma in CdSe and CdS
- Dynamical Aspects of Self-Trapping of 1s Excitons in KI
- Picosecond Spectroscopy of Excitonic Molecules in CuBr
- Picosecond Time of Flighi Measurements of Excitonic Polariton in CuCl
- Microcomputer-Controlled Multichannel Analyzer for Spectral Measurements of Short Light Pulses
- Pico-Second Time Dependence of Luminescence Line Due to Exciton-Exciton Collision in CdSe
- Luminescence of High Density Excitons in CdS, CdSe an ZnSe in the 4.2-90 K Temperature Range
- Dynamical Processes of High Density Single Excitons and Excitonic Molecules in CdSe
- Bose Condensation of Excitonic Moleules in CdSe
- Vibronic Structure in Luminescence Spectra of Rare Earth Ions In SrTiO_3, BaTiO_3 and Other Perovskites
- Luminescence Spectra of Sm^ in BaTiO_3 Host Lattice
- Radiative and Non-Radiative Recombination Processes of Photo-Generated Carriers in ^a-Si_xC_:H (x〜0.2)
- Effect of Internal Magnetic Field on the Optical Spectra of Sm^ Ion in TbPO_4, YPO_4 and Their Mixed Crystals
- Luminescence of Tb_Y_xPO_4 under the Strong and Selective Excitation of ^5D_4 of Tb^ Ion
- Dynamical Relaxation Processes of Excitonic Polaritons in CuCl Studied by Picosecond Induced Absorption
- Luminescence of Eu^ Ion in Antiferromagnetic KMnF_3 Crystals
- Nature of Luminescence Transitions in ZnS Crvstals
- Phonon-Assisted Energy Transfer between Trivalent Rare Earth Ions
- Phonon-Assisted Energy Transfer : Comparison between Theory and Experiment
- Mechanism and Controlling Factors of Infrared-to-Visible Conversion Process in Er^ and Yb^-Doped Phosphors
- Luminescence of KI Containing ns^2 Configuration Ions under Excitation by Exciton Absorption
- Investigation of Luminescence from Bound Excitons in KBr:I by Using Polarized Light
- Optical Studies of Resonantly Excited Excitonic Molecules in CuCl
- Picosecond Time Analysis of Excitonic Molecule Luminescence Spectra in CuCl
- Optical Dephasing Due to Virtual Transfer of Excitation Energy as Observed in Photon Echo Experiments of Pentacene Molecules in Crystals
- Electron Effective Mass of SnO_2
- Vapor Reaction Growth of SnO_2 Single Crystals and Their Properties
- Two-Photon Resonant, Coherent Raman Scattering via Excitonic Molecules in CuCl
- Fundamental Optical Properties of ZnIn_2S_4 Single Crystals
- Properties of Oxidized SnO_2 Single Crystals
- Electronic and Vibronic Spectra of Ce^ in YPO_4 and LuPO_4
- Relaxation between Excited Levels of Tb^3 Ion Due to Resonance Energy Transfer
- Electrical and Optical Properties of Reduced Stannic Oxide Crystals
- A High Sensitivity Television Camera System for Pico-Second Spectroscopy
- Exciton-Exciton Interaction in Cd(S,Se) Crystals as Studied by Using Argon Ion Laser
- Free Carrier Generation Due to Exciton-Exciton Interaction in Cd(S,Se)
- Two Types of Luminescence Transitions in CdS Involving Te Isoelectronic Traps
- Spectroscopy of Picosecond Light Pulses with a Television Camera System : Short Pulses of Light
- Luminescence of High Density Electron-Hole Plasma in GaAs
- Formation of Periodic Ripple Structures in Picosecond Pulsed Laser Annealing of Ion-Implanted Silicon
- Mechanism of the Killer Effect of Iron-Group Ions on the Green Luminescence in ZnS:Cu, Al Phosphors
- Luminescence of Bound Excitons in Tellurium-Doped Zinc Sulfide Crystals
- Luminescence from Superexchange-Coupled Cr^ Ion Pair in Binuclear Complex Salts. : II. Theoretical Considerations
- Luminescence from Superexchange-Coupled Cr^ Ion Pair in Binuclear Complex Salts. : I. Spectroscopic Investigation
- Mechanism of the Green-Copper Luminescence in ZnS Crystals. : II. Polarization Characteristics
- Polarization Characteristics of the Red Luminescence in ZnS:Cu, In Crystals
- Screening and Stark Effects Due to Impurities on Excitons in CdS
- Capture Processes of Excitons and Free Carriers as Reflected in Excitation Intensity Dependence of Edge Emission Peak in CdS
- Mechanism of the Green-Copper Luminescence in ZnS Crystals. : I. Direct Evidence for the Pair Emission Mechanism
- Spectral analysis of Luminescence of High Density Excitons in CdS
- Electrical Conductivity of SnO_2 Single Crystals at Very Low Temperatures
- Temperature Dependence of the Fundamental Optical Absorption Edge in Stannic Oxide
- Second Class Exciton Structure in Stannic Oxide
- Polarization of the Green-Copper Luminescence in Hexagonal ZnS Single Crystal
- Photo-Induced Infrared Absorption in ZnSe Single Crystals
- Polarization of the Blue-Copper Luminescence in ZnS Crystals
- Luminescence of ZnIn_2S_4 and ZnIn_2S_4:Cu Single Crystals
- Nature of the Green-Copper Luminescence Transition in ZnS as Elucidated by the Measurements of Time-Resolved SPectrum
- Drift Mobilities of Electrons and Holes in ZnS Crystals
- Vibronic Transitions of Eu^ Ions in CaWO_4 and Other Tungstates
- Capture Processes of Excitons and Free Carriers by Shallow Donor-Acceptor Pairs in CdS
- Temperature Shift of the Green-Cu Luminescence Band in ZnS Phosphors
- Photon echo of pentacene molecules introduced in crystals with high concentration.