Amplified spontaneous emission, optical waveguide and polarized emission based on 2,5-diaminoterephthalates

A series of 2,5-diaminoterephthalates with a simple structure were synthesized through one-step reaction, and their bar-shaped single crystals with a large size and a smooth surface have been obtained via the solvent-evaporation method. These crystals exhibit bright emission with fluorescence quantu...

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Bibliographic Details
Published inChinese chemical letters Vol. 28; no. 11; pp. 2129 - 2132
Main Authors Tang, Baolei, Zhang, Zuolun, Liu, Huapeng, Zhang, Hongyu
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.11.2017
Subjects
2,5-Diaminoterephthalates
Amplified spontaneous emission
Laser
Polarization
Waveguide
Polarization
2,5-Diaminoterephthalates
Waveguide
Laser
Amplified spontaneous emission
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Summary:A series of 2,5-diaminoterephthalates with a simple structure were synthesized through one-step reaction, and their bar-shaped single crystals with a large size and a smooth surface have been obtained via the solvent-evaporation method. These crystals exhibit bright emission with fluorescence quantum yields higher than 0.2. They display the waveguide property, and low optical loss coefficients for waveguide have been determined for the crystal of one compound. In addition, the crystal can cause linear polarization of the light emitted from it, with a high polarization contrast of 0.70. Most importantly, these crystals can realize amplified spontaneous emission （ASE）, including the red ASE, with appreciable energy thresholds of 72-198 kW/cm^2 and high gain coefficients, which suggests the potential of these crystals for the application in organic solid-state lasers.
Bibliography:11-2710/O6
2,5-Diaminoterephthalates Waveguide Polarization Amplified spontaneous emission Laser
A series of 2,5-diaminoterephthalates with a simple structure were synthesized through one-step reaction, and their bar-shaped single crystals with a large size and a smooth surface have been obtained via the solvent-evaporation method. These crystals exhibit bright emission with fluorescence quantum yields higher than 0.2. They display the waveguide property, and low optical loss coefficients for waveguide have been determined for the crystal of one compound. In addition, the crystal can cause linear polarization of the light emitted from it, with a high polarization contrast of 0.70. Most importantly, these crystals can realize amplified spontaneous emission （ASE）, including the red ASE, with appreciable energy thresholds of 72-198 kW/cm^2 and high gain coefficients, which suggests the potential of these crystals for the application in organic solid-state lasers.
ISSN:1001-8417
1878-5964
DOI:10.1016/j.cclet.2017.08.045