异常强烈的多光子激发的蓝色光发光和激光来自梯子类型的oligo(p-phenylenes)
Hai Hua Fan1, Lei Guo, King Fai Li
1Department of Physics and Institute of Advanced Materials, Hong Kong Baptist University, Hong Kong, China.
Journal of the American Chemical Society
|April 24, 2012
概括
研究人员开发了新的有机分子,以有效地吸收多光子和发射蓝光. 这些材料实现了创纪录的三光子吸收截面,并证明了有效的两到五光子激发的蓝色激光.
科学领域:
- 有机化学 有机化学
- 材料科学 材料科学 材料科学
- 光子学 是一个光子学.
背景情况:
- 多光子吸收 (MPA) 对于先进的光学应用至关重要.
- 开发具有高MPA截面和高效发光的材料是一个持续的挑战.
- 梯形类型的p-phenylene提供了一个对光电子材料有前途的支架.
研究的目的:
- 为了合成和表征新的基胺末端顶层梯形类型的基烯 (p-phenylene) 基.
- 为了研究它们的多光子吸收和向上转换的光发光特性.
- 探索它们对高效蓝色激光应用的潜力.
主要方法:
- 一系列基胺末端顶顶的梯子类型基基基基基基基的合成.
- 测量非线性光学特性,包括多光子吸收截面.
- 在各种激发模式下 (两到五光子) 对上转换的蓝色光发光和激光性能的表征.
主要成果:
- 这些新型化合物表现出大大增强和高效的多光子 (两到五光子) 向上转换的蓝色光发光.
- 创纪录的高内在三光子吸收截面为4.56 × 10 (((-76) 厘米 (((6) 秒)) 在五秒制中实现.
- 证明了有效的两到五光子激发的蓝色激光,最高的两光子激发激光效率达到0.34%.
结论:
- 双胺末端顶顶的梯形类型的奥利戈 (p-phenylene) 是用于多光子吸收和蓝光发射的高效材料.
- 这些材料在非线性光学,光学传感和光电子设备中的应用具有重大潜力.
- 证明了高效的蓝色激光进一步突出了他们对光子技术的承诺.
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