全有机光子准晶的强线性偏振低阈值激光。

Strongly linearly polarized low threshold lasing of all organic photonic quasicrystals.

机构信息

School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, Singapore.

出版信息

Sci Rep. 2012;2:627. doi: 10.1038/srep00627. Epub 2012 Sep 4.

DOI:10.1038/srep00627

PMID:22953048

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3432992/

Abstract

Lasing is obtained from a two-dimensional (2D) Penrose photonic quasicrystal made of a low index contrast material of holographic polymer dispersed liquid crystals (H-PDLCs) that enables a substantial reduction in the optical pumping threshold. This lasing architecture further allows for excellent linear polarization characteristics as well as wide directional dependence. The pumping threshold is fivefold lower than that obtained from the 2D defect-free photonic crystals fabricated under similar conditions. These properties make H-PDLC photonic quasicrystal promising for a new type of all organic miniature lasers.

摘要

激光是从二维（2D）彭罗斯光子准晶获得的，该准晶由低折射率对比材料的全息聚合物分散液晶（H-PDLC）制成，可大幅降低光学泵浦阈值。这种激光结构还具有出色的线性偏振特性和宽的方向依赖性。泵浦阈值比在类似条件下制造的 2D 无缺陷光子晶体低五倍。这些特性使得 H-PDLC 光子准晶成为一种新型的全有机微型激光器很有前途。