arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1808.10486physics.opticscond-mat.mtrl-sciphysics.app-ph
收藏

一种基于金刚石纳米针的无规laser

A random laser based on diamond nanoneedles

Ngoc My Hanh Duong, Blake Regan, Milos Toth, Igor Aharonovich, Judith M Dawes

摘要:

随机激光器使用辐射增益和无序介质中的多个散射体来产生光放大。在这项研究中,我们展示了一种基于金刚石纳米针的随机激光器,该纳米针作为散射体与作为增益介质的荧光染料分子相结合。使用金刚石实现的随机激光器具有无角度发射的高光谱辐射率和0.16 mJ的阈值。研究了发射与柱直径和密度的关系,并测量了柱间距和密度为336 nm和~ 2.9 × 10^10 cm-2的最佳激光条件。我们的研究结果扩大了金刚石作为实用,紧凑的光子器件和传感应用的材料平台的应用空间。

英文摘要:

Random lasers use radiative gain and multiple scatterers in disordered media to generate light amplification. In this study, we demonstrate a random laser based on diamond nanoneedles that act as scatterers in combination with fluorescent dye molecules that serve as a gain medium. Random lasers realized using diamond possess high spectral radiance with angle-free emission and thresholds of 0.16 mJ. The emission dependence on the pillar diameter and density is investigated, and optimum lasing conditions are measured for pillars with spacing and density of 336 nm and ~ 2.9x10^10 cm-2. Our results expand the application space of diamond as a material platform for practical, compact photonic devices and sensing applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑