Non-resonant power-efficient directional Nd:YAG ceramic laser using a scattering cavity.
Non-resonant power-efficient directional Nd:YAG ceramic laser using a scattering cavity.
复制标题
DOI：
10.1038/s41467-020-20114-2
复制
发表时间：
2021-01-04
影响因子：
16.6
通讯作者：
Park Y
中科院分区：
文献类型：
--
作者：
Lee K;Ma HJ;Rotermund F;Kim DK;Park Y
非谐振激光器展现出稳定一致的窄带光源的潜力。此外，非谐振激光器不需要明确的光学器件，因此使可用的激光增益材料类型大大多样化，包括粉末、薄膜和浑浊陶瓷。尽管具有这些固有的优势，但非谐振激光器的实际应用迄今为止受到限制，主要是因为它们的功率效率低和全向发射。为了克服这些限制，我们在这里提出了一种基于具有小入口的球形散射腔的非谐振激光器光阱设计。使用多孔 Nd3+:YAG 陶瓷，可以观察到定向激光发射，并且斜率效率和线宽（低至 32pm）显着增强。还开发了一个理论模型来描述和预测所提出的非谐振激光器的操作特性。非谐振激光器具有许多优点，因为它允许使用多种架构和增益介质，但由于其方向性和效率低，其应用受到限制。在这里，作者提出了一种具有单孔的散射腔激光器，以实现高效和定向发射。
Non-resonant lasers exhibit the potential for stable and consistent narrowband light sources. Furthermore, non-resonant lasers do not require well-defined optics, and thus has considerably diversified the available types of laser gain materials including powders, films, and turbid ceramics. Despite these intrinsic advantages, the practical applications of non-resonant lasers have been limited so far, mainly because of their low power efficiency and omnidirectional emission. To overcome these limitations, here we propose a light trap design for non-resonant lasers based on a spherical scattering cavity with a small entrance. Using a porous Nd3+:YAG ceramic, directional laser emission could be observed with significant enhancements in the slope efficiency and linewidth (down to 32 pm). A theoretical model is also developed to describe and predict the operation characteristics of proposed non-resonant laser. Non-resonant lasers have many advantages since the allow for a diverse set of architectures and gain media, but their application is limited due to their low directionality and efficiency. Here, the authors present a scattering cavity laser with a single hole to achieve efficient and directional emission.
登录
查看更多内容
影响因子：
16.6
作者：
Hokr, Brett H.;Bixler, Joel N.;Cone, Michael T.;Mason, John D.;Beier, Hope T.;Noojin, Gary D.;Petrov, Georgi I.;Golovan, Leonid A.;Thomas, Robert J.;Rockwell, Benjamin A.;Yakovlev, Vladislav V.
通讯作者：
Yakovlev, Vladislav V.
影响因子：
2.4
作者：
Bahoura, M;Morris, KJ;Noginov, MA
通讯作者：
Noginov, MA
影响因子：
1.7
作者：
Barredo-Zuriarrain, M.;Iparraguirre, I.;Balda, R.
通讯作者：
Balda, R.
影响因子：
64.8
作者：
LAWANDY, NM;BALACHANDRAN, RM;SAUVAIN, E
通讯作者：
SAUVAIN, E
DOI：
10.1016/j.jeurceramsoc.2019.07.029
发表时间：
2019-12-01
影响因子：
5.7
作者：
Ma, Ho Jin;Jung, Wook Ki;Kim, Do Kyung
通讯作者：
Kim, Do Kyung