Lasing and macroscopic coherence of periodic 2D and 3D microstructures in organic microcavities (Conference Presentation)
Lasing and macroscopic coherence of periodic 2D and 3D microstructures in organic microcavities (Conference Presentation)
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有机微腔中周期性 2D 和 3D 微观结构的激光和宏观相干性（会议演示）
DOI：
10.1117/12.2236308
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
K. Leo
中科院分区：
文献类型：
--
作者：
A. Mischok;T. Wagner;R. Bückner;M. Sudzius;H. Fröb;V. G. Lyssenko;K. Leo
两个最成功的微谐振器概念是垂直腔表面发射激光器（VCSEL）和分布反馈（DFB）激光器，其中垂直腔表面发射激光器（VCSEL）包括覆盖有源层的高反射DBR的垂直腔，而分布反馈（DFB）激光器中周期性光栅从有源波导（WG）层选择激光模式。这里，有机微腔与平面内周期性光子线或点耦合，以促进波导模式和垂直发射模式之间的相干相互作用，以及产生额外的平面内限制。这种图案的垂直定位在可观察的特征中起着至关重要的作用。虽然将金属或电介质线直接嵌入腔层中导致强横向限制以及光子布洛赫态的观察[1，2]，但在周期性光栅顶部上的全VCSEL堆叠的沉积揭示了新颖的特征。在这样的器件中，我们证明了角分辨远场发射中抛物面VCSEL和线性WG模式之间的相干耦合。在该系统中，激光不仅发生在VCSEL抛物线顶点，而且发生在混合点，当模式的色散交叉时，显示出显著增强的面内相干性[3]。具有垂直传播方向的两个概念上不同的设备的相干耦合与宏观相干配对促进了许多新的应用。[1]高级可选材料2（8），746（2014）[2] Phys.Rev.Appl.3，064016（2015）. [3]高级可选材料审查中（2016年）。
Two of the most successful microresonator concepts are the vertical cavity surface emitting laser (VCSEL), comprising a vertical cavity of highly reflective DBRs sandwiching an active layer, and the distributed feedback (DFB) laser, where a periodic optical grating selects laser modes from an active waveguide (WG) layer. Here, an organic microcavity is coupled with in-plane periodic photonic wires or dots to facilitate a coherent interaction between waveguided and vertically emitting modes as well as creating an additional in-plane confinement. The vertical positioning of such patterning plays a crucial role in the observable features. While embedding metallic or dielectric wires directly in the cavity layer leads to a strong lateral confinement as well as the observation of photonic Bloch states [1,2], the deposition of the full VCSEL stack on top of a periodic grating reveals novel features. In such a device, we demonstrate the coherent coupling between parabolic VCSEL and linear WG modes in the angle-resolved far field emission. In this system, lasing occurs not only at the VCSEL parabola apex but also at points of hybridization, when the dispersion of modes cross, showing a drastically enhanced in-plane coherence [3]. The coherent coupling of two conceptually different devices with perpendicular propagation directions paired with the macroscopic coherence facilitate a multitude of new applications. [1] Adv. Opt. Mater. 2(8), 746 (2014) [2] Phys. Rev. Appl. 3, 064016 (2015). [3] Adv. Opt. Mater. under review (2016).
通过选择性激励和增益控制微腔光子线中布洛赫态的激光发射
影响因子：
4.6
作者：
A. Mischok;R. Brückner;H. Fröb;V. G. Lyssenko;K. Leo;A. A. Zakhidov
通讯作者：
A. A. Zakhidov