2026-06-17

OpenAlex · Applied Optics · 2026-05-22 · Siyu Chen, Jingwei Chen, Xingyu Liu, Zhiyuan Jiang · 新论文 2026-06-15 · 相关度 29.9

英文原题Simulation study of a low-threshold, high-efficiency 1.55 µm InP PCSEL enabled by a bottom metal-capped DBR, peripheral DBRs, and a shifted triple-hole photonic crystal

中文摘要1.55 µm 的光子晶体面发射激光器（PCSELs）由于人眼安全性和低光纤损耗，对光通信和 LiDAR 应用极具吸引力。然而，其性能受到阈值增益与斜率效率之间权衡的限制，也受到传统分布式布拉格反射镜（DBR）结构的反射率和相位控制的限制。在这项工作中，据我们所知，我们提出了一种新型 InP 基 PCSEL 设计的理论和数值研究。具体而言，金属封盖 DBR 由三对 SiO 2 /TiO 2 层和一个 Au 层组成，在提供高反射率的同时显著降低制造复杂性。此外，引入围绕光子晶体（PC）区域的 DBR，以抑制面内损耗并增强激射模式的反馈。此外，移位三孔光子晶体能够灵活控制面内和垂直耦合强度，从而实现阈值增益与斜率效率之间的优化平衡。器件性能使用传输矩阵法和三维耦合波理论（3D-CWT）进行评估。结果表明，优化结构表现出 16cm −1 的低激射振荡阈值增益和相应的 76cm −1 阈值材料增益，同时具有 0.18 W/A 的高斜率效率，为工作在 1.55 µm 的高性能 InP 基 PCSELs 提供了一种有前景的理论设计策略。

英文摘要Photonic-crystal surface-emitting lasers (PCSELs) at 1.55 µm are highly attractive for optical communication and LiDAR applications owing to eye safety and low fiber loss. However, their performance is limited by the trade-off between threshold gain and slope efficiency, as well as by the reflectivity and phase control of conventional distributed Bragg reflector (DBR) structures. In this work, we present a theoretical and numerical investigation of a novel InP-based PCSEL design, to our knowledge. Specifically, the metal-capped DBR is composed of three pairs of SiO 2 /TiO 2 layers and an Au layer, providing high reflectivity while substantially reducing fabrication complexity. In addition, DBRs surrounding the photonic crystal (PC) region are introduced to suppress in-plane loss and enhance the feedback of the lasing mode. Furthermore, a shifted triple-hole photonic crystal enables flexible control of the in-plane and vertical coupling strengths, achieving an optimized balance between threshold gain and slope efficiency. The device performance is evaluated using the transfer-matrix method and three-dimensional coupled-wave theory (3D-CWT). As a result, the optimized structure exhibits a low threshold gain for lasing oscillation of 16cm −1 and a corresponding threshold material gain of 76cm −1 , together with a high slope efficiency of 0.18 W/A, providing a promising theoretical design strategy for high-performance InP-based PCSELs operating at 1.55 µm.

为什么与你有关
为什么与你有关：
- 主线关联：直接服务 PCSEL 方向，优先看结构参数、耦合机制、出光/远场和验证口径。
- 可用线索：CWT。
- 可转化内容：先判断能否变成一个仿真 case、baseline、验证指标或参数先验。

今日必看：优先判断是否进入 PCSEL / CWT / 仿真建模文献库。

OpenAlex · Optics Express · 2026-06-01 · Qingyuan Zhang, Ming Lyu, Jiang Hu, Qi Dai · 新论文 2026-06-13 · 相关度 25.9

英文原题Size scaling law for radiation losses of modes in photonic crystal surface emitting devices

中文摘要光子晶体面发射激光器（PCSELs）因其能够产生超高功率和低发散角的激光束而受到广泛关注。这是因为它们支持高功率单模激射，其体积比传统半导体激光器大数个数量级。PCSEL 中有限的横向尺寸是限制其激射模式体积并进而限制其输出功率的主要因素。我们证明，总腔损耗 α = α ⊥ + α ∥ 与器件尺寸 L 之间的缩放关系为：表面辐射损耗按 α ⊥ ∼ O ( L −2 ) 缩放，而边缘辐射损耗 α ∥ ∼ O ( L −3 ) 缩放。这两种缩放关系都可以由能带图中复频率 ω ( k ) 的二阶展开来解释。我们的结果为设计大面积类 PCSEL 器件时估算尺寸效应提供了指导。

英文摘要Photonic-crystal surface-emitting lasers (PCSELs) have garnered significant attention due to their ability to generate laser beams with ultra-high power and low divergence. This is because they support high-power single-mode lasing with volumes orders of magnitude larger than those of conventional semiconductor lasers. The finite lateral size in a PCSEL is a primary factor limiting its lasing mode volume and, consequently, its output power. We demonstrate that the scaling relation between the total cavity loss α = α ⊥ + α ∥ and the device size L is such that the surface radiation loss scales as α ⊥ ∼ O ( L −2 ), while the edge radiation loss α ∥ ∼ O ( L −3 ). Both scaling relations can be explained by the second-order expansions of the complex frequency ω ( k ) of the band diagram. Our results provide a guideline for estimating the size effect when designing large-area PCSEL-like devices.

为什么与你有关
为什么与你有关：
- 主线关联：直接服务 PCSEL 方向，优先看结构参数、耦合机制、出光/远场和验证口径。
- 可用线索：先看是否能抽出结构参数、指标定义或仿真设置。
- 可转化内容：适合沉淀成验证指标或参数先验，尤其是 mode volume。

今日必看：优先判断是否进入 PCSEL / CWT / 仿真建模文献库。

OpenAlex · 2024-01-01 · Chhabindra Gautam, Mingsen Pan, Yudong Chen, Thomas J. Rotter · 新论文 2026-06-09 · 相关度 40.5

英文原题Compact Coherent Photonic Crystal Surface-Emitting Laser Arrays

中文摘要我们报告了一种采用被动耦合 PCSEL 阵列的新颖相干光束合成设计。我们制备的 GaAs 基阵列的实验结果显示出高光束质量、线宽和相干性。

英文摘要We report a novel coherent beam combining design with passively coupled PCSEL array. Experimental results of our fabricated GaAs-based arrays show high beam quality, linewidth, and coherency.

为什么与你有关
为什么与你有关：
- 主线关联：直接服务 PCSEL 方向，优先看结构参数、耦合机制、出光/远场和验证口径。
- 可用线索：先看是否能抽出结构参数、指标定义或仿真设置。
- 可转化内容：先判断能否变成一个仿真 case、baseline、验证指标或参数先验。

今日必看：优先判断是否进入 PCSEL / CWT / 仿真建模文献库。

OpenAlex · 2025-05-30 · Mingsen Pan, Chhabindra Gautam, Yudong Chen, Ming Zhou · 新论文 2026-06-09 · 相关度 44.0

英文原题Power and brightness scaling in coherently coupled PCSEL arrays

中文摘要我们报告了一种新颖的相干光子晶体面发射激光器（PCSEL）阵列设计，通过在横向方向上被动耦合紧凑型光子晶体腔来实现。实验表征结果显示，我们在 InGaAs/GaAs 多量子阱（MQW）平台上制备的激光器阵列表现出高光束质量和相干性。

英文摘要We report a novel design of coherent photonic crystal surface-emitting laser (PCSEL) array by passively coupling compact photonic crystal cavities in the lateral directions. Experimental characterization results show high beam quality and coherency from our fabricated laser array on InGaAs/GaAs multiple quantum well (MQW) platform.

为什么与你有关
为什么与你有关：
- 主线关联：直接服务 PCSEL 方向，优先看结构参数、耦合机制、出光/远场和验证口径。
- 可用线索：先看是否能抽出结构参数、指标定义或仿真设置。
- 可转化内容：适合沉淀成验证指标或参数先验，尤其是 quantum well。

今日必看：优先判断是否进入 PCSEL / CWT / 仿真建模文献库。

OpenAlex · IEEE Journal of Selected Topics in Quantum Electronics · 2026-04-23 · Mihai Crisan, Shamsul Arafin · 新论文 2026-06-09 · 相关度 44.9

英文原题Inverse Design of Photonic Crystal Lasers Through Automatic Differentiation Optimization

中文摘要（嵌入式）PhC 谐振器激光器的行为与晶胞轮廓密不可分。因此，设计过程中的很大一部分不幸地依赖于对介电常数轮廓的审慎手动选择。这是不利的，因为这会丢弃关于目标函数（激光器的物理响应）的信息。我们通过采用基于梯度的流程来解决这一问题，该流程将计算设计任务分为两个步骤，即光子本征模式的二维本征值问题（建模）和计算图（梯度传播）：（i）通过仿真进行前向传递，以预测光子晶体面发射激光器（PCSEL）的行为（远场和模式品质因子），以及（ii）反向传播步骤，在该步骤中计算（用户）定义的代价函数的梯度，以更新晶胞设计。该方法的性能在远场和腔内场性能指标方面均超过了用于大规模 PCSELs 的当代晶胞设计。

英文摘要The behavior of (embedded) PhC resonator lasers is inextricably linked to the unit cell profile. Hence, an overwhelming fraction of the design process unfortunately relies on the judicious manual choice of the permittivity profile. This is disadvantageous for the fact that this throws away information regarding the objective function (the physical response of the laser). We remedy this by employing gradient-based protocols that split the computational design task into two steps—between a 2D eigenvalue problem for the photonic eigenmodes (modeling) and the computational graph (gradient-propagation): (i) a forward passage through the simulation to predict the photonic-crystal surface-emitting laser (PCSEL) behavior (far-field and mode quality factors), and (ii) a backpropagation step where the gradient of a (user) defined cost function is computed to update the unit cell design. The performance of this method exceeds contemporary unit cell designs for large-scale PCSELs in both far-field and intracavity field performance metrics.

为什么与你有关
为什么与你有关：
- 主线关联：直接服务 PCSEL 方向，优先看结构参数、耦合机制、出光/远场和验证口径。
- 可用线索：AI 代理模型/逆向设计。
- 可转化内容：适合沉淀成验证指标或参数先验，尤其是 far field。

今日必看：优先判断是否进入 PCSEL / CWT / 仿真建模文献库。

OpenAlex · 2024-09-29 · Mingsen Pan, Chhabindra Gautam, Yudong Chen, Thomas J. Rotter · 新论文 2026-06-09 · 相关度 44.0

英文原题High Brightness Coherent Photonic Crystal Surface-Emitting Laser Arrays

中文摘要我们报告了一种新颖的相干光子晶体面发射激光器（PCSEL）阵列设计，通过在横向方向上被动耦合紧凑型光子晶体腔来实现。实验表征结果显示，我们在 InGaAs/GaAs 多量子阱（MQW）平台上制备的激光器阵列表现出高光束质量和相干性。

英文摘要We report a novel design of coherent photonic crystal surface-emitting laser (PCSEL) array by passively coupling compact photonic crystal cavities in the lateral directions. Experimental characterization results show high beam quality and coherency from our fabricated laser array on InGaAs/GaAs multiple quantum well (MQW) platform.

为什么与你有关
为什么与你有关：
- 主线关联：直接服务 PCSEL 方向，优先看结构参数、耦合机制、出光/远场和验证口径。
- 可用线索：先看是否能抽出结构参数、指标定义或仿真设置。
- 可转化内容：适合沉淀成验证指标或参数先验，尤其是 quantum well。

今日必看：优先判断是否进入 PCSEL / CWT / 仿真建模文献库。

OpenAlex · 2026-06-05 · Yutong Di, Yi-Xiang Wang, Bojian Wang, Haoyu Chang · 新论文 2026-06-09 · 相关度 39.2

英文原题Design of high-slope-efficiency quantum dot photonic crystal surface-emitting lasers with metal reflector

中文摘要我们提出了一种利用金属反射镜的量子点光子晶体面发射激光器（QD-PCSEL）设计。通过调节 p 包层厚度、引入氧化物层，并使用 GaInP 作为 p 包层，QD-PCSEL 的斜率效率得到显著提升。使用三维有限差分时域方法研究了 p 包层厚度和光子晶体（PC）层对斜率效率的影响。仿真结果表明，在填充因子为 22%、PC 层厚度为 420 nm、p 包层厚度为 1.3 μm 时，所设计的 QD-PCSEL 实现了 267 mW/A 的斜率效率。与已报道的实验结果相比，这代表了约 20 倍的提升。

英文摘要We present the design of a quantum dot photonic crystal surface-emitting laser (QD-PCSEL) utilizing a metal reflector. By adjusting the p-cladding layer thickness, incorporating an oxide layer, and using GaInP as the p-cladding layer, the slope efficiency of the QD-PCSEL is greatly enhanced. The influence of the p-cladding layer thickness and the photonic crystal (PC) layer on the slope efficiency was investigated using the three-dimensional finite-difference time-domain method. Simulation results demonstrate that with a fill factor of 22%, a PC layer thickness of 420 nm, and a p-cladding layer thickness of 1.3 μm, the designed QD-PCSEL achieves a slope efficiency of 267 mW/A. This represents an approximately 20-fold improvement compared to reported experimental results.

为什么与你有关
为什么与你有关：
- 主线关联：直接服务 PCSEL 方向，优先看结构参数、耦合机制、出光/远场和验证口径。
- 可用线索：先看是否能抽出结构参数、指标定义或仿真设置。
- 可转化内容：先判断能否变成一个仿真 case、baseline、验证指标或参数先验。

今日必看：优先判断是否进入 PCSEL / CWT / 仿真建模文献库。

OpenAlex · 2026-05-28 · Alexander Cerjan · 新论文 2026-06-09 · 相关度 21.1

英文原题Steerable surface emitting laser design based on a line of bound states in the continuum

中文摘要传统光子晶体面发射激光器（PCSELs）依赖于孤立的准连续谱中束缚态（q-BIC），这些态通常位于布里渊区中心，并提供高方向性和高品质因子。然而，由于其所依赖的 q-BIC 具有孤立性质，PCSELs 在需要连续可调性的应用中受到根本限制，必须构建许多不同的 PCSELs 并对其进行开关切换以实现这种可调性。在这里，我们引入了一种新的腔几何结构，该结构使用一种新颖的偏振和角度选择性布拉格反射镜，来开发一种具有连续的连续谱中束缚态线的面发射激光器。由此产生的色散允许在较宽波矢范围内形成高 Q 激射态，并具有双光束发射的潜力，其角分离可通过调节量子阱增益介质的温度和注入电流来调谐。数值仿真证实，该构型产生高品质因子，并由于其降低的共振态密度而支持大面积单模运行。该方法不仅将实现连续的光束角度控制，还与现有制造方法兼容。我们的研究代表了克服基于孤立 q-BIC 器件限制的重要一步，并为集成光子学中的动态和可调光束转向开辟了新的可能性。致谢：SNL 由 NTESS 根据 DOE NNSA 合同 DE-NA0003525 管理和运营。

英文摘要Traditional photonic crystal surface-emitting lasers (PCSELs) rely on isolated quasi-bound states in the continuum (q-BIC) that are generally at the center of the Brillouin zone and which offer high directionality and quality factors. However, due to the isolated nature of the q-BICs they rely on, PCSELs are fundamentally limited in applications that demand continuous tunability, requiring the construction of many different PCSELs that are switched on and off to achieve such tunability. Here, we introduce a new cavity geometry that uses a novel polarization- and angle-selective Bragg reflector to develop a surface emitting laser that features a continuous line of bound states in the continuum. The resulting dispersion allows for high-Q lasing states across a broad wavevector range, with the potential for twin-beam emission whose angular separation can be tuned by adjusting the temperature and injection current into the quantum well gain medium. Numerical simulations confirm that this configuration yields a high-quality factor and supports single-mode operation over large areas due to its reduced density of resonances. The approach will not only enable continuous angular beam control but also offers compatibility with existing fabrication methods. Our study represents a significant step toward overcoming the limitations of isolated-q-BIC-based devices and opens new possibilities for dynamic and tunable beam-steering in integrated photonics. Acknowledgement: SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525.

为什么与你有关
为什么与你有关：
- 主线关联：更偏photonics / photonic crystal / Q factor，可作为 PCSEL 周边器件物理或数值方法补充。
- 可用线索：先看是否能抽出结构参数、指标定义或仿真设置。
- 可转化内容：适合沉淀成验证指标或参数先验，尤其是 quality factor / quantum well。

今日必看：优先判断是否进入 PCSEL / CWT / 仿真建模文献库。