2026-08-21

DataCite · arXiv · 2026-07-23 · Jinglin Yu, Feiyang Wu, Longying Wen, Chongxian Yuan · 新论文 2026-08-08 · 相关度 32.4

英文原题Reliability-Aware Bayesian Optimization of 1310 nm PCSELs with FDTD Verification

中文摘要近 1310 nm 光子晶体面发射激光器（PCSEL）是用于光通信和传感的颇具吸引力的窄光束光源，但其最终设计优化成本高昂。微小的几何结构变化会同时改变带边共振、腔体泄漏、远场发散角以及高 Q 衰减拟合的数值稳定性，而每次全波试验都需要进行时域仿真。我们将商用有限差分时域求解器与一个针对八个局部设计变量的可靠性感知贝叶斯优化（BO）循环相结合。每次仿真完成后，都会更新用于选择下一个几何结构的代理模型。候选结构排序将波长和光束质量要求与可靠性修正指标 $Q_{\mathrm{eff}}$ 相结合，该指标由求解器报告的相对拟合误差估计值 $dQ/Q$ 推导而来。在从同一参考模型出发的三次各含 80 次评估的运行中，BO 每次产生了 5—15 个通过联合筛选的候选结构。利用全新模型副本重建的设计保持了 $Q_{\mathrm{eff}}=4.33\times10^6$—$7.76\times10^6$，较基线指标提高 60—108 倍，其波长为 1308.23—1310.90 nm，发散角约为 $0.84^{\circ}$。在预算相同的情况下，BO 获得了最高的严格筛选平均产出量（9.0 个候选结构），相比之下，差分进化为 7.0 个，拉丁超立方采样为 1.5 个，不过对照方法偶尔也能达到峰值 $Q_{\mathrm{eff}}$。场分布图、共振光谱和局部扰动进一步确定了一个与折射率相关的波长调控手段，以及一个与孔尺寸相关的泄漏调控手段。由此形成的 FDTD 计算预算可获得一批波长兼容、光束窄且可重复实现的高 Q PCSEL 候选结构，而无须轻信单个过于乐观的衰减拟合结果。

英文摘要Near 1310 nm photonic-crystal surface-emitting lasers (PCSELs) are attractive narrow-beam sources for optical communication and sensing, but their final design refinement is costly. Small geometry changes simultaneously shift the band-edge resonance, cavity leakage, far-field divergence, and the numerical stability of a high-$Q$ decay fit, while every full-wave trial requires a time-domain simulation. We couple a commercial finite-difference time-domain solver to a reliability-aware Bayesian optimization (BO) loop over eight local design variables. Each completed simulation updates the surrogate used to choose the next geometry. Candidate ranking combines wavelength and beam-quality requirements with a reliability-adjusted metric $Q_{\mathrm{eff}}$ derived from the solver-reported relative fit-error estimate $dQ/Q$. Across three 80-evaluation runs from the same reference model, BO produced 5--15 candidates per run that passed the joint filter. Designs reconstructed from fresh model copies retained $Q_{\mathrm{eff}}=4.33\times10^6$--$7.76\times10^6$, a 60--108-fold increase over the baseline metric, at 1308.23--1310.90~nm with approximately $0.84^{\circ}$ divergence. Under equal budgets, BO gave the highest mean strict-filter yield (9.0 candidates), compared with differential evolution (7.0) and Latin-hypercube sampling (1.5), although the controls occasionally matched the peak $Q_{\mathrm{eff}}$. Field maps, resonance spectra, and local perturbations further identify an index-related wavelength handle and a hole-size-related leakage handle. The resulting FDTD budget produces a pool of wavelength-compatible, narrow-beam, and reproducible high-$Q$ PCSEL candidates without trusting a single optimistic decay fit.

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- 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：FDTD / 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。

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Semantic Scholar · Laser & Photonics Reviews · 2026-07-23 · Tong Xu, Meixin Feng, Rui Xi, Xiaoqi Yu · 新论文 2026-07-26 · 相关度 35.6

英文原题3.2 W GaN‐Based Photonic‐Crystal Surface‐Emitting Laser

中文摘要光子晶体面发射激光器（PCSEL）凭借其单模运行和窄光束发散的独特能力，已成为用于 LiDAR、自由空间通信和材料加工等高功率、高亮度应用的潜力光源。然而，将 PCSEL 扩展至蓝光波段仍面临挑战，主要原因是 GaN 基材料的折射率较低且波长较短，这会削弱光反馈，并增加制造难度和光散射损耗，从而导致极高的激光阈值。在本工作中，我们展示了在 430.5 nm 工作的无再生长瓦级 GaN 基 PCSEL，该器件采用优化的外延结构和光子晶体设计，在 GaN 衬底上制备。该器件实现了 4 kA/cm² 的阈值电流密度，并在室温下获得 3.2 W 的峰值输出功率，据我们所知，这是目前报道的最高输出功率。本工作为采用简化制造工艺实现高功率可见光 PCSEL 提供了一条可行路径，在未来的高亮度照明和显示应用中具有巨大潜力。

英文摘要Photonic‐crystal surface‐emitting lasers (PCSELs) have emerged as promising light sources for high‐power, high‐brightness applications such as LiDAR, free‐space communication, and material processing, owing to their unique capabilities for single‐mode operation and narrow beam divergence. However, extending PCSELs into the blue wavelength regime remains challenging, primarily due to the low refractive index and short wavelength of GaN‐based materials, which weakens optical feedback and increases the fabrication difficulty and optical scattering loss, resulting in very high lasing thresholds. In this work, we demonstrate regrowth‐free, watt‐class GaN‐based PCSELs operating at 430.5 nm, fabricated on GaN substrates using an optimized epitaxial structure and photonic crystal design. The device achieved a threshold current density of 4 kA/cm 2 , and a peak output power of 3.2 W at room temperature, which, to our knowledge, is the highest output power reported. This work provides a viable pathway toward high‐power visible PCSELs with simplified fabrication processes, offering significant potential for high‐brightness lighting and display applications in the future.

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- 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。

Crossref · Photonics · 2026-07-11 · Jianxin Zhang, Gaoben Shi, Xiaoyun Liu, Haizhu Sun · 新论文 2026-08-08 · 相关度 15.1

英文原题A 1064 nm Deep-Etched Wide-Ridge Waveguide Slab-Coupled Photonic Crystal Semiconductor Laser

中文摘要半导体激光器是光通信、光存储及其他领域的关键器件。实现单模、高功率和高光束质量输出是激光技术的重要研究目标。传统板耦合光波导激光器能够有效抑制高阶模式，但存在光限制因子低和脊宽受限的问题。本文提出一种 1064 nm 深刻蚀宽脊波导板耦合光子晶体半导体激光器。在传统板耦合光波导中引入光子晶体结构。通过数值仿真分析其光场和模式特性，验证了该结构在提高光限制因子以及利用深刻蚀宽脊波导实现单模运行方面的可行性。与传统光子晶体激光器不同，该设计为高性能光子晶体半导体激光器的设计提供了一条新路径。

英文摘要Semiconductor lasers are key devices in optical communication, optical storage and other fields. Achieving single-mode, high-power and high-beam-quality output is an important research goal in laser technology. Conventional slab-coupled optical waveguide lasers can effectively suppress higher-order modes, but suffer from a low optical confinement factor and limited ridge width. This paper proposes a 1064 nm deep-etched wide-ridge waveguide slab-coupled photonic crystal semiconductor laser. A photonic crystal structure is introduced into the conventional slab-coupled optical waveguide. The optical field and mode characteristics are analyzed by numerical simulation, verifying the feasibility of the structure in improving the optical confinement factor and realizing single-mode operation with a deep-etched wide-ridge waveguide. Different from traditional photonic crystal lasers, this design provides a new route for high-performance photonic crystal semiconductor laser design.

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- 主线关联：更偏photonics / photonic crystal，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：先判断能否变成一个仿真 case、baseline、验证指标或参数先验。

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Crossref · Applied Physics Letters · 2026-07-07 · Erin M. Raftery, Devon O. Lee, Daniel W. Pflug, Adrian Birge · 新论文 2026-07-09 · 相关度 35.0

英文原题Buried dielectric quasi-photonic-crystal surface-emitting lasers

中文摘要我们报道了一种准光子晶体面发射激光器（QPCSEL），其采用被高折射率外延半导体包围的亚微米低折射率埋入式介质结构来形成准光子晶体层。我们展示了埋入式介质 QPCSEL 在室温下的光泵浦激光发射，其发射波长为 1.5 μm。QPCSEL 使用准周期光子晶体取代传统的周期性折射率图案，从而产生单模发射。我们的埋入式介质方法能够实现光子晶体的固态集成，同时在外延半导体再生长过程中保留复杂的图案化几何结构。

英文摘要We report a quasi-photonic-crystal surface-emitting laser (QPCSEL) that employs sub-micron, low-index buried dielectric features surrounded by high-index epitaxial semiconductor to form the quasi-photonic-crystal layer. We demonstrate photopumped lasing from a buried dielectric QPCSEL at room temperature with emission wavelength at 1.5 μm. QPCSELs replace the conventional periodic refractive index pattern with a quasi-periodic photonic crystal, which produces single mode emission. Our buried dielectric approach enables solid-state integration of the photonic crystal while preserving the complex patterned geometry during epitaxial semiconductor regrowth.

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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。

DataCite · arXiv · 2026-06-22 · Cen Chen, Haitao Huang, Jiazhi Mao, Feifan Xu · 新论文 2026-08-08 · 相关度 31.1

英文原题DDSNet: Dual-domain Symmetry-aware Network for PCSEL Property Prediction

中文摘要高效探索光子晶体（PhC）晶格设计空间对于开发光子晶体面发射激光器至关重要。尽管耦合波理论（CWT）提供了有效的物理框架，但其计算成本对于大规模探索而言仍然过高，因而推动了对神经网络代理模型的需求。然而，现有 AI 模型未能充分利用 CWT 所揭示的 PhC 单胞介电图案的两个关键因素：频谱分量和非对称结构，而这两者在很大程度上决定了器件的物理特性。这种不匹配削弱了代理模型的准确性和筛选可靠性，在结构敏感区域尤为明显。为解决这一问题，我们提出双域对称性感知网络（DDSNet）。该网络将平移等变频谱滤波与对称性诱导的结构先验相结合。频谱滤波在保持晶格上平移等变性的同时，将频谱归纳偏置注入视觉模型。与此同时，结构先验将晶格特征分解为与不可约表示相关的对称性分辨分量，并在不同分支中分别处理这些分量。实验表明，DDSNet 在特性预测和高通量筛选方面显著优于现有 AI 基线模型，并在结构敏感区域表现出更高的可靠性。关键的是，分量掩蔽分析表明，该网络成功学习了与物理先验一致的特性特异性依赖关系。这些结果表明，DDSNet 能够有效捕捉具有物理意义的结构—特性关系，从而为 PhC 设计空间探索建立了一个高度可靠的神经网络代理模型。

英文摘要Efficient exploration of the photonic crystal (PhC) lattice design space is essential for developing photonic crystal surface-emitting lasers. While coupled-wave theory (CWT) provides an effective physical framework, its computational cost remains prohibitive for large-scale exploration, driving the demand for neural surrogates. However, existing AI models underexploit two key factors of PhC unit-cell dielectric patterns indicated by CWT: spectral components and asymmetric structures, which largely govern devices' physical properties. This mismatch weakens surrogate accuracy and screening reliability, especially in structure-sensitive regions. To address this, we propose the Dual-Domain Symmetry-Aware Network (DDSNet). It integrates translation-equivariant spectral filtering with a symmetry-induced structural prior. The spectral filtering injects a spectral inductive bias into vision model while preserving translation equivariance on lattices. Meanwhile, the structural prior decomposes lattice features into irreducible representation-associated, symmetry-resolved components and processes them in separate branches. Experiments demonstrate that DDSNet significantly outperforms existing AI baselines in property prediction and high-throughput screening, exhibiting superior reliability in structure-sensitive regions. Crucially, component masking analyses reveal that the network successfully learns property-specific dependencies aligned with physical priors. These results indicate that DDSNet effectively captures physically meaningful structure-property relationships, establishing a highly reliable neural surrogate for PhC design space exploration.

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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。

Semantic Scholar · Applied Physics Letters · 2026-06-15 · Zhiwei Sun, Bolin Zhou, Yuzhen Zheng, Yongchen Miao · 新论文 2026-06-19 · 相关度 42.6

英文原题Regrowth-free blue GaN-based photonic crystal surface-emitting lasers with triangular air holes

中文摘要我们报道了采用无再生长方法成功实现的室温蓝光 GaN 光子晶体面发射激光器（PCSEL）二极管。通过采用具有改进三角形空气孔的方形晶格光子晶体结构，我们实现了稳健的二维单模激光发射。该器件的阈值电流密度为 5.2 kA/cm²，并发射高斯形光束，其光束发散角极低，测得为 1.15 mrad（0.066°）。此外，三角形空气孔的对称性破缺特性使器件形成稳定的线偏振，其偏振方向垂直于三角形的长边。本工作表明，采用具有简单孔形的无再生长制造工艺可以实现高光束质量的蓝光 PCSEL，为高性能蓝光激光光源铺平了道路。

英文摘要We report the successful realization of a room-temperature blue GaN photonic crystal surface-emitting laser (PCSEL) diode fabricated using a regrowth-free approach. By employing a square lattice photonic crystal structure with modified triangular air holes, we achieve robust two-dimensional single-mode lasing. The device operates with a threshold current density of 5.2 kA/cm2 and emits a Gaussian-shaped beam with exceptionally low beam divergence, measured at 1.15 mrad (0.066°). Furthermore, the symmetry-breaking nature of the triangular air holes enforces a stable linear polarization perpendicular to the long edge of the triangle. This work demonstrates that high-beam-quality blue PCSELs can be achieved using non-regrowth fabrication processes with simple hole geometry, paving the way for high-performance blue laser sources.

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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。

OpenAIRE · Applied Optics · 2026-06-11 · Siyu Chen, Jingwei Chen, Xingyu Liu, Zhiyuan Jiang · 新论文 2026-06-15 · 相关度 32.5

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 光子晶体面发射激光器（PCSEL）因具有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，同时也受传统分布式布拉格反射镜（DBR）结构的反射率和相位控制能力限制。在本工作中，据我们所知，我们对一种新型 InP 基 PCSEL 设计进行了理论和数值研究。具体而言，金属封盖 DBR 由三对 SiO₂/TiO₂ 层和一个 Au 层组成，可在提供高反射率的同时显著降低制造复杂度。此外，在光子晶体（PC）区域周围引入 DBR，以抑制面内损耗并增强激光模式的反馈。此外，偏移三孔光子晶体能够灵活控制面内和垂直耦合强度，从而在阈值增益与斜率效率之间实现优化平衡。我们采用传输矩阵法和三维耦合波理论（3D-CWT）评估器件性能。结果表明，优化结构的激光振荡阈值增益低至 16 cm⁻¹，相应的阈值材料增益为 76 cm⁻¹，同时具有 0.18 W/A 的高斜率效率，为工作于 1.55 µm 的高性能 InP 基 PCSEL 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。

Semantic Scholar · International Conference Laser Optics · 2026-06-01 · I. Oreshko, V. Zolotarev, S. Slipchenko, A.S. Nekrasov · 新论文 2026-08-09 · 相关度 20.3

英文原题Surface-emitting semiconductor IR laser with resonator based on 2D photonic crystal

中文摘要计算了基于具有方形对称性的二维光子晶体的激光谐振腔输出损耗，该光子晶体由蚀刻在基于 AlGaAs/GaAs/InGaAs 异质结构的波导顶部包层中的不同几何形状的孔构成。计算表明，具有 C2 旋转对称性的孔具有低辐射效率的高 Q 模式。另一方面，不具有 C2 对称性的梯形孔在低阈值模式之间表现出最大的模式区分度。

英文摘要The output losses of laser resonator based on 2D photonic crystal with square symmetry, which is formed by holes with varying geometries etched into the top cladding of the waveguide based on AlGaAs/GaAs/InGaAs heterostructure, were calculated. Calculations show that holes with C2 rotational symmetry are characterized by the presence of high-Q modes with low radiative efficiency. On the other hand, trapezoidal holes, which do not possess C2 symmetry, demonstrate the greatest mode discrimination between low-threshold modes.

为什么与你有关
为什么与你有关：
- 主线关联：更偏photonics / photonic crystal / III-V，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：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。

OpenAIRE · Journal of Semiconductors · 2026-05-01 · Yuzhen Zheng, Zhiwei Sun, Tong Xu, Bolin Zhou · 新论文 2026-06-09 · 相关度 26.8

英文原题Low-threshold GaN surface emitting lasers: A comparative study of circular grating and photonic crystal designs

中文摘要摘要：我们展示了两种无需外延再生长制备的 GaN 基面发射激光器（SEL）在室温下的脉冲激光发射。我们对圆形光栅设计（CGSEL）与光子晶体设计（PCSEL）进行了直接比较。这些器件通过将光子结构直接蚀刻到 p-GaN 包层中，并采用图案化氧化铟锡（ITO）顶部接触来实现。两种设计在脉冲电流注入下均在 438 nm 附近产生激光。包含中心缺陷的 CGSEL 通过耦合至带隙缺陷模式，实现了低阈值电流密度（<1 kA/cm²）和小发散角（≈0.15°）。相比之下，PCSEL 的阈值电流密度更高，并在一维带边模式上产生激光，形成十字形远场图案。这些结果证实，无再生长方法是实现可制造 GaN SEL 的一条可行路径。尤为重要的是，这项比较研究确定，CGSEL 缺陷模式设计是在低限制外延结构中实现高性能激光发射的一条更稳健路径。

英文摘要Abstract We demonstrate room-temperature pulsed lasing of two types of GaN-based surface emitting lasers (SEL) fabricated without epitaxial regrowth. We present a direct comparison between a circular grating (CGSEL) and a photonic crystal (PCSEL) design. The devices are realized by etching the photonic structures directly into the p-GaN cladding, and utilizing a patterned indium tin oxide (ITO) top contact. Both designs exhibit lasing near 438 nm under pulsed current injection. The CGSEL, incorporating a central defect, achieves a low threshold current density (<1 kA/cm 2 ) and a small divergence angle (≈0.15°) by coupling to a bandgap defect mode. In contrast, the PCSEL shows a higher threshold current density and lases on a 1D band-edge mode, resulting in a cross-shaped far-field pattern. These results confirm the regrowth-free method as a viable route for manufacturable GaN SELs. Crucially, the comparative study identifies the CGSEL defect-mode design as a more robust path toward high-performance lasing in low-confinement epitaxial structures.

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Semantic Scholar · IEEE Photonics Journal · 2026-04-01 · B. Temu, Tomas Peach, Tyrone Jones, Shangfeng Liu · 新论文 2026-08-21 · 相关度 24.0

英文原题Low Threshold Single Mode Lasing from Suspended Membrane Photonic Crystal Surface Emitting Lasers

中文摘要为了降低激光器件的功耗，光子集成电路及许多其他应用都希望获得较低的激光阈值。利用两个晶格之间相长干涉的双晶格光子晶体面发射激光器，与单晶格器件相比可实现更低的激光阈值。在此，我们展示了双晶格器件的单模激光发射，并将其与对应的单晶格器件进行了比较。该器件由 InP 衬底上的悬空 InP 光子晶体层薄膜构成。对四个单晶格器件和四个双晶格器件测得的平均激光阈值分别约为 43 μJ/cm² 和 20 μJ/cm²。本工作为成功实现用于不同应用的低阈值单模 PCSEL 铺平了道路。

英文摘要Low lasing threshold is desirable in photonic integrated circuits and many other applications in order to reduce the power consumption of the lasing device. Double lattice photonic crystal surface emitting laser utilizing constructive interference between the two lattices can be used to realize lower lasing threshold compared to single lattice devices. Here we demonstrate single mode lasing of a double lattice device and compare to its single lattice counterpart. The device is made of a suspended membrane of InP photonic crystal layer on InP substrate. The average lasing threshold values measured for four single and four double lattice devices were about 43 μJ/cm2 and 20 μJ/cm2 respectively. This work paves the way to successful realization of low threshold single mode PCSELs for different applications.

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Semantic Scholar · IEEE Transactions on Nuclear Science · 2026-04-01 · S. Kimura, R. Morita, T. Inoue, Y. Hashimoto · 新论文 2026-08-09 · 相关度 25.3

英文原题Radiation Tolerance of Photonic-Crystal Surface-Emitting Lasers for Space Applications

中文摘要光子晶体面发射激光器（PCSEL）是能够同时实现高输出功率和单模运行的半导体激光器。由于 PCSEL 能够以较低的尺寸、重量和功耗产生光，因此其在包括天基系统在内的众多应用中颇具吸引力。然而，PCSEL 的抗辐射能力尚未得到研究，因此尚不清楚其能否承受空间辐射环境。具体而言，辐射对光子晶体层波长尺度结构的影响，以及其抗辐射能力对 PCSEL 固有三维激光发射机制的依赖关系，均尚未得到研究。在本工作中，我们以总剂量效应为重点，评估了 PCSEL 的抗辐射能力。当受到 21 MeV 和 98 MeV 质子辐照时，PCSEL 的阈值电流升高。尽管阈值电流的增幅略大于传统激光二极管的报道值，但光子晶体层的功能得以保留。由 ⁶⁰Co 辐照产生的伽马射线导致 PCSEL 的电阻略有增加。基于实验结果的计算表明，在预期空间环境中，PCSEL 特性的退化程度足够小。

英文摘要Photonic-crystal surface-emitting lasers (PCSELs) are semiconductor lasers capable of simultaneously achieving high output power and single-mode operation. Because PCSELs can generate light with low size, weight, and power, they are attractive for use in numerous applications, including space-based systems. However, the radiation hardness of PCSELs has not been investigated, so it is unclear whether they can withstand the space radiation environment. Specifically, the impact of radiation on the wavelength-scale structure of a photonic-crystal layer and the dependence of its radiation tolerance on the 3-D lasing mechanism inherent to PCSELs have not been studied. In the present work, we evaluated the radiation tolerance of a PCSEL, focusing on total dose effects. When irradiated with 21 and 98 MeV protons, the current threshold of the PCSEL increased. Although the increase in the threshold current was slightly larger than that reported for conventional laser diodes, the functionality of the photonic-crystal layer was preserved. Gamma rays emitted from 60Co irradiation caused a slight increase in the resistance of the PCSEL. Calculations based on the experimental results indicated that the degradation of PCSEL characteristics in the expected space environment is sufficiently small.

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Semantic Scholar · Optical Fiber Communications Conference and Exhibition · 2026-03-15 · Yun-Han Chang, Wenhu Miao, Fu-He Hsiao, Yuan-Zeng Lin · 新论文 2026-06-03 · 相关度 41.6

英文原题Monolithic Integration of Metasurface with Photonic-Crystal Surface-Emitting Laser (PCSEL) for Beam Manipulation in Free Space Optical Communication

中文摘要我们制备了与光子晶体面发射激光器（PCSEL）单片集成的超表面。该超表面被设计为在特定衍射角产生左旋和右旋圆偏振光。实验结果表明，每个偏振通道实现了 1.88 Gbit/s 的自由空间传输。

英文摘要A monolithically integrated metasurface with photonic-crystal-surface-emitting-laser (PCSEL) was fabricated. The metasurface was designed to generate left- and right-handed-circular-polarizations at specific diffraction angles. Experimental results show that 1.88-Gbit/s per polarization channel free-space transmission is achieved.

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Semantic Scholar · Quantum West · 2026-03-05 · P. Androvitsaneas, James McDougall, R. J. Taylor, Christopher Jones · 新论文 2026-08-21 · 相关度 22.6

英文原题The use of additive and subtractive manufacturing on photonic crystal surface emitting laser to encode orbital angular momentum states for quantum communications

中文摘要我们展示了在光子晶体面发射激光器（PCSEL）顶部采用增材和减材制造方法集成螺旋相位板（SPP），以产生用于基于 qudit 的量子通信的轨道角动量（OAM）。我们发现，增材和减材技术均能使我们制造出分辨率高于现有光刻技术的 SPP，从而为面向卫星通信、用于更高维希尔伯特空间的 OAM 集成光源铺平道路。

英文摘要We demonstrate both additive and subtractive manufacture of integrated spiral phase plases (SPPs) on top of photonic crystal surface emitting lasers (PCSELs) for the generation of orbital angular momentum(OAM) for quantum communication using qudits. We find that both additive and subtractive techniques allow us to create SPPs with higher resolution than existing lithography based techniques, paving the way for integrated sources of OAM in higher dimensional Hilbert spaces for satellite based communications.

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Crossref · Gallium Nitride Materials and Devices XXI · 2026-03-05 · Åsa Haglund, Doğukan Apaydın, Lars Persson, Moritz Riedel · 新论文 2026-08-09 · 相关度 15.0

英文原题Deep-ultraviolet photonic crystal surface-emitting lasers

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Semantic Scholar · LASE · 2026-03-04 · P. Androvitsaneas, Zhongze Ren, P. Ivanov, Anna O'Dowd · 新论文 2026-08-09 · 相关度 23.4

英文原题Photonic crystal surface emitting laser bandstructure investigation using Fourier microscopy

中文摘要光子晶体面发射激光器（PCSEL）开启了高功率单模半导体激光发射的新阶段。与大规模生产的半导体激光器主力器件——垂直腔面发射激光器（VCSEL）——不同，PCSEL 为产生单模输出，并不局限于较小的尺寸和输出功率。在本工作中，我们使用傅里叶显微镜提取 PCSEL 光子能带结构的详细轮廓。本工作加深了我们对这些新型激光结构的理解，并将推动形成利用 PCSEL 精确光子工程的新型设计原则。我们进行了详细的白光反射率测量，并在傅里叶显微镜中将其结果与同一器件电致发光所反映的光学特性进行了比较。

英文摘要Photonic crystal surface emitting lasers (PCSELs) have brought the onset of high-power single mode semiconductor lasing. In contrast to vertical cavity surface emitting lasers (VCSELs), the workhorse of mass-produced semiconductor lasers, PCSELS are not restricted in small sizes and output powers in order to produce a single mode output. In this work, we are using Fourier microscopy to extract a detailed outline of the PCSELs photonic band structure. This work furthers our understanding of these novel laser structures and will lead to novel design principles for utilizing precise photonic engineering of PCSELs. We perform detailed white light reflectivity and compare the results to the optical properties from electroluminescence of the same devices in a Fourier microscope.

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