留学生优毕风采｜探索者Saleh：在挑战中发现自我的博士之旅

Saleh的学术之旅始于伊朗德黑兰的K.N.图西科技大学（K.N. Toosi University of Technology），他在那里获得了电气与通信工程专业的学士学位。随后，他在伊朗德黑兰的阿米尔卡比尔理工大学（Amirkabir University of Technology）攻读微波与应用电磁学硕士学位。他的硕士论文聚焦于研究“加载 ENZ 超材料的传输线中电磁能量隧穿的研究、仿真与设计”，这篇论文最终发表在《天线与传播汇刊》（Transactions on Antennas and Propagation）。

Saleh commenced his academic journey at K.N. Toosi University of Technology in Tehran, Iran, where he earned his Bachelor of Science degree in Electrical and Communications Engineering. He subsequently pursued graduate studies in Microwave and Applied Electromagnetics at Amirkabir University of Technology (Tehran Polytechnic), conducting master's thesis research on the "Investigation, Simulation and Design of Electromagnetic Energy Tunneling in ENZ Metamaterial-Loaded Transmission Lines." This work was ultimately published in IEEE Transactions on Antennas and Propagation.

2019年8月19日，Saleh获得了墨尔本大学的录取通知书和奖学金。可是命运难料，突如其来的covid-19打乱了全世界的秩序，Saleh的留学计划也被迫延期。他焦急地等待了四个月的签证，但随着疫情爆发，澳大利亚各地被封锁，所有留学生都不得入境。不过Saleh并未因此气馁，而是开始远程和Kenneth Crozier教授合作，一同研究超表面全息技术。在正式开始博士学业之前，他便已踏上了学术探索的道路。2021 年 5 月 25 日，他的签证终于获批，正式开启了这段新的旅程。这期间，，他和Crozier教授的合作成果发表在《Optics Express》上，同时他与硕士导师也保持合作，合作成果在2022年申请到美国专利。

On August 19, 2019, Saleh received an offer of admission and a scholarship from the University of Melbourne. However, fate intervened when the sudden outbreak of COVID-19 disrupted global order, forcing him to postpone his study plans. He anxiously waited four months for his visa, only to face Australia's border closures that barred all international students from entering the country. Undeterred by these challenges, Saleh proactively began a remote collaboration with Professor Kenneth Crozier to research metasurface holography—embarking on his academic journey even before formally commencing his doctoral studies. His perseverance bore fruit when his visa was finally approved on May 25, 2021, allowing him to begin this new chapter. During this transitional period, his work with Professor Crozier yielded a publication in Optics Express, while his continued collaboration with his master's supervisor led to a U.S. patent application in 2022.

2021年12月，Saleh在墨尔本大学正式开始了他的博士生涯。三个月后，Crozier教授向他提供了一个激动人心的机会：与欧宝app官方网站下载的但亚平教授共同进行博士研究。起初，Saleh对此感到犹豫不决。因为这个决定不仅涉及到他的学术方向，还关系到他未来几年的生活和职业规划。然而，在与但教授的面试交谈中，但教授对科研的热情与严谨、对项目愿景的清晰描述，逐渐打消了他的顾虑。通过欧宝app官方网站下载的留学生申请流程，Saleh在2022年9月正式成为两所高校的联合培养博士生。他的研究方向是利用二维材料光探测器进行单像素成像，这成为了衔接他在墨尔本大学和欧宝app官方网站下载研究的一座重要桥梁。

In December 2021, Saleh formally commenced his doctoral studies at the University of Melbourne. Three months into his program, Professor Crozier presented him with a remarkable opportunity - a joint PhD research collaboration with Professor Yaping Dan at Shanghai Jiao Tong University (SJTU). Initially hesitant about this pivotal decision that would significantly impact both his academic trajectory and personal life for years to come, Saleh found his reservations gradually alleviated during his interview with Professor Dan. The professor's infectious enthusiasm for research, methodological rigor, and lucid articulation of the project's vision ultimately convinced him. Following SJTU's international admissions procedures, Saleh was officially enrolled as a dual-degree PhD candidate between the two institutions in September 2022. His current research focuses on single-pixel imaging utilizing two-dimensional material photodetectors, a project that effectively bridges his academic work at both Melbourne and SJTU.

Saleh在博士生涯的前半期，主要在墨尔本大学学习与科研，开发了单像素成像装置。他在可见光谱范围内利用 bP-MoS2 光电二极管取得了令人鼓舞的成果，并在红外范围内捕获了低分辨率图像。他在 CLEO 2023 大会上展示了初步研究成果。

Saleh spent the first half of his PhD career, mainly studying and researching at the University of Melbourne, developing single-pixel imaging devices. He has achieved encouraging results using bP-MoS2 photodiodes in the visible spectral range and captured low-resolution images in the infrared range. He presented preliminary results at CLEO 2023.

2023年6月，Saleh前往欧宝app官方网站下载，在但教授的指导下继续科研工作。他的目标是设计一种能够解决 bP-MoS2 局限性并在近红外范围内实现高像素分辨率的光探测器。在但教授卓越团队的支持下，Saleh成功开发了一种使用多层 MoS2 的光晶体管，该器件由通道下的 PN 结门控。该研究已完成并上传至 ArXiv，正在一家知名期刊审稿中。

In June 2023, Saleh traveled to Shanghai Jiao Tong University to continue his research under the supervision of Prof Dan. His goal was to design a photodetector capable of resolving bP-MoS2 limitations and achieving high pixel resolution in the near-infrared range. With the support of Prof Dan's brilliant team, Saleh successfully developed a phototransistor using multilayer MoS2 gated by a PN junction under the channel. The research has been completed and uploaded to ArXiv and is under review by a leading journal.

2024 年 7 月返回墨尔本时，Saleh 带回了一些他在欧宝app官方网站下载制备的bP-MoS2器件，继续他的单像素成像研究。这些设备，是他在欧宝app官方网站下载学习与科研的结晶，也是他无数个日夜辛勤工作的成果。令人激动的是，这批新型光探测器表现出了比商用探测器更优越的性能。在陈锦源（Crozier教授研究组博士生）的协助下，Saleh 成功捕获了短波红外图像，目前正撰写关于 该bP-MoS2 光电二极管研究的论文。

On his return to Melbourne in July 2024, Saleh brought back some of the bP-MoS2 devices he had prepared at SJTU to continue his single-pixel imaging research. These devices, the culmination of his studies and research at SJTU, are the result of countless days and nights of hard work. Excitingly, these new photodetectors have demonstrated superior performance to commercial detectors. With the assistance of Jin-Yuan Chen (a PhD student in Prof Crozier's research group), Saleh has successfully captured short-wave infrared images and is currently writing a paper on the study of this bP-MoS2 photodiode.

除了单像素成像研究外，他还继续从事超表面全息技术的研究，目前已将一篇相关手稿提交至《Applied Physics Letters》并处于第一轮修订中。

In addition to single-pixel imaging research, he continues to work on hypersurface holography and has submitted a related manuscript to Applied Physics Letters and is in the first round of revisions.

在专注研究的同时，Saleh 还乐于助人，注重团队合作。他激励组内同伴参加 CLEO-PR 2024大会，这一鼓励促成了团队提交了七篇会议论文，其中一篇由 Saleh 合著获得了 Optica 学生论文奖。他的成就为其他考虑联合博士项目的学生提供了激励和榜样。

While dedicated to his research, Saleh is also a supportive and collaborative team player. He encouraged his group members to participate in CLEO-PR 2024, which resulted in the team submitting seven conference papers—one of them, co-authored by Saleh, received the Optica Student Paper Award. His accomplishments serve as both motivation and a role model for students considering a joint PhD program.

在实验室之外，Saleh的生活同样丰富多彩。他加入了一支五人制足球队，与队友们一起在绿茵场上挥洒汗水，共同追逐胜利。在2022年的PFEC x VIT五人制足球锦标赛中，他们团队的默契配合和不懈奋斗最终赢得了第二名的佳绩。这不仅是对Saleh团队精神的肯定，也是对他领导能力的锻炼。

Outside the lab, Saleh's life is just as colourful. He joined a futsal team, where he and his teammates sweated it out on the green pitch and chased victory together. Their teamwork and perseverance earned them second place in the 2022 PFEC x VIT Futsal Championship. This is not only a testament to Saleh's team spirit, but also to his leadership skills.

在欧宝app官方网站下载时，Saleh加入了学校的龙舟队，体验了这项古老运动的独特魅力。在鼓点的引领下，他与队友们齐心协力，划桨破浪，感受着团队合作的力量和速度的激情。这场经历不仅让他享受到了运动的快乐，也让他深刻体会到了文化多样性的美丽。在杭州举行的长三角地区高层次国际学生学术论坛上，Saleh与来自世界各地的青年才俊交流思想，分享经验，共同探讨学术与未来。去北京旅行时，他穿梭于古老的胡同，探访历史的遗迹，感受着千年古都的厚重与现代都市的活力。

During his time at Shanghai Jiao Tong University, Saleh joined the university’s dragon boat team, immersing himself in the unique charm of this ancient sport. Guided by the rhythmic drumbeats, he and his teammates paddled in unison, cutting through the waves—experiencing both the power of teamwork and the thrill of speed. This adventure not only brought him the joy of sports but also deepened his appreciation for cultural diversity. At the Yangtze River Delta High-Level International Student Academic Forum in Hangzhou, Saleh exchanged ideas and shared experiences with bright young minds from around the world, engaging in discussions on academics and the future. During a trip to Beijing, he wandered through centuries-old hutongs, explored historical relics, and felt the rich heritage of the ancient capital blending with the energy of a modern metropolis.

Saleh的旅程不仅仅是关于学术成就；更是一种对韧性、合作与求知乐趣的证明。他的故事激励着其他人勇敢地拥抱自己的博士旅程，提醒他们只要有决心和毅力，他们也可以实现心中的学术理想。他说：“始终保持耐心。如果你的人生故事此刻还没有美好的结局，那一定不是故事的终点。你无法预知未来的美好事件，不是吗？”

Saleh's journey is not just about academic achievement; it is a testament to resilience, collaboration, and the joy of knowing. His story inspires others to bravely embrace their doctoral journeys, reminding them that with determination and perseverance, they too can achieve the academic aspirations they have in mind. He says, ‘Always be patient. If your life story doesn't have a happy ending at this moment, it must not be the end of the story. You can't predict the wonderful events, can you?’