Topological Cavity Chains via Shifted Photonic Crystal Interfaces by Wei Li, Junhui Hu, Hai-Xiao Wang

“…Our work holds promises for designing robust photonic devices, which may find potential applications in future integrated photonics.…”
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A Compact and Fast Resonant Cavity-Based Encoder in Photonic Crystal Platform by Mohammad Soroosh, Faris K. AL-Shammri, Mohammad Javad Maleki, Venkatachalam Rajarajan Balaji, Ehsan Adibnia

“…The proposed design, with a footprint of 114 µm², demonstrates efficient encoding operation at a wavelength of 1550 nm and is highly suitable for integrated photonics applications. A comprehensive comparative analysis revealed that the proposed 4-to-2 encoder exhibits a time response 176 fs faster than previously presented encoders. …”
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Compact inverse designed vertical coupler with bottom reflector for sub-decibel fiber-to-chip coupling on silicon on insulator platform by Shiang-Yu Huang, Stefanie Barz

“…Abstract Inverse design via topology optimization has led to innovations in integrated photonics and offers a promising way for designing high-efficiency on-chip couplers with a minimal footprint. …”
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High-Dimensional Quantum Key Distribution by a Spin-Orbit Microlaser by Yichi Zhang, Haoqi Zhao, Tianwei Wu, Zihe Gao, Li Ge, Liang Feng

“…Practical qudit platforms require robust propagation, outstanding controllability, and extreme compactness, to which integrated photonics provides a promising solution. Here, we achieved, for the first time, microlaser-enabled high-dimensional quantum communication through leveraging spin-orbit photon qudits, where the dynamical generation and manipulation of these multi-degrees-of-freedom complex quantum state are realized by a non-Hermitian-physics-driven integrated microlaser quantum transmitter. …”
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Design of a release-free piezo-optomechanical quantum transducer by Paul Burger, Joey Frey, Johan Kolvik, David Hambraeus, Raphaël Van Laer

“…Beyond quantum science and engineering, this platform and its design principles could also propel low-power acousto-optic systems in integrated photonics.…”
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A wide-spectrum mid-infrared electro-optic intensity modulator employing a two-point coupled lithium niobate racetrack resonator by Hyeon Hwang, Kiyoung Ko, Mohamad Reza Nurrahman, Kiwon Moon, Jung Jin Ju, Sang-Wook Han, Hojoong Jung, Min-Kyo Seo, Hansuek Lee

“…Optical intensity modulators (OIMs) are essential for mid-infrared (mid-IR) photonics, enabling applications such as bond-selective molecular sensing, and free-space communications via atmospheric windows. Integrated photonics offers a compact and cost-effective solution, yet on-chip mid-IR OIMs significantly underperform compared to their near-IR counterparts. …”
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Metacavities by harnessing the linear-crossing metamaterials by Wu Jiaju, Guo Zhiwei, Qi Xin, Wei Qian, He Li, Fang Kai, Sun Yong, Li Yunhui, Chen Yuguang, Jiang Haitao, Chen Hong

“…Our work offers a new avenue for designing optical resonators excited by the point source in integrated photonics, which is very useful for high-efficiency filters, ultrasensitive sensors, and enhancement of light–matter interactions.…”
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Optomechanical Gyroscope Based on Micro-Hemispherical Shell and Optical Ring Resonators by Jamal N. A. Hassan, Wenyi Huang, Maoyuan Wang, Senyu Zhang, Guangjun Wen, Yongjun Huang

“…Overall, the gyroscope design utilizes principles of both mechanical resonators and integrated photonics to address challenges in on-chip light coupling and angular velocity detection for next-generation optomechanical inertial sensors. …”
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Extraction of individual Pockels coefficients of thin films via interferometric reflection measurements by Kobe De Geest, Enes Lievens, Ewout Picavet, Klaartje De Buysser, Dries Van Thourhout, Jeroen Beeckman

“…Characterization methods of the EO properties of thin films are often only able to extract an effective EO response, while in many integrated photonic circuits it is one of the Pockels coefficients that determines the strength of the modulation. …”
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Wafer-scale integration of freestanding photonic devices with color centers in silicon carbide by Sridhar Majety, Victoria A. Norman, Pranta Saha, Alex H. Rubin, Scott Dhuey, Marina Radulaski

“…However, large-scale deployment of this technology has been stifled by a lack of ability to integrate photonic devices at scale while maintaining the properties of quantum emitters. …”
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Photorefractive and pyroelectric photonic memory and long-term stability in thin-film lithium niobate microresonators by Xinyi Ren, Chun-Ho Lee, Kaiwen Xue, Shaoyuan Ou, Yue Yu, Zaijun Chen, Mengjie Yu

“…Abstract The stability of integrated photonic circuits is crucial for applications requiring high frequency precision or robust operation over time, such as optomechanical sensing, frequency conversion, optical communication, and quantum optics. …”
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Progress in mid-infrared optoelectronics for high-speed free-space data throughput by Frédéric Grillot, Thomas Poletti, Salvatore Pes

“…This Perspective reviews advances in mid-infrared optoelectronics and their applications in high-speed data transmission and integrated photonic technologies, offering insights for researchers and engineers working in this field.…”
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Detection of the Extended γ-Ray Emission around TeV Source 1LHAASO J0249+6022 with Fermi-LAT by Yunlu Gong, Liancheng Zhou, Qi Xia, Shan Chang, Jun Fang, Li Zhang

“…The results show that its γ -ray spectrum can be well fitted by a single power law with an index of 1.54 ± 0.17, and integral photon flux is (4.28 ± 1.03)  × 10 ^−11 photons cm ^−2 s ^−1 . …”
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Bottom-up fabrication of 2D Rydberg exciton arrays in cuprous oxide by Kinjol Barua, Samuel Peana, Arya Deepak Keni, Vahagn Mkhitaryan, Vladimir M. Shalaev, Yong P. Chen, Alexandra Boltasseva, Hadiseh Alaeian

“…These results lay the groundwork for the deterministic growth of Cu2O around photonic structures, enabling substantial light-matter interaction on integrated photonic platforms and paving the way for scalable, on-chip quantum devices.…”
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VO2 based polarization-independent dual-wavelength plasmonic switches using U and C shaped nanostructures by Kirti Dalal, Yashna Sharma

“…These switches can be employed in telecommunication networks, optical communications, and integrated photonic circuits.…”
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Absorption loss and Kerr nonlinearity in barium titanate waveguides by Annina Riedhauser, Charles Möhl, Johannes Schading, Daniele Caimi, David I. Indolese, Thomas M. Karg, Paul Seidler

“…Material absorption sets a lower limit to optical loss and is thus a crucial property to determine, particularly for integrated photonic devices. Using cavity-enhanced photothermal spectroscopy, we measure the absorption loss of BaTiO3 ridge waveguides at wavelengths near 1550 nm to be αabs = 10.9−0.4+5.8 dB m−1, well below the propagation losses due to other sources, such as scattering. …”
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Quantum key distribution implemented with d-level time-bin entangled photons by Hao Yu, Stefania Sciara, Mario Chemnitz, Nicola Montaut, Benjamin Crockett, Bennet Fischer, Robin Helsten, Benjamin Wetzel, Thorsten A. Goebel, Ria G. Krämer, Brent E. Little, Sai T. Chu, Stefan Nolte, Zhiming Wang, José Azaña, William J. Munro, David J. Moss, Roberto Morandotti

“…Here, we demonstrate a fiber-pigtailed, integrated photonic platform enabling the generation and processing of picosecond-spaced time-bin entangled qudits in the telecommunication C band via an on-chip interferometry system. …”
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Electromagnetic Wavefront Engineering by Switchable and Multifunctional Kirigami Metasurfaces by Yingying Wang, Yang Shi, Liangwei Li, Zhiyan Zhu, Muhan Liu, Xiangyu Jin, Haodong Li, Guobang Jiang, Jizhai Cui, Shaojie Ma, Qiong He, Lei Zhou, Shulin Sun

“…Developing switchable and multifunctional metasurfaces is essential for high-integration photonics. However, most previous studies encountered challenges such as limited degrees of freedom, simple tuning of predefined functionality, and complicated control systems. …”
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An Efficient Frequency Encoding Scheme for Optical Convolution Accelerator by Gongyu Xia, Jiacheng Liu, Qilin Hong, Pingyu Zhu, Ping Xu, Zhihong Zhu

“…With its high parallelism and the maturation of integrated photonic technologies, optical computing is expected to further support the computational resources required by large models. …”
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Unravelling the nonlinear generation of designer vortices with dielectric metasurfaces by Laure Coudrat, Guillaume Boulliard, Jean-Michel Gérard, Aristide Lemaître, Aloyse Degiron, Giuseppe Leo

“…Our findings underscore the potential of nonlinear dielectric metasurfaces for versatile structured-light generation and manipulation, paving the way for future developments in integrated photonic systems.…”
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