Broadband Diffractive Neural Networks Enabling Classification of Visible Wavelengths
Wiley Online Library » Advanced Photonics Research
by Ying Zhi Cheong, Litty Thekkekara, Madhu Bhaskaran, Blanca del Rosal, Sharath Sriram
3d ago
Diffractive Neural Networks In article number 2300310, Ying Zhi Cheong, Blanca del Rosal, Sharath Sriram, and co-workers propose and demonstrate a microscale multi-layer diffractive neural network approach that classifies various wavelengths in the visible spectrum. This miniaturised classification approach, achieved through two-photon polymerization, has potential application in medical diagnosis to material science, enabling rapid detection of analytes based on the presence of optical extinction bands at specific wavelengths ..read more
Visit website
Masthead
Wiley Online Library » Advanced Photonics Research
by
3d ago
Advanced Photonics Research, Volume 5, Issue 6, June 2024 ..read more
Visit website
Progress on Coherent Perovskites Emitters: From Light‐Emitting Diodes under High Current Density Operation to Laser Diodes
Wiley Online Library » Advanced Photonics Research
by Gayoung Lee, Yejin Jun, Hyeonji Lee, Kwangdong Roh
3d ago
This review article discusses the recent progress to develop electrically driven lasers from perovskite thin films. It begins with an overview of optically pumped pulsed and continuous-wave lasers in various feedback structures. Additionally, it introduces efforts to achieve ultra-high current density operation in light-emitting diodes and to estimate threshold current density levels, which are crucial steps toward realizing laser diodes. Perovskites exhibit appealing optical and electrical properties, making them attractive candidates for efficient luminescent materials with low-cost and st ..read more
Visit website
Recent Advances in Molecular Engineering for Viologen‐Based Electrochromic Materials: A Mini‐Review
Wiley Online Library » Advanced Photonics Research
by Bebin Ambrose, Murugan Krishnan, Kalaivanan Ramamurthy, Murugavel Kathiresan
3d ago
Molecular engineering can be used to produce viologen-based electrochromic materials with exceptional dynamism and responsiveness for a range of technological uses. This study offers valuable insights into recent discoveries and motivates additional advancements in this rapidly evolving field, which will be of tremendous use to researchers. Viologens, with their unique redox-active properties, have garnered increasing attention in the development of electrochromic devices. This review focuses on key strategies in molecular design, synthesis methodologies, and tailored functionalities that ha ..read more
Visit website
Modified Coupled‐Mode Theory for the Absorption in Plasmonic Lattices
Wiley Online Library » Advanced Photonics Research
by Joshua T. Y. Tse, Shunsuke Murai, Katsuhisa Tanaka
3d ago
The competing absorptions by plasmonic nanoparticles and photoluminescent absorbers in plasmonic lattices are analyzed based on a modified coupled-mode theory and utilized to predict the energy absorption by each component respectively. The behavior of the non-resonant absorption and the resonant absorptive decay are parametrized and compared between different plasmonic and dielectric lattices to reveal the mechanism of absorption enhancement. Surface lattice resonance supported on plasmonic nanoparticle arrays enhances light-matter interactions for applications such as photoluminescence enh ..read more
Visit website
Pancharatnam–Berry‐Phase‐Based Plasmonic Metasurfaces Enable Wavelength‐Selective Directional Focusing and Vortex
Wiley Online Library » Advanced Photonics Research
by Heyi Zhang, Chunhui Zhu, Zhengyong Song
2w ago
Meta-atoms with half-wave plate effect are utilized to compose the metasurface. Pancharatnam–Berry-phase-based plasmonic metasurfaces are presented to realize wavelength-selective directional focusing and vortex at different predetermined positions on the same focal plane. The thickness of the plasmonic metasurface is only one-sixth of the minimum design wavelength of 187 μm. Multifoci focusing has always been a problem that researchers continue to pay attention to and urgently needs to be solved. Metasurfaces display unprecedented capabilities and flexibilities to solve this problem. In thi ..read more
Visit website
Pressure‐Induced Successive Phase Transitions and Optical Properties in Lu2SiO5
Wiley Online Library » Advanced Photonics Research
by Wenming Qi, Anwar Hushur, Lin He, Rabigul Tursun, Min Gao
2w ago
This study uses lutecium silicate as a rock example to investigate its two high-pressure phases and lattice dynamics up to 35.1 GPa. Raman evidence for pressure-induced successive phase transitions of highly symmetric insulator intercepted in prototype Lu2SiO5 is given. This work provides physical insights to explain the self-regulation of rare earth-rich regions for facilitating highly effective global carbon cycling. Herein, lutecium silicate is used as a rock example to investigate its two high-pressure phases (7.4 GPa: HP-II and 25.3 GPa: HP-III) and lattice dynamics by in situ high-pres ..read more
Visit website
Ultrafast Terahertz Superconductor Van der Waals Metamaterial Photonic Switch
Wiley Online Library » Advanced Photonics Research
by Kaveh Delfanazari
2w ago
Ultrafast terahertz photonic integrated circuits are fundamental in emerging technologies. Researchers have proposed a novel tunable ultrafast terahertz photonic switch with a picosecond switching timescale, featuring split-ring resonator metamaterial arrays on layered high-temperature superconductor van der Waals. The technology holds promise for energy-efficient future terahertz communication systems operating at cryogenic temperatures The high-temperature layered superconductor (HTS) BSCCO is one of the key quantum material platforms in THz science and technology. Compact, stable, and rel ..read more
Visit website
Coherent and Incoherent Breathing Solitons in a Bidirectional Ultrafast Thulium Fiber Laser
Wiley Online Library » Advanced Photonics Research
by Yi Zhou, Jiqiang Kang, Kenneth K. Y. Wong
2w ago
Stable coherent and incoherent breathing solitons, and the switching between coherent breather and noise-like pulse are revealed in the 2 μm bidirectional ultrafast fiber laser, further verified by numerical simulation. These findings offer novel insight into the breather dynamics and a better understanding of decoherence and coherence recovery in ultrafast lasers. Mode-locked lasers are prone to exhibit a wide range of dynamics, including the coherent dissipative soliton with high robustness or the possible emission of incoherent pulse bursts. Herein, it is proposed to expand the notion of ..read more
Visit website
Vortex‐Beam Multiplexing Emitter Using Advanced Manufactured Leaky Cables
Wiley Online Library » Advanced Photonics Research
by Feiyang Deng, Kwai‐Man Luk, Wenjian Sun, Ka Fai Chan
3w ago
In a novel method based on leaky cables for generating multiple vortex beams in wireless communications, miniaturization, cost, and integration challenges are addressed. The approach, validated through prototype testing, presents a potential pathway for simplifying and cost-reducing orbital-angular-momentum-multiplexed communication systems. Although orbital angular momentum (OAM) is extensively explored and researched in various scientific domains, its practical application in wireless communications still faces numerous challenges. Notably, existing OAM beam generation technologies need to ..read more
Visit website

Follow Wiley Online Library » Advanced Photonics Research on FeedSpot

Continue with Google
Continue with Apple
OR