Article
Engineering, Electrical & Electronic
Guangqing Wang, Wenhan Cao, Xiaoyong He
Summary: A tunable terahertz hybrid plasmonic waveguide based on a 3D Dirac semimetal elliptical fiber is investigated. Increasing the elliptical ratio leads to an increase in the real part of the effective mode index and propagation length. The figure of merit reaches more than 1500 and the propagation length shows a peak near the interface between the near field and dissipation regions.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Khwanchai Tantiwanichapan, Habibe Durmaz
Summary: The article introduces the use of THz plasmonics and subwavelength scale artificial structures to detect residual herbicides/pesticides. Experimental results show that the THz MMA platform can detect herbicides/pesticides down to 5 ppm. This suggests that the THz MMA platform could be an important method for highly sensitive THz applications.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Chemistry, Multidisciplinary
Aoning Luo, Yuanjia Feng, Chunyan Zhu, Yipei Wang, Xiaoqin Wu
Summary: In this study, we propose a transfer learning approach for modeling metal nanowires and predicting their waveguiding properties. With the guidance of physics, basic knowledge of plasmon modes is first learned from circular nanowires, which is then transferred to improve the performance of predicting waveguiding properties of nanowires with complex configurations. Our approach reduces errors, trainable parameters, and training data required compared to direct learning methods, and significantly reduces computational time. Compared to non-deep learning methods, our approach offers higher accuracies and more comprehensive characterizations, making it an effective and efficient framework for investigating metal nanowires.
Article
Nanoscience & Nanotechnology
Cun-Zheng Ning
Summary: The essay reflects the author's reminiscences of engaging discussions with Mark Stockman over the years, particularly focusing on the spaser, its significance, and its correlation with plasmonic nanolasers.
Article
Materials Science, Multidisciplinary
Wenhao Li, Qiaolu Chen, Yiwen Sun, Song Han, Xudong Liu, Zhijie Mei, Xuejiao Xu, Shuting Fan, Zhengfang Qian, Hongsheng Chen, Yihao Yang
Summary: Waveguide tapers are essential in silicon photonics for maximizing the coupling efficiency, but they require large footprints. A concept of taper-free waveguides is proposed, enabled by photonic topological phases, allowing efficient coupling without tapers. The experiment on an all-silicon on-chip terahertz wave platform confirms the efficacy of this concept, demonstrating its robustness against sharp corners and potential barriers. This work provides a promising solution for future compact optical/THz photonic integrated circuits.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Michael Seidel, Yuhui Yang, Thorsten Schumacher, Yongheng Huo, Saimon Filipe Covre da Silva, Sven Rodt, Armando Rastelli, Stephan Reitzenstein, Markus Lippitz
Summary: Reliable single-photon sources, high coupling efficiency, and low propagation losses are key requirements for quantum plasmonic nanocircuits. The best overall performance of these nanocircuits is achieved by adding a spacer layer between the quantum dot and the plasmonic waveguide, resulting in an improved coupling efficiency through standing wave interference.
Article
Optics
Chia-Chien Huang
Summary: A multi-domain pseudospectral method (MPM) is proposed to study 2D material-based plasmonic waveguides in this study, exhibiting high accuracy and fast convergence at a relatively low computational cost compared to the finite element method. The MPM offers a highly efficient and accurate approach to the study of 2D material-based photonics devices.
Article
Physics, Applied
Tom Bosma, Joop Hendriks, Misagh Ghezellou, Nguyen T. Son, Jawad Ul-Hassan, Caspar H. van der Wal
Summary: Researchers have proposed a method for fabricating integrated photonic devices in silicon carbide and successfully tested it. They fabricated SiC structures, demonstrated waveguide functionality, and showed low propagation losses. These waveguide types allow for addressing color centers over a broad wavelength range with low inhomogeneity of optical properties.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Optics
C. A. Chavarin, E. Hardt, S. Gruessing, O. Skibitzki, I Costina, D. Spirito, W. Seifert, W. Klesse, C. L. Manganelli, C. You, J. Flesch, J. Piehler, M. Missori, L. Baldassarre, B. Witzigmann, G. Capellini
Summary: Ge-on-Si plasmonics technology shows potential in providing compact and low-cost solutions for manipulating THz radiation. Doped Ge bow-tie antennas exhibit resonances between 500 and 700 GHz, with surface functionalization and silicon nitride cap layer protection allowing for improved protection of the plasmonic material in microfluidic applications.
Article
Optics
Blake S. Dastrup, Eric R. Sung, Frank Wulf, Clara Saraceno, Keith A. Nelson
Summary: Utilizing total internal reflection to increase the distance of optical rectification and achieving velocity matching through angle tuning can significantly enhance terahertz spectral amplitude. However, further enhancement is limited by 3-photon absorption and divergence of the pump beam.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Optics
Mohammad Javad Mohammad-Zamani
Summary: The proposed terahertz photomixer features an innovative design of recessed contact electrodes, significantly enhancing optical absorption and terahertz photo current, leading to an increase in terahertz power by over three orders of magnitude. Additionally, the emitter has a wide frequency tuning capability ranging from 0.1-5 THz.
Review
Chemistry, Multidisciplinary
Giovanni Magno, Vy Yam, Beatrice Dagens, Andrei Lavrinenko
Summary: This article details the integration strategies of plasmonic structures on dielectric waveguides and demonstrates the variety and potential applications of integrated plasmonic functions through examples.
APPLIED SCIENCES-BASEL
(2023)
Review
Quantum Science & Technology
Shailesh Kumar, Sergey I. Bozhevolnyi
Summary: This review discusses recent developments in coupling single photon emitters to plasmonic waveguides, comparing different configurations and experimental methods to achieve high figure-of-merit (FOM) values. It also explores enhancing coupling efficiency and scalability potential of various waveguide platforms. The discussion includes an experiment demonstrating non-linearity at the single emitter level utilizing enhanced light-matter interaction in a plasmonic waveguide.
ADVANCED QUANTUM TECHNOLOGIES
(2021)
Article
Optics
Chengcheng Huang, Yonggang Zhang, Lanju Liang, Haiyun Yao, Fu Qiu, Wenjia Liu
Summary: A novel four-band tunable absorber sensor based on graphene is proposed, with the ability to directly control resonant frequencies and achieve absorption rates higher than 99% by adjusting the Fermi level of graphene. The sensor exhibits superior refractive index sensitivity and good linearity, making it highly promising for applications in the biomedical field.
Article
Chemistry, Physical
Naznin Akter, Adam Legacy, Fahmida Alam, Nezih Pala
Summary: Toroidal resonance in planar core-shell structures at THz frequencies can exhibit sharp resonance modes, and the response is geometry dependent and can be tuned for applications such as precise bio-sensing and narrow-band filters.
Article
Materials Science, Multidisciplinary
Ksenia Korzun, Gabriel W. Castellanos, Dick K. G. de Boer, Jaime Gomez Rivas, Jos E. M. Haverkort
Summary: Optimizing the spontaneous emission factor and guiding the photon emission through the nanowire can increase the efficiency of the solar cell. By launching the guided mode at the tapered nanowire and reducing the emission cone, the outcoupling efficiency of the emitted light can be improved.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Chemistry, Physical
Anton Matthijs Berghuis, T. Raziman, Alexei Halpin, Shaojun Wang, Alberto G. Curto, Jaime Gomez Rivas
Summary: Using diffraction-limited ultrafast imaging techniques, the study investigated the propagation of singlet and triplet excitons in single-crystal tetracene, revealing a narrowing distribution of singlet excitons after photoexcitation. This narrowing led to a negative diffusion effect where singlet excitons migrated towards high-density regions, ultimately resulting in a distribution smaller than the laser excitation spot. Modeling of the excited-state dynamics attributed this anomalous diffusion to nonlinear triplet-triplet annihilation (TTA), which may have broad implications for studying exciton diffusion and TTA rates in semiconductors relevant to organic optoelectronics.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Physics, Applied
Erik A. P. van Heijst, Stan E. T. ter Huurne, Jeroen A. H. P. Sol, Gabriel W. Castellanos, Mohammad Ramezani, Shunsuke Murai, Michael G. Debije, Jaime Gomez Rivas
Summary: We report on the design, fabrication, and analysis of a tunable device combining nanoparticle arrays that support collective surface lattice resonances (SLRs) with liquid crystals (LCs). The optoelectronic tunability of the nematic LC and the dependency of sharp SLRs on the refractive index of the environment are exploited to achieve spectral tunability. This device offers rapid and reversible tuning of the SLR wavelength through electrical control of the LC state, and also enables control of the presence of a quasi-guided mode.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Physical
Francesco Verdelli, Jeff J. P. M. Schulpen, Andrea Baldi, Jaime Gomez Rivas
Summary: This study investigates vibrational strong coupling of C-O bonds in poly(methyl methacrylate) to surface lattice resonances (SLRs) on gold particle arrays in infrared and Raman spectra. While evidence of strong coupling was seen in IR transmission spectra, it was not observed in Raman spectroscopy. Further research may be needed to find vibrational strong coupling in Raman spectra, possibly requiring alternative cavity designs or experimental approaches.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Optics
Teun D. G. Nevels, Lieke J. M. Ruijs, Paul van de Meugheuvel, Marc A. Verschuuren, Jaime Gomez Rivas, Mohammad Ramezani
Summary: Substrate conformal imprint lithography (SCIL) technology utilizes composite silicone rubber stamps to fabricate complex 3D nanostructures with sub-10 nm resolution for industrial-scale production. This study proposes a novel optical characterization method using Fourier microscopy to inspect and analyze the critical dimensions of the nanostructures.
Article
Materials Science, Multidisciplinary
T. Raziman, C. Peter Visser, Shaojun Wang, Jaime Gomez Rivas, Alberto G. Curto
Summary: This research goes beyond the localized Purcell effect by exploiting exciton dynamics to convert its detrimental impact into additional emission. The diffusion of interacting excitons in optical hotspots leads to either enhanced or suppressed photoluminescence, depending on the balance between excitonic and nanophotonic properties.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Anton Matthijs Berghuis, Ruth H. Tichauer, Lianne M. A. de Jong, Ilia Sokolovskii, Ping Bai, Mohammad Ramezani, Shunsuke Murai, Gerrit Groenhof, Jaime Gomez Rivas
Summary: In this study, the limitations of incoherent exciton transport in organic materials were overcome by strongly coupling localized singlet excitations with confined light modes. The resulting exciton-polaritons exhibited significantly longer propagation lengths compared to singlet exciton diffusion. The anisotropy of exciton flow in organic crystals was also found to be modulated by the dipole moment of the exciton transition. These findings are important for the development of high-performance organic devices with lower recombination losses.
Article
Physics, Applied
Ping Bai, Mohamed S. Abdelkhalik, Diogo G. A. Castanheira, Jaime Gomez Rivas
Summary: In this study, we used a particle swarm optimization algorithm and finite-difference time-domain simulations to design metallic nanoparticle and nanohole array electrodes to enhance the short-circuit current of organic solar cells.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Optics
Shunsuke Murai, Diego R. Abujetas, Libei Liu, Gabriel W. Castellanos, Vincenzo Giannini, Jose A. Sanchez-Gil, Katsuhisa Tanaka, Jaime Gomez Rivas
Summary: Various optical phenomena can be induced in periodic arrays of nanoparticles through the radiative coupling of local dipoles. This study explores the tuning of bound states in the continuum (BICs) at telecom wavelengths in non-Bravais lattices by adjusting the size and position of lattice points. The results provide a simple way to achieve tunable BICs in both plasmonic and dielectric systems.
LASER & PHOTONICS REVIEWS
(2022)
Article
Multidisciplinary Sciences
Ferry Anggoro Ardy Nugroho, Ping Bai, Iwan Darmadi, Gabriel W. Castellanos, Joachim Fritzsche, Christoph Langhammer, Jaime Gomez Rivas, Andrea Baldi
Summary: In this study, a plasmonic metasurface based on a periodic array of Pd nanoparticles was inversely designed, resulting in a sensor with a measured hydrogen detection limit of 250 ppb, significantly improving current plasmonic hydrogen sensor capabilities.
NATURE COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Stan E. T. ter Huurne, Adonai Rodrigues Da Cruz, Niels van Hoof, Rasmus H. Godiksen, Sara A. Elrafei, Alberto G. Curto, Michael E. Flatte, Jaime Gomez Rivas
Summary: By using THz near-field spectroscopy, time-resolved THz measurements were conducted on a single nanolayered crystal. This technique allows for the investigation of the relation between carrier dynamics and phonon transport in nanolayered crystals.
ACS APPLIED NANO MATERIALS
(2022)
Proceedings Paper
Engineering, Electrical & Electronic
K. Korzun, P. A. L. M. Koolen, I Kolpakov, E. A. Bochicchio, J. Gomez Rivas, J. E. M. Haverkort
Summary: This study demonstrates the improvement of a nanowire solar cell's performance beyond the Shockley-Queisser limit by incorporating plano-convex lenses on top of each nanowire. Numerical simulations show that by optimizing the design, the open-circuit voltage of the solar cell can be significantly increased, approaching the ultimate limit.
PHYSICS, SIMULATION, AND PHOTONIC ENGINEERING OF PHOTOVOLTAIC DEVICES XI
(2022)
Proceedings Paper
Engineering, Electrical & Electronic
Shihab Al-Daffaie, Maira Perez Sosa, Alaa Jumaah, Jaime Gomez Rivas, Idelfonso Tafur Monroy, Franko Kueppers
Summary: This study introduces a new THz system platform based on photonic integrated circuits and micro-structured photoconductive antennas, which significantly reduces equipment size and enables the integration of THz optical devices. The results show that this platform has comparable performance to traditional devices, while offering higher flexibility, portability, and energy efficiency.
SMART PHOTONIC AND OPTOELECTRONIC INTEGRATED CIRCUITS 2022
(2022)
Proceedings Paper
Engineering, Electrical & Electronic
Jaime Gomez Rivas, Erik A. P. van Heijst
Summary: This study demonstrates the active control of resonant plasmonic nanoantenna arrays using liquid crystals, surface lattice resonances, and quasi-guided modes.
2022 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC)
(2022)
Proceedings Paper
Engineering, Electrical & Electronic
T. Raziman, C. Peter Visser, Shaojun Wang, Jaime Gomez Rivas, Alberto G. Curto
Summary: This study goes beyond the conventional localized Purcell effect in nanophotonic emission enhancement, taking into account excitonic diffusion and annihilation phenomena. The identified enhancement mechanisms aim to turn the detrimental impact into additional emission.
2021 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
(2021)
