Article
Materials Science, Multidisciplinary
Sergey A. Dyakov, Ilia M. Fradkin, Dmitry Yurasov, Vladimir A. Zinovyev, Sergei G. Tikhodeev, Nikolay A. Gippius
Summary: We present the theoretical studies on the Purcell effect in infinite photonic crystal slabs without defects or cavities. By placing the dipoles in the hot spots of modes with the zero group velocity, the Purcell factor can be greatly enhanced. This effect is associated with Van Hove singularities.
Article
Optics
Francis Segovia-Chaves, Herbert Vinck-Posada
Summary: This study employs the Guided-Mode Expansion method to calculate the photonic band structure and quality factor of a photonic slab made up of a hexagonal lattice of air holes in a semiconductor material. It is observed that the dielectric constant of the semiconductor changes with pressure at a constant temperature, leading to an increase in frequency of a confined waveguide as pressure rises, while the quality factor decreases.
Review
Physics, Multidisciplinary
Wen-Zhe Liu, Lei Shi, Che-Ting Chan, Jian Zi
Summary: This review summarizes the recent research progress on momentum-space polarization fields and singularities in two-dimensional photonic-crystal slabs, focusing on their unique optical properties and potential applications.
Article
Engineering, Electrical & Electronic
Jackelyne L. M. Villanueva, Danilo. R. Huanca, Adhimar F. Oliveira
Summary: The use of protective treatments on photonic crystal structures can stabilize the optical response and reduce sensitivity loss.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Nanoscience & Nanotechnology
Shihao Du, Wenjie Zhang, Wenzhe Liu, Yanbin Zhang, Maoxiong Zhao, Lei Shi
Summary: In this letter, the large transmitted optical positive and negative Goos-Hanchen shifts in photonic crystal slabs are demonstrated both numerically and experimentally. The observed Goos-Hanchen shift reaches up to 20 μm, 30 times the wavelength, which is close to the beam waist radius. By measuring the transmission phase, an acute phase change near the resonance in photonic crystal slabs is discovered, which enhances the Goos-Hanchen shift. The experimental results are consistent with simulations, and this work can be utilized for further research on light propagation modulation.
Article
Nanoscience & Nanotechnology
Beicheng Lou, Shanhui Fan
Summary: The tunable narrow-band-stop frequency filter is based on twisted bilayer photonic crystal slabs, operating under guided resonance. The desired notch filter line shape can be achieved by introducing additional uniform slabs, allowing the filter to operate without diffraction loss and polarization dependence. This type of filter could be important for communication and signal processing applications.
Article
Optics
Hang Yu, Z. Ikonic, D. Indjin
Summary: In this study, we simulated Si-based 2D photonic crystal slabs and compared the performance of different lattice types and hole structures in modulating the refractive index of Si. We found the most promising structures for Si photonics electro-optic modulators based on the transition between photonic bands.
Article
Engineering, Electrical & Electronic
Rongfeng Zhang, Hongwei Yang, Huifeng Chen, Wenguo Zhu, Huadan Zheng, Jianhui Yu, Yongchun Zhong, Zhe Chen
Summary: Research shows that a tiny incident angle can lead to wave-vector-varying Pancharatnam-Berry phases, resulting in high-performance photonic spin Hall effect in optical elements with rotation symmetry. Investigating photonic crystal slabs of square lattices, it has been demonstrated that the C-4 nu symmetry of the slabs enables giant PSHE even with a small incident angle. The guided-mode resonances of the subwavelength-thickness slab enhance the PSHE, allowing for a wide range of spin separation adjustments.
IEEE PHOTONICS JOURNAL
(2022)
Article
Optics
Furong Zhang, Lu He, Huizhen Zhang, Ling-Jun Kong, Xingsheng Xu, Xiangdong Zhang
Summary: As the field of topological photonics has developed, the combination of topology and photons has been proven beneficial for designing robust optical devices. However, most of the work remains theoretical, with few topologically-protected logic devices fabricated in experiments. This paper reports the experimental fabrication of a series of topologically-protected all-optical logic gates on silicon photonic platforms, showing strong robustness even in the presence of disorders. These robust logic devices have potential applications in future optical signal processing and computing.
LASER & PHOTONICS REVIEWS
(2023)
Article
Physics, Condensed Matter
Mazen M. Abadla, Khedr M. Abohassan, Hassan S. Ashour
Summary: A novel structure of one-dimensional binary photonic crystals made of alternating graphene and dielectric stripes was introduced in this work, analyzed using the transfer matrix method to study electromagnetic wave propagation and determine transmittance. The proposed structures have potential applications in designing various tunable devices, and the optical response is found in the 17-60 THz frequency range, which has not been investigated before.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Crystallography
Piotr Witonski, Agnieszka Mossakowska-Wyszynska, Pawel Szczepanski
Summary: In this paper, the gain properties of a single primitive cell of a one-dimensional photonic crystal with parity-time symmetry are analyzed for the first time. A simple model is proposed to study the transmission and amplification properties of the cell made of different optical materials, considering the refractive index of the surrounding medium. The analysis is conducted using a transfer matrix method. The obtained characteristics indicate the optimal size of the structure that provides wave amplification.
Article
Materials Science, Multidisciplinary
Ying Chen, Ze-Huan Zheng, Hai-Xiao Wang, Feng Wu, Huanyang Chen
Summary: We design bilayer mirror-symmetric photonic crystal slabs (I-shaped) that support dual-band topological edge states simultaneously, confirmed by topological phases and localized field distributions. By adjusting the coupling strengths at different positions of the I-shaped structure, the band structures can exhibit different topology in different frequency bands, enabling flexible emergence of dual-band or single-band edge states at two or one band gaps, respectively. Furthermore, we investigate the influence of broken mirror symmetry Mz on the dual-band states. This study offers a promising approach to realize multiband topological states and enhance the efficiency of robust light transport.
RESULTS IN PHYSICS
(2023)
Article
Optics
Zihao Chen, Xuefan Yin, Peishen Li, Zhao Zheng, Zixuan Zhang, Feifan Wang, Chao Peng
Summary: An analytical three-dimensional coupled-wave theory is proposed in this paper to describe the discretized modes of finite-size photonic crystal slabs residing inside and outside the continuum. The theory derives the equations for the slow-varying envelop function of dominant Bloch waves and analytically solves them by combining basis functions with appropriate boundary conditions. The proposed method provides a clear physical picture for the origins of finite-size modes and offers an efficient and comprehensive tool for designing and optimizing photonic crystal devices.
Article
Nanoscience & Nanotechnology
Helena Borlina Tanaue, Ernesto Reyes-Gomez, Alexys Bruno-Alfonso
Summary: The effects of metamaterial inclusion and lack of inversion symmetry on localized modes in one-dimensional photonic heterostructures under normal incidence were investigated. It was found that defect modes in defective photonic crystals display leftward and rightward damped oscillations with the same ratio, even in the absence of inversion symmetry in the unit cell. An anomalous exponential decay of the magnetic field near one edge of the zero-n gap was observed in heterostructures including metamaterials.
PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS
(2021)
Article
Physics, Applied
Youssef Trabelsi, Naim Ben Ali, Francis Segovia-Chaves, Herbert Vinck-Posada
Summary: One-dimensional superconducting photonic slabs consisting of alternating layers of SiO2 and YBCO are theoretically investigated using the Gorter Casimir two fluid model and the transfer matrix method. Photonic quasicrystals are constructed based on the inflation rule of quasiperiodic sequences, leading to enhancement of the photonic band gap. The bandwidth of the photonic band gap can be increased by adjusting the temperature of the superconductor and the parameters of the quasiperiodic sequence. An overall photonic band gap is achieved in the visible frequency range and can be further enhanced by applying a typical thickness deformation.
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2021)
Article
Physics, Applied
Eiichi Kuramochi, Kengo Nozaki, Akihiko Shinya, Hideaki Taniyama, Koji Takeda, Tomonari Sato, Shinji Matsuo, Masaya Notomi
APPLIED PHYSICS LETTERS
(2015)
Article
Optics
Hisashi Sumikura, Eiichi Kuramochi, Hideaki Taniyama, Masaya Notomi
Article
Optics
Feng Tian, Hisashi Sumikura, Eiichi Kuramochi, Hideaki Taniyama, Masato Takiguchi, Masaya Notomi
Article
Optics
Sylvain Sergent, Masato Takiguchi, Hideaki Taniyama, Akihiko Shinya, Eiichi Kuramochi, Masaya Notomi
Article
Optics
Masato Takiguchi, Hideaki Taniyama, Hisashi Sumikura, Muhammad Danang Birowosuto, Eiichi Kuramochi, Akihiko Shinya, Tomonari Sato, Koji Takeda, Shinji Matsuo, Masaya Notomi
Article
Optics
Masaaki Ono, Hideaki Taniyama, Hao Xu, Masato Tsunekawa, Eiichi Kuramochi, Kengo Nozaki, Masaya Notomi
Article
Optics
Sylvain Sergent, Hideaki Taniyama, Masaya Notomi
Article
Nanoscience & Nanotechnology
Atsushi Yokoo, Masato Takiguchi, Muhammad Danang Birowosuto, Kouta Tateno, Guoqiang Zhang, Eiichi Kuramochi, Akihiko Shinya, Hideaki Taniyama, Masaya Notomi
Article
Nanoscience & Nanotechnology
Sylvain Sergent, Masato Takiguchi, Tai Tsuchizawa, Atsushi Yokoo, Hideaki Taniyama, Eichi Kuramochi, Masaya Notomi
Article
Optics
Elichi Kuramochi, Hadrien Duprez, Junki Kim, Masato Takiguchi, Koji Takeda, Takuro Fuji, Kengo Nozaki, Akihiko Shinya, Hisashi Sumikura, Hideaki Taniyama, Shinji Matsuo, Masaya Notomi
Article
Optics
Hideaki Taniyama, Hisashi Sumikura, Masaya Notomi
Proceedings Paper
Engineering, Electrical & Electronic
Eiichi Kuramochi, Jun-Ki Kim, Hideaki Taniyama, Akihiko Shinya, Shota Kita, Masaya Notomi
2017 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
(2017)
Proceedings Paper
Engineering, Electrical & Electronic
F. Tian, H. Sumikura, E. Kuramochi, H. Taniyama, M. Notomi
2016 IEEE PHOTONICS CONFERENCE (IPC)
(2016)
Article
Materials Science, Multidisciplinary
Hisashi Sumikura, Eiichi Kuramochi, Hideaki Taniyama, Masaya Notomi
Proceedings Paper
Engineering, Electrical & Electronic
Eiichi Kuramochi, Hadrien Duprez, Hideaki Taniyama, Hisashi Sumikura, Kengo Nozaki, Akihiko Shinya, Masaya Notomi
2015 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
(2015)
