Article
Engineering, Electrical & Electronic
Renhua Yang, Yiwen Zhang, Jingui Qian, Joshua E-Y Lee
Summary: This study explores the effect of crystal orientation on the acoustic band gap (ABG) and quality factor (Q) enhancement of two different phononic crystal designs. The results show that the ABG of a disk phononic crystal is orientation-insensitive, while adding a hole to form a ring phononic crystal significantly increases its sensitivity to orientation. By utilizing the phononic crystals as boundary anchors, the disk phononic crystal exhibits high Q values in both <110> and <100> directions, whereas the ring phononic crystal is only effective in the <110> direction.
IEEE SENSORS JOURNAL
(2022)
Article
Acoustics
Xiao-Shuang Li, Xiao-Lei Tang, Xiao-Xing Su, Chuanzeng Zhang, Yue-Sheng Wang
Summary: In this study, three-dimensional phononic crystal-based coupled resonator waveguides (PnCCRWs) are proposed for guiding acoustic waves along complex routes. The interaction between the PnC point defects is described by the tight-binding model, enabling the propagation of acoustic wave energy along designated paths.
JOURNAL OF SOUND AND VIBRATION
(2022)
Article
Physics, Applied
Ming Cheng, Kang Wang, Junqiang Sun
Summary: Enhanced four-wave mixing (FWM) is experimentally demonstrated in a silicon-based cascaded racetrack microring resonator (MRR) by harnessing forward stimulated Brillouin scattering (FSBS), achieving a Brillouin frequency shift (BFS) from 3.34 to 7.13GHz. This same system can also act as a single-sideband modulator, providing over 17dB of single-sideband rejection ratio.
APPLIED PHYSICS LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Daquan Yang, Yuanyuan Guo, Wen Chen, Yanran Wu, Kunpeng Zhai, Xin Wang, Jiabin Cui, Huashun Wen, Chuan Wang
Summary: In this study, a packaged silica microrod resonator (PSMR) with ultrahigh-Q of 9.0 x 10(8) is experimentally demonstrated. The PSMR shows high stability of resonant wavelength shift within 0.032 pm and has the potential to be a platform for optical signal processing and quantum photonics.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
J. A. Lopez-Toledo, G. Baez, R. A. Mendez-Sanchez
Summary: A theoretical model describing the vibration properties of a new mechanical metamaterial, the coupled-resonator phononic metamaterial (CRPM), was developed in this study. The CRPM, composed of mechanical resonators coupled through finite phononic crystals, exhibits spectral properties similar to those of crystalline atomic systems. The study found that CRPMs follow a quantum tight-binding model when a normal mode frequency of the resonators lies within a bandgap of the finite phononic crystals.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2022)
Article
Nanoscience & Nanotechnology
Farhad Hosseinpour Asgharkhani, Ali Bahrami
Summary: This paper introduces a novel phononic crystal structure and proposes a new type of resonator for achieving acoustic XOR logic gates. Simulation results demonstrate the feasibility of implementing two-input and four-input acoustic XOR logic gates using the proposed structures.
PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS
(2023)
Article
Mechanics
Ting-Ting Wang, Yan-Feng Wang, Zi-Chen Deng, Vincent Laude, Yue-Sheng Wang
Summary: In this study, we investigated the propagation of acoustoelastic waves in a two-dimensional phononic metaplate through numerical simulations and experiments. By selectively emptying certain cups, reconfigurable coupled-resonator acoustoelastic waveguides were created, and the 90 degrees bent waveguides and the collective resonances of the aperiodic chain were observed. The experimental results were compared to a three-dimensional finite element model, taking fluid-structure interaction into account. This study demonstrates the potential for designing reconfigurable and programmable elastic wave devices.
COMPOSITE STRUCTURES
(2023)
Article
Optics
Wei Wu, Qibing Sun, Guoxi Wang, Lingxuan Zhang, Wei Zhao
Summary: A novel graphene-on-silicon organic hybrid slot microring resonator (GSHMIR) was proposed for tunable all-optical logic gates, offering broadband ultra-flattened dispersion and high nonlinearity coefficient. Further investigations showed that the third-order dispersion affects the temporal drift of output pulses, demonstrating high-efficiency tunable all-optical AND logic function over a wide wavelength range.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Optics
Yuanhongliu Gao, Tonglei Cheng, Shuguang Li, Xin Yan
Summary: The highly nonlinear tellurite photonic crystal fiber exhibits good four wave mixing performance, particularly suitable for the 1550 nm communication window and mid infrared region.
Article
Acoustics
Ahmet Bicer
Summary: An acoustic add-drop filter is designed using two parallel one-dimensional surface phononic crystals for spoof surface acoustic waves and a circular ring resonator. Both numerical and experimental investigations show consistent results, making it suitable for applications in areas such as ultrasonic sensors, acoustic signal processing, and acoustic logic.
Article
Engineering, Mechanical
Soo-Ho Jo, Heonjun Yoon, Yong Chang Shin, Byeng D. Youn
Summary: Phononic crystals have the ability to manipulate elastic waves, with this study proposing an analytical model to reveal the fundamental mechanisms behind defect-mode-enabled energy localization. The study demonstrates that defect-mode shapes are normal modes, and that evanescent waves in a band gap play a crucial role in the formation and splitting of defect bands.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Physics, Applied
Chaoyu Sun, Ailing Song, Yanxun Xiang, Fu-Zhen Xuan
Summary: This paper proposes a phononic crystal filter to purify the ultrasonic signal in nonlinear guided wave testing. The design principle, theoretical analysis, and numerical simulations of the proposed filter are introduced, and the results demonstrate its applicability in low-frequency S0 mode Lamb wave nonlinear harmonic wave testing.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Physics, Applied
Massimo Borghi, Federico Andrea Sabattoli, Houssein El Dirani, Laurene Youssef, Camille Petit-Etienne, Erwine Pargon, J. E. Sipe, Amideddin Mataji-Kojouri, Marco Liscidini, Corrado Sciancalepore, Matteo Galli, Daniele Bajoni
Summary: This research reports on the phenomenon of super spontaneous four-wave mixing in a composite optical system, which is analogous to the generation of photon pairs in an integrated photonic device. The researchers provide experimental evidence by studying an array of microring resonators on a silicon photonic chip, showing that the cooperative pair-generation rate always exceeds the incoherent sum of the rates of the individual resonators.
PHYSICAL REVIEW APPLIED
(2022)
Article
Optics
Lan-Tian Feng, Yu-Jie Cheng, Xiao-Zhuo Qi, Zhi-Yuan Zhou, Ming Zhang, Dao-Xin Dai, Guang-Can Guo, Xi-Feng Ren
Summary: This study investigates the spontaneous four-wave mixing effect in cryogenically-operated silicon waveguides and demonstrates its effectiveness in generating quantum photonic sources. The generated cryogenic photon-pair source is verified over multiple frequency channels within a bandwidth of approximately 2 THz and is utilized to generate high-quality frequency-multiplexed energy-time entangled states. This work advances the development of cryogenic nonlinear photonics and scalable integrated photonics for quantum information processing.
Article
Crystallography
Mohd Syafiq Faiz, Norazreen Abd Aziz
Summary: In this study, a mono-channel waveguide with alternate hollow pillars of different radius was numerically simulated using the Finite Element Method (FEM). The propagation behavior of elastic waves on the waveguide structure was studied by computing the dispersion relation, transmission coefficient, and stress displacement profile of the waveguides. The results showed that the proposed model can achieve tailorable frequency shift within the bandgap region by optimizing the inner radius of hollow pillar.
Article
Physics, Multidisciplinary
Ryuichi Ohta, Loic Herpin, Victor M. Bastidas, Takehiko Tawara, Hiroshi Yamaguchi, Hajime Okamoto
Summary: The study demonstrates a strain-mediated interaction between phonons and telecom photons using erbium ions in a mechanical resonator. Due to the long-lived nature of rare-earth ions, the dissipation rate of the optical resonance falls below that of the mechanical one, achieving a reversed dissipation regime in the optical frequency region. The interaction leads to stimulated excitation of erbium ions and the potential for single-photon strong coupling exceeding the dissipation rates of erbium and mechanical systems.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Applied
Hiroshi Yamaguchi, Samer Houri
Summary: The research investigates the theoretical and numerical generation and propagation of a topological soliton using a coupled parametric resonator array. The topological protection of the soliton, triggered propagation by switching resonator phase, and effects of damping, collision, and harmonic drive on propagation dynamics are studied. The study also explores the implementation of a topological soliton using electromechanical resonators for precise electrical control of propagation dynamics.
PHYSICAL REVIEW APPLIED
(2021)
Article
Nanoscience & Nanotechnology
D. Hatanaka, H. Yamaguchi
Summary: The acoustically driven spin-wave resonance in a phononic-crystal cavity is numerically investigated, showing the potential to control spin-wave dynamics with ultrasmall and inhomogeneous mode structures. One specific monopole-like mode in the cavity can provide a versatile acoustic excitation scheme independent of the field-angle variation, offering a key technology for large-scale magnomechanical circuits.
Article
Physics, Applied
Samer Houri, Motoki Asano, Hajime Okamoto, Hiroshi Yamaguchi
Summary: This study introduces a new mode of operation for Duffing-type nonlinear microelectromechanical system devices, which generates a self-sustained librator regime to produce multifrequency output. It provides a novel experimental tool for exploring the dynamics of microelectromechanical systems.
PHYSICAL REVIEW APPLIED
(2021)
Article
Physics, Applied
Megumi Kurosu, Daiki Hatanaka, Hajime Okamoto, Hiroshi Yamaguchi
Summary: The research team successfully fabricated and characterized a silicon phonon waveguide structure with PZT piezoelectric transducers, enabling the evaluation of nonlinearity. They observed a softening nonlinear response as a function of drive power and demonstrated the ability for mode shift and frequency conversion.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2022)
News Item
Physics, Multidisciplinary
H. Yamaguchi, D. Hatanaka
Article
Physics, Applied
D. Hatanaka, M. Asano, H. Okamoto, Y. Kunihashi, H. Sanada, H. Yamaguchi
Summary: This article reports a planar cavity magnomechanical system that uses standing acoustic waves to enhance spatial and spectral power density, achieving magnified magnon-phonon coupling. This system provides a new method for the coherent acoustic control of magnons and the development of spin-acoustic technologies.
PHYSICAL REVIEW APPLIED
(2022)
Article
Physics, Applied
Wataru Tomita, Satoshi Sasaki, Motoki Asano, Kouta Tateno, Hajime Okamoto, Hiroshi Yamaguchi
Summary: In this study, a nanowire-based electromechanical resonator device with vacuum-gap and orthogonally aligned double-gate geometry is used to independently control two nearly degenerate orthogonal vibration modes. The piezoresistance mechanism dominates the motion-induced conductance variation in the device, providing an efficient method for converting vibrational motion into an electric signal. By applying two gate voltages simultaneously, an opposite combined effect on the frequency shift between the two vibration modes is achieved, which is well explained by model calculations. This study demonstrates the vectorial control of two mode frequencies using the opposite double-gate effect, which is not possible with single-gate geometry.
PHYSICAL REVIEW APPLIED
(2022)
Article
Multidisciplinary Sciences
Motoki Asano, Hiroshi Yamaguchi, Hajime Okamoto
Summary: This study introduces a new probe technology using twin-microbottle resonators to achieve high-performance sensing of liquid samples. This technique enables in situ metrology in arbitrary media and has the potential to be applied in ultrasensitive biochips and rheometers.
Article
Physics, Applied
Katsuhiko Nishiguchi, Hiroshi Yamaguchi, Akira Fujiwara, Herre S. J. van der Zant, Gary A. Steele
Summary: We have demonstrated charge detection with single-electron resolution at high readout frequency using a silicon field-effect transistor integrated with double resonant circuits. The transistor, with a channel width of 10 nm, can detect a single electron at room temperature. The transistor is connected to resonant circuits composed of coupled inductors and capacitors, providing two resonance frequencies. By driving the transistor with a carrier signal at the lower resonance frequency, a small signal applied to the transistor's gate modulates the resonance condition, resulting in a reflected signal appearing near the higher resonance frequency. This operation allows for charge detection with a single-electron resolution of 3 x 10(-3) e/Hz(0.5) and a readout frequency of 200 MHz at room temperature.
APPLIED PHYSICS LETTERS
(2023)
Article
Physics, Applied
Katsuhiko Nishiguchi, Hiroshi Yamaguchi, Akira Fujiwara
Summary: We detect the mechanical oscillations of a nanoelectromechanical system (NEMS) composed of a multilayer-graphene (MLG) membrane using a Si field-effect transistor (FET) and a microwave probe connected to double-resonant circuits. The mechanical oscillations of the MLG membrane as it functions as the gate of the FET are monitored through modulation of the FET's impedance. This rf-signal-driven readout at 340 MHz allows for highly sensitive and functional sensors for small mass and quantum mechanics as well as timing devices.
PHYSICAL REVIEW APPLIED
(2023)
Article
Physics, Applied
Motoki Asano, Hiroshi Yamaguchi, Hajime Okamoto
Summary: In this study, a sub-femtogram resolution in-liquid cavity optomechanical mass sensor based on the twin-microbottle glass resonator is demonstrated. Evaluation of the frequency stability using an optomechanical phase-locked loop shows that this sensor provides the highest mass resolution of (7.0 +/- 2.0) x 10(- 16)g in water, which is four orders of magnitude better than the first-generation setup. The highly sensitive mass sensor can be utilized as a free-access optomechanical probe in liquid for various in situ chemical and biological metrology applications.
APPLIED PHYSICS EXPRESS
(2023)
Article
Physics, Applied
M. Kurosu, D. Hatanaka, R. Ohta, H. Yamaguchi, Y. Taniyasu, H. Okamoto
Summary: We have demonstrated an almost impedance-matched high-overtone bulk acoustic resonator (HBAR) operating at super high frequency ranges. It utilizes an epitaxial AlN piezoelectric layer directly grown on a conductive SiC cavity substrate without the need for a metal layer insertion. Our HBAR achieves broadband phonon cavity modes up to the K-band (26.5 GHz) and has a high figure of merit of f x Q=1.3x10(13) Hz at 10 GHz. This technology holds great potential for the development of microwave signal processing devices for 5G and future 6G communication systems, as well as research on high-frequency acoustic systems hybridized with electric, optical, and magnetic systems.
APPLIED PHYSICS LETTERS
(2023)
Article
Physics, Applied
Daiki Hatanaka, Motoki Asano, Hajime Okamoto, Hiroshi Yamaguchi
Summary: Phononic crystals (PnC) can confine phonons in a small area due to a band gap, enhancing their interaction with different systems. In this study, PnC is used to manipulate magnons via ultrahigh frequency phonons confined in a phononic cavity, exciting magnons in a micromagnet through magnetostriction. Furthermore, the magnetoelastic interaction is modulated by selectively exciting cavity resonant modes. These results open up new possibilities for PnC cavity magnomechanics and universal controls of ultrahigh frequency magnons and phonons with PnC circuits.
PHYSICAL REVIEW APPLIED
(2023)
Article
Engineering, Multidisciplinary
V. A. Seleznev, V. S. Tumashev, H. Yamaguchi, V. Ya. Prinz
Summary: A new method for fabricating large-area metal and semiconductor nanobridge arrays is proposed in this article, which combines the possibilities offered by nanotransfer printing and UV lithography. The method involves imprinting an array of nanostrips into a resist layer and subsequent UV exposure through an additional mask to define the regions where suspended nanostrip bridges will be formed. Using this method, large-area arrays of Au and Ti/Au nanobridge, as well as SiGe nanobridge arrays, were successfully fabricated. The proposed method is simple, low-cost, and can be implemented on solid and polymer substrates.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2023)
