Review
Nanoscience & Nanotechnology
Bei-Bei Li, Lingfeng Ou, Yuechen Lei, Yong-Chun Liu
Summary: Cavity optomechanical systems enable interactions between light and mechanical resonators for fundamental physics and practical precision sensing applications. The resonant enhancement of mechanical and optical response in these systems allows for precise sensing of various physical quantities. Progress has been made in utilizing quantum techniques, especially squeezed light, to enhance the performance of optomechanical sensors.
Article
Optics
Yi Xia, Aman R. R. Agrawal, Christian M. M. Pluchar, Anthony J. J. Brady, Zhen Liu, Quntao Zhuang, Dalziel J. J. Wilson, Zheshen Zhang
Summary: Joint force measurements with entangled optical probes on multiple optomechanical sensors can improve the bandwidth in the thermal-noise-dominant regime or the sensitivity in the shot-noise-dominant regime. The overall performance of entangled probes is quantified with a 25% increase compared to classical probes. This entanglement-enhanced optomechanical sensing has potential applications in inertial navigation, acoustic imaging, and searches for new physics.
Article
Nanoscience & Nanotechnology
Yanping Chen, Shen Liu, Guiqing Hong, Mengqiang Zou, Bonan Liu, Junxian Luo, Yiping Wang
Summary: This study demonstrates an optomechanical gas pressure sensor based on suspended graphene with ultrahigh sensitivity and a wide range of potential applications.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Multidisciplinary Sciences
Youyou Lu, Xuan Zhang, Liyan Zhao, Hong Liu, Mi Yan, Xiaochen Zhang, Kenji Mochizuki, Shikuan Yang
Summary: The authors of this study introduced a guiding growth mode using metal-organic framework microparticles as templates during metal electrodeposition. This mode allows for the exclusive growth of metals underneath the microparticles. The fast ion transportation within the nanochannels of the MOF templates induces this guiding growth mode. This method offers a cost-effective approach for fabricating complex metallic surface nanopatterns.
NATURE COMMUNICATIONS
(2023)
Review
Chemistry, Multidisciplinary
Ferran Pujol-Vila, Pau Guell-Grau, Josep Nogues, Mar Alvarez, Borja Sepulveda
Summary: Soft optomechanical systems have the ability to respond reversibly to external stimuli by changing their properties. They combine the optical properties of nanomaterials with the deformability of soft polymers, enabling the development of mechanically tunable optical systems, sensors, and actuators. This review summarizes the recent progress in soft optomechanical systems for mechanical sensing, optical modulation, and light-induced mechanical actuators, and analyzes the limitations and future prospects of these systems.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Fabrice-Roland Lamberti, Ujwol Palanchoke, Thijs Peter Joseph Geurts, Marc Gely, Sebastien Regord, Louise Banniard, Marc Sansa, Ivan Favero, Guillaume Jourdan, Sebastien Hentz
Summary: Nanoelectromechanical resonators have been successfully used for sensing applications, but their small size limits their capture area and analysis time. Multiplexing high-frequency optomechanical resonators provides a solution to these issues and enables the realization of sensors with extremely low detection limits and response time.
Article
Astronomy & Astrophysics
Ryo Tazaki, Christian Ginski, Carsten Dominik
Summary: In this letter, a thorough comparison is presented between near-infrared scattered light of the young planet-forming disk around IM Lup and the light-scattering properties of complex-shaped dust particles, leading to the determination of monomer size, fractal dimension, and size of dust aggregates. The observation results suggest that fractal aggregates with a fractal dimension of 1.5 and a characteristic radius larger than approximately 2 μm best explain the data. The study also reveals that dust composition comprising amorphous carbon can account for both the faint scattered light and the flared disk morphology. All the optical properties of complex dust particles computed in this study are publicly available.
ASTROPHYSICAL JOURNAL LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Masao Akiyoshi, Shunya Koike, Takahiro Shimada, Hiroyuki Hirakata
Summary: In this study, the unique mechanical properties of submicron-sized graphite cantilevers were experimentally demonstrated, showing their ability to accommodate large out-of-plane deformations without fracturing and undergo self-restoration upon unloading. The cantilevers exhibited a nonlinear load-displacement relationship and their deformation was almost completely restored, even after large hysteresis loops during loading-unloading cycles. The results suggest a mechanism for the nonlinear and fully reversible deformation behavior of the specimens.
Article
Engineering, Electrical & Electronic
Shen Liu, Peijing Chen, Junxian Luo, Yanping Chen, Bonan Liu, Hang Xiao, Wenqi Yan, Wei Ding, Zhiyong Bai, Jun He, Yiping Wang
Summary: Monitoring electric current is crucial for the reliable operation of power systems and electronic equipment. This study presents an optomechanical cavity-based resonator for current sensing, which shows high sensitivity, short response time, low power consumption, and a compact structure. It is expected to have applications in high precision current and magnetic field sensing.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Biao Huang, Xinjin Ge, Boris Y. Y. Rubinstein, Xianchun Chen, Lu Wang, Huiying Xie, Alexander M. M. Leshansky, Zhenzhen Li
Summary: By using gas-assisted coflow step-emulsification, uniform and high-production rate micron- and submicron-sized droplets can be produced, which have wide applications in biomedical diagnosis and drug delivery. The method utilizes air as the innermost phase, gradually diffusing out to form oil droplets, following the scaling laws of triphasic step-emulsification for droplet size and oil layer thickness.
MICROSYSTEMS & NANOENGINEERING
(2023)
Article
Optics
Usman A. Javid, Steven D. Rogers, Austin Graf, Qiang Lin
Summary: A method is proposed to extend the dynamic range of microcavity-based sensors significantly beyond the cavity linewidth limit by utilizing the periodic nature of the modulation signal, allowing measurements in the nonlinear transduction regime while maintaining detection sensitivity for weak signals. Experimental results demonstrate a dynamic range over six times larger than the cavity linewidth, far beyond the conventional linear region of operation. This approach will help design microcavity-based sensors with high detection sensitivity and a large dynamic range for practical applications.
LASER & PHOTONICS REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Makoto Uda, Junya Fujiwara, Musashi Seike, Shinji Segami, Shinya Higashimoto, Tomoyasu Hirai, Yoshinobu Nakamura, Syuji Fujii
Summary: This study reports small objects showing both positive and negative phototaxis on the water surface upon near-infrared light irradiation, with the direction controlled by the position of light irradiation. The motion is realized through Marangoni flow generated around the liquid marble induced by position-selective NIR light irradiation. The object can move centimeter distances and has potential for carrying functional cargo and environmental sensing.
Article
Chemistry, Multidisciplinary
Manuela L. Kim, Eugenio H. Otal, Nina R. Sinatra, Kelly Dobson, Mutsumi Kimura
Summary: The use of non-metallic conductive yarns in wearable technologies requires washable fibers that can withstand domestic washing without losing their conductive properties. A one-pot coating with PEDOT:PSS conductive polymers was applied to polyester submicron fibers to improve water resistance and washability. The composites showed similar mechanical properties as the parent fibers, indicating that the coating and post-treatment did not affect overall mechanical property.
Article
Engineering, Biomedical
Wenbo Zhang, Luca Bertinetti, Efe Cuma Yavuzsoy, Changyou Gao, Emanuel Schneck, Peter Fratzl
Summary: Physical forces play a crucial role in the development and function of biological tissues. However, the measurement of osmotic pressures in cell and organ culture systems has been challenging. In this study, novel liposomal sensors based on resonance energy transfer (FRET) were developed to accurately measure osmotic pressures in physiological conditions. These sensors were successfully applied in pre-osteoblastic cell culture systems, paving the way for in situ osmotic pressure sensing in biological cultures.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Optics
Feng Zhou, Yiliang Bao, Ramgopal Madugani, David A. Long, Jason J. Gorman, Thomas W. LeBrun
Summary: The optomechanical accelerometer based on a Fabry-Perot microcavity in a silicon chip achieves the highest reported acceleration resolution to date and can self-calibrate, making it precise and field deployable. It enables accurate conversion from sensor displacement to acceleration over a wide frequency range and can measure acceleration directly in terms of the laser wavelength, serving as intrinsic standards in various measurements.
Article
Thermodynamics
David Astrain, Juliana Jaramillo-Fernandez, Miguel Araiz, Achille Francone, Leyre Catalan, Alejandra Jacobo-Martin, Patricia Alegria, Clivia M. Sotomayor-Torres
Summary: Heat exchangers play a crucial role in optimizing the efficiency of Thermoelectric Generators (TEGs). Heat pipes without fans are preferred due to their robustness, low maintenance, and lack of moving parts. However, these heat exchangers tend to become less efficient under natural convection conditions, leading to a decrease in heat transfer capacity and thermoelectric power production. This study introduces a novel heat exchanger that combines phase change and radiative cooling in a thermoelectric generator, resulting in improved efficiency and increased electrical energy production, especially under natural convection conditions.
APPLIED THERMAL ENGINEERING
(2023)
Article
Physics, Multidisciplinary
G. Arregui, R. C. Ng, M. Albrechtsen, S. Stobbe, C. M. Sotomayor-Torres, P. D. Garcia
Summary: Confining photons in cavities enhances the interaction between light and matter. We have demonstrated how sidewall roughness in air-slot photonic-crystal waveguides can induce Anderson-localized modes with high quality factors and mode volumes below the diffraction limit. The interaction between these disorder-induced optical modes and in-plane mechanical modes is governed by a distribution of coupling rates, leading to mechanical amplification via optomechanical backaction. This study opens up new possibilities for exploring complex systems with mutually coupled degrees of freedom.
PHYSICAL REVIEW LETTERS
(2023)
Article
Polymer Science
Emigdio Chavez-Angel, Ryan C. Ng, Susanne Sandell, Jianying He, Alejandro Castro-Alvarez, Clivia M. Sotomayor Torres, Martin Kreuzer
Summary: Thermal imaging is a challenging and time-consuming task, but it is an important characterization tool in various fields. This study presents a new technique using synchrotron radiation-based Fourier-transform infrared microspectroscopy for remote non-invasive thermal field mapping with high spatial resolution. The results highlight the potential of infrared absorbance for quantitative determination of heat distribution and thermal properties in electronic devices.
Article
Physics, Applied
Laura Mercade, Raul Ortiz, Alberto Grau, Amadeu Griol, Daniel Navarro-Urrios, Alejandro Martinez
Summary: In this study, the researchers achieved the coupling of multiple GHz mechanical modes with similar optomechanical coupling rates to the same optical field using optomechanical crystal cavity engineering. The mechanical modes were located within a full phononic band gap, resulting in ultrahigh mechanical Q factors. The ease of realization using standard silicon nanotechnology makes these cavities highly appealing for applications in both classical and quantum realms.
PHYSICAL REVIEW APPLIED
(2023)
Article
Chemistry, Physical
Jeena Varghese, Reza Mohammadi, Mikolaj Pochylski, Visnja Babacic, Jacek Gapinski, Nicolas Vogel, George Fytas, Bartlomiej Graczykowski
Summary: Cold soldering using supercritical fluids enables uniform strengthening of fragile polymer colloidal crystals at moderate temperatures, with the most efficient soldering found for mid-sized nanoparticles. The particle size and gas-specific response play a crucial role in the soldering process.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Physics, Multidisciplinary
Guilhem Madiot, Ryan C. Ng, Guillermo Arregui, Omar Florez, Marcus Albrechtsen, Soren Stobbe, Pedro D. Garcia, Clivia M. Sotomayor-Torres
Summary: This study investigates the optomechanical generation of coherent phonons at 6.8 GHz frequency, operating at room temperature. By using a suspended 2D silicon phononic crystal cavity with an air-slot, the phononic waveguide is turned into an optomechanical platform that allows for fine control of phonons using light. This development could potentially lead to the advancement of phononic circuitry and coherent manipulation of other solid-state properties.
PHYSICAL REVIEW LETTERS
(2023)
Article
Chemistry, Physical
Arindom Chatterjee, Ananya Banik, Alexandros El Sachat, Jose Manuel Caicedo Roque, Jessica Padilla-Pantoja, Clivia Sotomayor M. Torres, Kanishka Biswas, Jose Santiso, Emigdio Chavez-Angel
Summary: In this study, it is found that the substitution of Ca atoms in Bi2Sr2-xCaxCo2Oy alloys improves the thermoelectric properties by introducing point-defect phonon scattering, while the electronic conductivity and thermopower remain unchanged.
Article
Nanoscience & Nanotechnology
Jeremie Maire, Tomasz Necio, Emigdio Chavez-Angel, Martin F. Colombano, Juliana Jaramillo-Fernandez, Clivia M. Sotomayor-Torres, Nestor E. Capuj, Daniel Navarro-Urrios
Summary: Glass microspheres with diameters ranging from 10 to 60 μm were evaluated for their elastic and optical properties using two complementary contactless techniques. The results showed that the properties of the microspheres were reduced compared to the bulk material due to the fabrication process.
Article
Acoustics
Rafal Bialek, Thomas Vasileiadis, Bartlomiej Graczykowski, Mikolaj Pochylski
Summary: Researchers observed Fano resonances in nonthermal GHz phonons in gold-silicon thin membranes and found that the membrane's asymmetry resulted in the asymmetry of Fano lineshapes.
Article
Nanoscience & Nanotechnology
Jake Dudley Mehew, Marina Y. Timmermans, David Saleta Reig, Stefanie Sergeant, Marianna Sledzinska, Emigdio Chavez-Angel, Emily Gallagher, Clivia M. Sotomayor Torres, Cedric Huyghebaert, Klaas-Jan Tielrooij
Summary: Nanomaterials, particularly carbon nanotubes (CNTs), are promising candidates for applications requiring high thermal conductivity. In this study, the thermal conductivity of free-standing double-walled CNT films was measured using all-optical Raman thermometry, showing significantly enhanced thermal conduction compared to single-walled CNT films. This research contributes to a better understanding of these nanomaterials and their suitability for extreme ultraviolet (EUV) lithography.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Jakub Szewczyk, Visnja Babacic, Adam Krysztofik, Olena Ivashchenko, Mikolaj Pochylski, Robert Pietrzak, Jacek Gapinski, Bartlomiej Graczykowski, Mikhael Bechelany, Emerson Coy
Summary: Aggregation of polydopamine (PDA) at the air/water interface leads to large surface nanometric-thin films. The presence of boric acid and Cu2+ ions significantly impacts the growth process, reducing nanoparticle size and enhancing film efficiency. Additionally, the addition of boric acid improves the mechanical properties of the films, making them exceptionally elastic.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Energy & Fuels
Arindom Chatterjee, Alexandros El Sachat, Ananya Banik, Kanishka Biswas, Alejandro Castro-Alvarez, Clivia M. M. Sotomayor Torres, Jose Santiso, Emigdio Chavez-Angel
Summary: Ca3Co4O9, a p-type thermoelectric material, has attracted attention due to its unique crystal structure and potential in thermoelectric applications. We investigated the effects of high oxygen pressure annealing on Ca3Co4O9 and found that it led to modifications in the defect chemistry, resulting in a decrease in electron hopping probability and a thermal activation-like behavior in thermopower. These findings have significant implications for the design and optimization of thermoelectric materials based on misfit cobaltates.
Article
Chemistry, Multidisciplinary
Emigdio Chavez-Angel, Polychronis Tsipas, Peng Xiao, Mohammad Taghi Ahmadi, Abdalghani H. S. Daaoub, Hatef Sadeghi, Clivia M. Sotomayor M. Torres, Athanasios Dimoulas, Alexandros El Sachat
Summary: Using van der Waals epitaxy, we engineered highly insulating thermal metamaterials based on atomically thin lattice-mismatched Bi2Se3/MoSe2 superlattices and graphene/PdSe2 heterostructures, offering exceptional thermal resistances and ultralow cross-plane thermal conductivities comparable to those of amorphous materials. Experimental data supported by calculations reveal the impact of lattice mismatch, phonon-interface scattering, size effects, temperature, and interface thermal resistance on cross-plane heat dissipation, providing valuable insights into thermal transport characteristics and synthetic methods for large-area van der Waals films.
Article
Quantum Science & Technology
V. Esteso, R. Duquennoy, R. C. Ng, M. Colautti, P. Lombardi, G. Arregui, E. Chavez-Angel, C. M. Sotomayor-Torres, P. D. Garcia, M. Hilke, C. Toninelli
Summary: An understanding of heat transport is crucial for thermal management and fundamental science research. This article introduces a portable nanothermometer based on a molecular quantum system, which allows high sensitivity and noninvasive temperature measurements in nanostructured environments and cryogenic conditions. The performance of this molecular thermometer is validated by estimating the thermal conductivity and demonstrating two-dimensional temperature mapping.
