Review
Optics
K. Monisha, K. Suresh, Sajan D. George
Summary: The conversion of light to heat via the photothermal effect has been used to evaluate thermo-optic properties of materials, but recently it has also been used for the manipulation of colloidal objects and living cells. Optothermal manipulation techniques utilize lower optical power and can manipulate particles over a long range compared to conventional optical tweezers. This review discusses the working mechanisms, concepts, and applications of recently established optothermal techniques, as well as the physical mechanisms behind the optical manipulation.
LASER & PHOTONICS REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Won-Geun Kim, Vasanthan Devaraj, Younghwan Yang, Jong-Min Lee, Ji Tae Kim, Jin-Woo Oh, Junsuk Rho
Summary: The study focuses on metallic nanoparticles supporting localized surface plasmons and their self-assembled clustering technique, proposing a micropipette-based self-assembly method for fabricating three-dimensional structures composed of colloidal clusters. Experimental demonstrations of the optical properties of these structures, as well as theoretical demonstrations of their localized surface plasmon resonance and thermo-plasmonic properties, were carried out.
Article
Chemistry, Multidisciplinary
Tianshu Ma, Yidan An, Zhenhai Yang, Zhenhai Ai, Yuqi Zhang, Changlei Wang, Xiaofeng Li
Summary: Perovskite-based single-junction and tandem solar cells are gaining attention for their high power conversion efficiency and low fabrication cost, but their commercialization is challenging due to inadequate thermal management. This study uses opto-electro-thermal simulation to analyze energy conversion and heat mechanisms in the devices and proposes thermal manipulation strategies to reduce heat generation and device temperature. Through optimization, the predicted temperature and possible power conversion efficiency of the considered solar cells are significantly improved. A tandem solar cell with a record-breaking PCE is fabricated based on the simulation results. This study provides an effective approach to achieve higher-performance perovskite solar cells with lower operation temperatures.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Yuan Wan, Hongwen Li, Zhaozhong Meng, Jing Lyu, Xinyu Zhang
Summary: This study investigates the active manipulation of Fano resonance in gold plasmonic nanodevices with graphene at visible and near-IR wavelengths. Results show that the introduction of graphene significantly changes the resonance wavelength and increases the figure of merit of the system, making it suitable for high sensitivity applications.
Article
Optics
Ni Zhang, Xinrui Lei, Jiachen Liu, Qiwen Zhan
Summary: This research proposes a continuous manipulation method for the topology of graphene plasmon skyrmions, which can be achieved by adjusting the electrotunable properties of graphene. The transformation of skyrmion number from 1 to 0.5 is evident, demonstrating the direct manipulation of graphene plasmon skyrmions. This work suggests a feasible way to flexibly control the topology of an optical skyrmionic field, which can be used for novel integrated photonic devices in the future.
Article
Chemistry, Physical
Zoe Scott, Shafi Muhammad, Tigran V. Shahbazyan
Summary: This paper presents an analytical model describing the transition to a strong coupling regime for an ensemble of emitters coupled to a localized surface plasmon. The model involves two distinct mechanisms involving collective states of emitters interacting with the plasmon mode. The first mechanism is the near-field coupling between the bright collective state and the plasmon mode, while the second mechanism is the Fano interference between the plasmon dipole moment and the plasmon-induced dipole moment of the bright collective state. These mechanisms strongly affect the shape of scattering spectra.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Optics
Chung-Ting Chou Chao, Yuan-Fong Chou Chau
Summary: We propose a susceptible multichannel plasmonic sensor for sensing refractive index (RI) and temperature media. The designed structure consists of an elliptical-shaped ring resonator and four metal nanorods side-coupled to two separated metal-insulator-metal waveguides. The structure supports five channels of Fano resonance modes, providing excellent sensing performance with maximum sensitivity values of 4500 nm/RIU for RI sensing and 1.00 nm/degrees C for temperature sensing.
Article
Biotechnology & Applied Microbiology
Anais Vitorino Carvalho, Christelle Hennequet-Antier, Aurelien Brionne, Sabine Crochet, Justine Jimenez, Nathalie Courousse, Anne Collin, Vincent Coustharn
Summary: TM had minimal effects on gene expression regulation in hypothalamus of 35 days-old Japanese quails. However, the effects of heat challenge (HC) revealed alterations in gene expression with sex-specific and common functions affected. These effects were most pronounced in TM females, suggesting potential enhancement of gene responses under challenging conditions.
Article
Chemistry, Multidisciplinary
Marko M. Petric, Malte Kremser, Matteo Barbone, Anna Nolinder, Anna Lyamkina, Andreas Stier, Michael Kaniber, Kai Mueller, Jonathan J. Finley
Summary: The combination of nanoplasmonic systems and optically active two-dimensional materials allows for the exploration and control of light-matter interactions at extreme subwavelength length scales. This study investigates the characteristics of a MoSe2 monolayer on individual gold dipole nanoantennas at room and cryogenic temperatures. The results reveal tuning of the dipolar resonance relative to the exciton and a coupling constant between exciton and plasmon, demonstrating active control of the coupling by varying the excitation light polarization.
Article
Physics, Applied
E. Mejia, Y. Qian, S. A. Safiabadi Tali, J. Song, W. Zhou
Summary: The study demonstrates that fixed-size tapered nanolaminate nanoantennas can achieve wide double-resonance spectral tunability by changing the metal-to-insulator thickness ratio. Experimental results show that these antennas can support tunable resonant wavelengths and exhibit great performance in terms of electromagnetic responses.
APPLIED PHYSICS LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Jingwei Lv, Debao Wang, Chao Liu, Jianxin Wang, Lin Yang, Wei Liu, Qiang Liu, Haiwei Mu, Paul K. Chu
Summary: In this study, a nanoantenna with Fano response was designed as a refractive index sensor to enhance surface-enhanced Raman scattering (SERS) in the visible light spectrum. The investigation of the scattered radiation and field-enhanced interactions revealed the dependence of Fano resonance on the size, shape, and nature of the materials in the hybrid nanoantenna. The results confirmed the design concept and demonstrated the near-field enhancement, showing potential for high-performance nanoantennas with enhanced optical sensing and SERS properties.
Article
Multidisciplinary Sciences
Sherif M. Sherif, Mohamed A. Swillam
Summary: We propose a CMOS compatible silicon-based sensor for mid infrared sensing, which exhibits high sensitivity, distinct Fano resonance, and limited insertion loss.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Kiumars Aryana, Hyun Jung Kim, Cosmin-Constantin Popescu, Steven Vitale, Hyung Bin Bae, Taewoo Lee, Tian Gu, Juejun Hu
Summary: Reconfigurable or programmable photonic devices have become integral in optical systems and play a crucial role in applications ranging from data communication to space exploration. Chalcogenide-based phase-change materials have shown promise in reconfigurable photonics due to their large optical contrast. This paper highlights three important aspects that impact the thermal and phase transition behavior of these devices: enthalpy of fusion, heat capacity change upon glass transition, and thermal conductivity of liquid-phase PCMs. The findings offer insights for accurate modeling and development of more efficient reconfigurable optics.
Article
Optics
Babak Moeinimaleki, Hassan Kaatuzian, Abdolber-Mallah Livani
Summary: In this paper, an optical method using a plasmonic refractive index nano-sensor is proposed for measuring the mass density of polarizable gases. The method utilizes the Lorentz-Lorenz theoretical index-density relation to interpret the changes in gas refractive index and density. The proposed plasmonic mass density sensor shows high sensitivity to methane gas in the visible light region. This sensor can be integrated with photonic circuits for gas sensing purposes.
Article
Chemistry, Multidisciplinary
Feifei Zhang, Jerome Plain, Davy Gerard, Jerome Martin
Summary: This study numerically investigates the influence of surface roughness on the plasmonic properties of aluminum nanodisks, revealing different effects on the out-of-plane quadrupolar mode and in-plane dipolar mode. The results show that increasing surface roughness significantly dampens the quadrupolar mode while broadening and redshifting the dipolar resonance. These effects are attributed to the decoherence and dissipation of electronic oscillations due to surface roughness, and are experimentally confirmed by characterizing the optical properties of periodic aluminum nanodisk arrays.
Article
Physics, Multidisciplinary
C. L. Baldwin, C. R. Laumann, A. Pal, A. Scardicchio
PHYSICAL REVIEW LETTERS
(2017)
Article
Physics, Multidisciplinary
C. L. Baldwin, B. Swingle
Article
Physics, Mathematical
Saumya Shivam, Christopher L. Baldwin, John Barton, Mehran Kardar, S. L. Sondhi
Summary: This article explores Eigen's model of quasi-species, finding a close relationship between the evolution of population vectors and quantum spins. By employing multiple perspectives and tools from interacting quantum systems, the study examines the growth and collapse of realistic viral populations, obtaining consistent results across all approaches used.
JOURNAL OF STATISTICAL PHYSICS
(2021)
Article
Physics, Multidisciplinary
Lucas T. Brady, Christopher L. Baldwin, Aniruddha Bapat, Yaroslav Kharkov, Alexey Gorshkov
Summary: Quantum annealing (QA) and quantum approximate optimization algorithm (QAOA) are two special cases for controlling quantum state energy minimization. Analytical application of optimal control theories showed that optimal procedures have a mix of pulsed (QAOA-like) structure at beginning and end, and smooth annealing structure in middle. Simulation results on Ising models support the theory, suggesting bang-anneal-bang protocols are more common than previously thought and provide guidelines for experimental implementations.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
Minh C. Tran, Andrew Y. Guo, Christopher L. Baldwin, Adam Ehrenberg, Alexey Gorshkov, Andrew Lucas
Summary: The Lieb-Robinson theorem establishes finite information propagation velocity in quantum systems on a lattice with nearest-neighbor interactions. In quantum systems with power-law interactions, the speed limits of information propagation have been definitively answered for all exponents a > 2d and spatial dimensions d. Information propagation takes at least time r(min{1,a-2d}) to cover a distance r, with recent state transfer protocols asserting this boundary, concluding a long quest for optimal Lieb-Robinson bounds in quantum information dynamics with power-law interactions.
PHYSICAL REVIEW LETTERS
(2021)
Article
Optics
C. L. Baldwin, P. Bienias, A. Gorshkov, M. J. Gullans, M. Maghrebi
Summary: This study demonstrates the instability of long-wavelength density fluctuations in one-dimensional condensates under specific loss conditions, revealing the underlying dynamical mechanism of this anomalous behavior.
Article
Physics, Fluids & Plasmas
C. L. Baldwin, S. Shivam, S. L. Sondhi, M. Kardar
Summary: The deep connection between ground states of transverse-field spin systems and evolving viral populations is explored, revealing that minor differences between the two models lead to significant consequences in phase transitions and critical exponents. A more general class of models is introduced to encompass both cases, and exact solutions are obtained in a mean-field limit. Numerical results for one-dimensional chains with power-law interactions are presented, showing that treating spin models as population-dynamical models can lead to unexpected new physics and insights.
Article
Materials Science, Multidisciplinary
Mauro Schiulaz, Christopher L. Baldwin, Chris R. Laumann, Boris Z. Spivak
Article
Materials Science, Multidisciplinary
C. L. Baldwin, C. R. Laumann
Article
Materials Science, Multidisciplinary
C. L. Baldwin, C. R. Laumann, B. Spivak
Article
Materials Science, Multidisciplinary
C. L. Baldwin, C. R. Laumann, A. Pal, A. Scardicchio