Article
Chemistry, Multidisciplinary
Hailong Fu, Ke Huang, Kenji Watanabe, Takashi Taniguchi, Morteza Kayyalha, Jun Zhu
Summary: In this experiment, Fabry-Perot interferometers were constructed using a split-gate design and measurements of Aharonov-Bohm oscillations were presented. The velocity of the edge state was found to be approximately 6 x 10(4) m/s at filling factor nu = 2 and decreased with increasing filling factor. The dc bias and temperature dependence of the interference suggested electron-electron interaction induced decoherence mechanisms. These results pave the way for exploring fractional and non-Abelian braiding statistics in this promising device platform.
Article
Multidisciplinary Sciences
Igor E. Protsenko, Alexander V. Uskov
Summary: In this study, the spectra of small Fabry-Perot interferometers (FPIs) of similar size to the wavelength are investigated when excited by a quantum field from a nano-LED or a laser. A convenient model for the interaction between the FPI and the quantum field is formulated, and novel explicit expressions for the field and photon number fluctuation spectra inside and outside the FPI are provided. The results show significant differences in spectra for different fields and note the presence of asymmetries. Additionally, negative and oscillating second-order time auto-correlation functions are calculated for the FPI field under certain conditions.
Article
Engineering, Electrical & Electronic
Chen Zhu, Ruimin Jie, Osamah Alsalman, Hongkun Zheng, Wassana Naku, Bo Liu, Lingmei Ma
Summary: This article presents a multi-point curvature sensor system based on optical fiber Fabry-Perot interferometric sensor devices and microwave photonics interrogation technique. The system can measure curvature at multiple points by encoding the changes in fringe contrast of the sensor devices. It is cost-effective and suitable for applications in structural health monitoring and human-machine interface sensing.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Serkan Sirt, Emre Iren, Deniz Eksi, Aylin Yildiz Tunali, Eren Guvenilir, Enver M. Kendirlik, Nissim Ofek, Vladimir Umansky, Stefan Ludwig, Afif Siddiki
Summary: Here we discuss the effect of topology on the quantum Hall effect, considering the direct Coulomb interactions and two distinct geometries. We show that the local distributions and compressibility of the electron number density, electrochemical potential, and current depend on electron-electron interactions. Our experimental results contradict the standard explanation and confirm the presence of incompressible regions in a compressible state.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2023)
Article
Optics
Geunweon Lim, Jinho Lee, Junha Jung, Ju Han Lee
Summary: In this study, a fiber-optic modulation device based on Fabry-Perot interferometer (FPI) was successfully fabricated using the photo-thermal effect and high thermal conductivity of MXene V2C. The device achieved a high pump-to-phase conversion efficiency and extinction ratio, and showed good stability.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Marjan Ghasemi, Jeongmin Oh, Sunghoon Jeong, Mingyu Lee, Saeed Bohlooli Darian, Kyunghwan Oh, Jun Ki Kim
Summary: We have developed a fiber-optic sensor based on the Fabry-Perot interferometer principles for the detection of blood clot formation. The sensor consists of two types of sensor tips: a tapered fiber and an ultra-compact blood FPI on a single-mode fiber. The sensor's performance was evaluated by introducing varying quantities of thrombin reagent into the blood and analyzing the resulting clot-formation-indicating spectrum shifts.
Article
Physics, Applied
Zhifeng Tong, Lina Wang, Tingting Duan, Youfu Geng, Xuejin Li, Duo Yi, Xueming Hong
Summary: This study proposes a high-resolution optical fiber Fabry-Perot (FP) temperature sensor based on an exposed-core microstructured optical fiber (ECF) coated with a ultraviolet curing polymer adhesive. By expanding the input light beam with a small piece of multimode fiber (MMF) spliced in front of ECF, a parallel polymer/air double-cavity FP is constructed in a single-mode fiber (SMF)-MMF-ECF-SMF structure. The interference signal is analyzed using a mobilized demodulation module based on phase demodulation method. The experimental results show that the sensor has a temperature sensitivity of 30.8 degrees Celsius(-1) and a resolution of up to 1.6 x 10(-4) degrees Celsius in the temperature range of 20-50 degrees Celsius, achieving high-resolution temperature measurement. Additionally, a double-cavity self-reference differential phase modulation method is explored in the proposed parallel double-cavity FP to alleviate wavelength uncertainty and improve stability.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Astronomy & Astrophysics
Wenbo Li, Yiding Chen, Libo Liu, Trond S. Trondsen, Craig Unick, Devin Wyatt, Baiqi Ning, Guozhu Li, Cong Huang, Sipeng Yang, Huijun Le
Summary: The Fabry-Perot interferometer system was used to observe thermospheric winds at Mohe, China in July 2019. The observations revealed diurnal and seasonal variations in thermospheric winds, with a model established based on the data. Comparison with HWM14 showed overall consistency, but differences were found when comparing observations with Kelan FPI data.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
(2021)
Article
Nanoscience & Nanotechnology
Thi-Nhung Pham, Sebastien Guerrault, Cedric Ayela
Summary: This study introduces a Fabry-Perot interferometer (FPI) based on a polymer microtip for measuring water content in gas and liquid phases. The polymer tip made from pentaerythritol triacrylate (PETA) is fabricated at the end of an optical fiber through self-guiding photopolymerization. The FPI sensor demonstrates high sensitivity to water content changes and shows negligible influence from temperature variations.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Optics
Hongwei Liang, Yu Sun, Zhen Huang, Chunlei Jiang, Zihua Zhang, Lingling Kan
Summary: A novel reconstruction method for nanometer micro-displacement of Fabry-Perot (F-P) interference is proposed in this study, utilizing Hilbert transforms and tangent operations. The validity of the algorithm and structure is verified through simulation and experimental measurements, with results showing a maximum relative error of 4.9%.
CHINESE OPTICS LETTERS
(2021)
Article
Optics
Monserrat Alonso-Murias, David Monzon-Hernandez, Enrique Antonio-Lopez, Axel Schulzgen, Rodrigo Amezcua-Correa, Joel Villatoro
Summary: A nano-displacement sensing method based on an extrinsic hybrid fiber Fabry-Perot interferometer is proposed, achieving a resolution of 0.47 nm. By adjusting the optical path length difference between the air cavity and glass cavity, an interference spectra envelope with a larger period can be generated.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Lingfei Zhao, Ethan G. Arnault, Trevyn F. Q. . Larson, Zubair Iftikhar, Andrew Seredinski, Tate Fleming, Kenji Watanabe, Takashi Taniguchi, Francois Amet, Gleb Finkelstein
Summary: The vanishing band gap of graphene has posed challenges for creating high-quality quantum point contacts. However, recent advances have allowed split-gate QPCs to operate using the highly resistive v = 0 state. Researchers have developed a simple method of fabricating QPCs by etching a narrow trench in the graphene sheet, separating the conducting channel from self-aligned graphene side gates. This technique has enabled the creation and study of a quantum Hall interferometer.
Article
Chemistry, Multidisciplinary
Tiago Paixao, Ana Sofia Nunes, Joerg Bierlich, Jens Kobelke, Marta S. Ferreira
Summary: An optical fiber tip sensor based on a Fabry-Perot interferometer is developed for ethanol detection in the gas phase. The sensor achieves interaction between light and ethanol gas molecules through fusion splicing a suspended core fiber with a single mode fiber. The sensor exhibits linear response and high sensitivity, making it a potential alternative for detecting gaseous ethanol in food and beverages.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Electrical & Electronic
Rui Pan, Wenlong Yang, Linjun Li, Yuqiang Yang, Xiaoyang Yu, Jianying Fan, Shuang Yu, Yanling Xiong, Lijie Zhang
Summary: The novel high sensitivity all-fiber Fabry-Perot interferometer (FPI) gas refractive index (RI) sensor based on hole-assisted one-core fiber (HAOCF) and Vernier effect demonstrates significant improvement in sensitivity by utilizing a combination of air-cavity FPI and silica-cavity FPI. The sensor is capable of monitoring RI changes of air with different pressures and offers potential applications in gas composition detection, medical diagnostics, and environmental monitoring.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Ghulam Abbas Lashari, Farhan Mumtaz, Sohail Ahmed
Summary: The study proposed and investigated a strain sensor based on Vernier Effect with high sensitivity, low temperature cross-sensitivity, simple fabrication, and low cost, suitable for applications in engineering fields such as structural health monitoring and civil engineering.
OPTICAL FIBER TECHNOLOGY
(2022)
Article
Physics, Multidisciplinary
Thorsten B. Wahl, Arijeet Pal, Steven H. Simon
News Item
Physics, Multidisciplinary
Steven H. Simon
Article
Physics, Multidisciplinary
Glenn Wagner, Dung X. Nguyen, Dmitry L. Kovrizhin, Steven H. Simon
PHYSICAL REVIEW LETTERS
(2019)
Article
Physics, Multidisciplinary
Glenn Wagner, Dung X. Nguyen, Steven H. Simon
PHYSICAL REVIEW LETTERS
(2020)
Article
Physics, Multidisciplinary
Felix Flicker, Steven H. Simon, S. A. Parameswaran
Article
Physics, Multidisciplinary
Steven H. Simon, Bernd Rosenow
PHYSICAL REVIEW LETTERS
(2020)
Article
Physics, Multidisciplinary
Yves H. Kwan, Yichen Hu, Steven H. Simon, S. A. Parameswaran
Summary: The study reveals the topological features of neutral particle-hole pair excitations and their impact on the bound states in correlated QAH insulators. This results in the formation of topological exciton bands with robust features. The research also applies these ideas to broken-symmetry spontaneous QAH insulators in magic-angle twisted bilayer graphene with substrate alignment.
PHYSICAL REVIEW LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Steven H. Simon, Mark S. Rudner
Article
Materials Science, Multidisciplinary
Glenn Wagner, Dung X. Nguyen, Steven H. Simon
Article
Materials Science, Multidisciplinary
Dung X. Nguyen, Glenn Wagner, Steven H. Simon
Article
Materials Science, Multidisciplinary
Steven H. Simon, Matteo Ippoliti, Michael P. Zaletel, Edward H. Rezayi
Article
Materials Science, Multidisciplinary
Glenn Wagner, Dung X. Nguyen, Dmitry L. Kovrizhin, Steven H. Simon
Article
Materials Science, Multidisciplinary
J-R Soh, F. de Juan, M. G. Vergniory, N. B. M. Schroeter, M. C. Rahn, D. Y. Yan, J. Jiang, M. Bristow, P. A. Reiss, J. N. Blandy, Y. F. Guo, Y. G. Shi, T. K. Kim, A. McCollam, S. H. Simon, Y. Chen, A. Coldea, A. T. Boothroyd
Article
Physics, Multidisciplinary
Henrik Schou Roising, Roni Ilan, Tobias Meng, Steven H. Simon, Felix Flicker
Article
Materials Science, Multidisciplinary
Abishek K. Kulshreshtha, Arijeet Pal, Thorsten B. Wahl, Steven H. Simon