Article
Biotechnology & Applied Microbiology
Kazuki Niwa, Kaori Hattori, Daiji Fukuda
Summary: This study introduces an application of the TES technique for ultra-sensitive and wide-band wavelength range color imaging in biological samples using CLSM. The results demonstrate the effectiveness of TES as a wide-band spectral photon detector in the field of life sciences, allowing for the successful capture of RGB color images and NIR images of fluorescent cell samples.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Instruments & Instrumentation
Peizhan Li, Jiaqiang Zhong, Wen Zhang, Zheng Wang, Kangmin Zhou, Wei Miao, Yuan Ren, Jing Li, Qijun Yao, Shengcai Shi
Summary: In this work, a titanium-based optical transition-edge sensor (TES) was developed, which has high detection efficiency and energy resolution, making it suitable for applications such as quantum information, astronomy, and biological spectral imaging. The TES is embedded in an optical cavity consisting of dielectric mirror and antireflection coating, allowing it to detect single photons without any wavelength multiplexing components, and achieving an energy resolution of 0.24 eV and a wavelength resolution of 64 nm.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2023)
Article
Chemistry, Analytical
Pei-Sa Ma, Hong-Fan Zhang, Xingxiang Zhou
Summary: By measuring the intensity variation of the reflected wave, we can accurately align an optical fiber to a quantum photon detector. This novel technique is simple, cost-effective, and accessible to a wider community.
Article
Physics, Multidisciplinary
Yue Geng, Pei-Zhan Li, Jia-Qiang Zhong, Wen Zhang, Zheng Wang, Wei Miao, Yuan Ren, Sheng-Cai Shi
Summary: The study introduces a method based on a two-fluid model to extract important parameters of optical TESs, showing good qualitative agreement and suitability for further optimization of optical TESs.
Review
Chemistry, Multidisciplinary
Federico Paolucci, Nadia Ligato, Gaia Germanese, Vittorio Buccheri, Francesco Giazotto
Summary: This article reviews the design and experimental realization of two bias-current-tunable sensors based on one dimensional fully superconducting Josephson junctions: the nanoscale transition edge sensor (nano-TES) and the Josephson escape sensor (JES. The nano-TES promises a state-of-the-art noise equivalent power (NEP) of about 5x10(-20) W/root Hz, while the JES active region is expected to show an unprecedented NEP of the order of 10(-25) W/root Hz, making them strong candidates to push radio astronomy to the next level.
APPLIED SCIENCES-BASEL
(2021)
Article
Physics, Applied
Yeru Wang, Yajie Liang, Jiao Ding, Naihui Chen, Yanling Chen, Wei Cui, Rui Huang, Chengzhe Li, Fajun Li, Jiejia Liu, Hai Jin, Guole Wang, Sifan Wang, Yuning Zhang
Summary: In this study, we investigated the correlations between stress and film deposition parameters to minimize stress in sputtered molybdenum films for fabricating transition-edge sensor devices. The results showed that the tensile stress of the film samples decreased at low and high Ar pressure, suggesting the presence of two physical mechanisms.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Ryan Smith, Masashi Ohno, Yuki Mitsuya, Yoshitaka Miura, Hiroyuki Takahashi, Takahiro Kikuchi, Satoshi Kohjiro, Chiko Otani, Shintaro Ikuine
Summary: To address the challenges of mounting gamma-ray absorbers on a single gold bump post, researchers have developed a new method using 4 gold bump posts to improve structural stability. This method was successfully applied to create a TES array coupled with a Sn absorber for gamma-ray spectroscopy, showing promising results in terms of signal rise time and energy resolution. This new approach has the potential to advance the development of multi-pixel TES arrays using bulk metal for gamma-ray absorbers.
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2021)
Article
Optics
Yue Geng, Jia-Qiang Zhong, Pei-Zhan Li, Wen Zhang, Zheng Wang, Kang-Min Zhou, Yuan Ren, Wei Miao, Qi-Jun Yao, Sheng-Cai Shi
Summary: This paper presents the development of TES-based superconducting single-photon detectors with various dimensions. By optimizing the TES dimensions and critical temperature, high system detection efficiency and energy resolution can be achieved, paving the way for high-performance single-photon detectors in the telecommunication band.
JOURNAL OF INFRARED AND MILLIMETER WAVES
(2022)
Article
Chemistry, Multidisciplinary
Yen-Hui Lin, Chia-Ju Chen, Nitin Kumar, Ta-Yu Yeh, Tzu-Hsuan Lin, Stefan Bluegel, Gustav Bihlmayer, Pin-Jui Hsu
Summary: The artificial fabrication of a monolayer Kagome material provides a promising opportunity to explore exceptional quantum states and phenomena in low dimensionality. By studying a monatomic Ni Kagome lattice grown on Pb(111), sawtooth edge structures with distinct heights due to subsurface Ni atoms and the manifestation of characteristic phase-destructive flat bands have been revealed. Despite the disappearance of the magnetic moment of Ni atoms due to charge transfer, the superconducting gap on the Ni Kagome lattice is slightly enhanced.
Article
Nanoscience & Nanotechnology
Feifei Wang, Fuqiang Ren, Zhuoran Ma, Liangqiong Qu, Ronan Gourgues, Chun Xu, Ani Baghdasaryan, Jiachen Li, Iman Esmaeil Zadeh, Johannes W. N. Los, Andreas Fognini, Jessie Qin-Dregely, Hongjie Dai
Summary: By studying light scattering and utilizing new materials technology, the imaging depth of high-resolution optical microscopy in live mammals can be improved. This study demonstrates single-photon excitation fluorescence imaging in the NIR-IIc range, achieving the longest single-photon excitation and emission wavelengths to date for in vivo imaging of mice.
NATURE NANOTECHNOLOGY
(2022)
Article
Optics
Ya-Nan Zhao, Hong-Yun Hou, Jia-Cheng Han, Hong-Chao Liu, Su-Heng Zhang, De-Zhong Cao, Bao-Lai Liang
Summary: The study proposes a high-efficiency single-pixel imaging scheme that integrates time-correlated single-photon counting with time-division multiplexing to acquire full-color images and reconstruct high-quality images in a single measurement. Strategies such as single-step measurement, high-speed projection, and under-sampling can further improve imaging efficiency.
Article
Nanoscience & Nanotechnology
Songtian S. Zhang, Anjaly Rajendran, Sang Hoon Chae, Shuai Zhang, Tsai-Chun Pan, James C. Hone, Cory R. Dean, D. N. Basov
Summary: In this study, the phase transitions of a few-layer thick microcrystal of 1T-TaS2 were investigated using scanning near-field optical microscopy. An abrupt metal-to-insulator transition was found in this few-layer limit, contrasting previous transport studies on thin 1T-TaS2 and spatially resolved studies on non-encapsulated samples, which found gradual and spatially inhomogeneous transitions.
Article
Chemistry, Physical
Michaela Sojkova, Igor Pis, Jana Hrda, Tatiana Vojtekova, Lenka Pribusova Slusna, Karol Vegso, Peter Siffalovic, Peter Nadazdy, Edmund Dobrocka, Milos Krbal, Paul J. Fons, Frans Munnik, Elena Magnano, Martin Hulman, Federica Bondino
Summary: It has been found that lithium can promote the epitaxial growth and horizontal alignment of MoS2, and lithiation can cause a vertical-to-horizontal reorientation in vertically aligned MoS2 films. The horizontally aligned Li-doped MoS2 exhibits good long-term stability and preserved chemical composition.
CHEMISTRY OF MATERIALS
(2023)
Article
Physics, Applied
W. Zhang, Z. Wang, P. Z. Li, J. Q. Zhong, Q. X. Ma, Z. F. Feng, K. M. Zhou, W. Miao, Y. Ren, Q. J. Yao, J. Li, S. C. Shi
Summary: This study proposes a method to adjust the critical temperature (TC) of superconducting transition-edge sensors (TESs) and investigates the variation of TC under different conditions. By baking in air, the TC of Ti films is inversely proportional to the logarithm of baking time and directly proportional to the square of baking temperature. XPS analysis reveals that oxidation and oxygen diffusion contribute to the change in TC of Ti films.
JOURNAL OF LOW TEMPERATURE PHYSICS
(2023)
Article
Physics, Applied
Kaori Hattori, Toshio Konno, Yoshitaka Miura, Sachiko Takasu, Daiji Fukuda
Summary: This study tested an Au/Ti (10/20 nm) bilayer TES that achieved a high energy resolution by lowering the critical temperature Tc to 115 mK. The results have important implications for improving the energy resolution in biological imaging and microscopic spectroscopy.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Daiji Fukuda
IEICE TRANSACTIONS ON ELECTRONICS
(2019)
Article
Engineering, Electrical & Electronic
Ryo Kobayashi, Kaori Hattori, Shuichiro Inoue, Daiji Fukuda
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2019)
Article
Physics, Applied
N. Nakada, K. Hattori, Y. Nakashima, F. Hirayama, R. Yamamoto, H. Yamamori, S. Kohjiro, A. Sato, H. Takahashi, D. Fukuda
JOURNAL OF LOW TEMPERATURE PHYSICS
(2020)
Article
Physics, Applied
Toshio Konno, Sachiko Takasu, Kaori Hattori, Daiji Fukuda
JOURNAL OF LOW TEMPERATURE PHYSICS
(2020)
Article
Nanoscience & Nanotechnology
K. Hattori, R. Kobayashi, S. Takasu, D. Fukuda
Article
Chemistry, Physical
Yuma Ikeda, Masanobu Tanaka, Ryo Nishihara, Yuki Hiruta, Daniel Citterio, Koji Suzuki, Kazuki Niwa
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2020)
Article
Instruments & Instrumentation
Yuri Nakazawa, Kenji Godo, Kazuki Niwa, Tatsuya Zama, Yoshiki Yamaji, Shinya Matsuoka
Article
Biochemical Research Methods
Ryo Nishihara, Kazuki Niwa, Tatsunosuke Tomita, Ryoji Kurita
BIOCONJUGATE CHEMISTRY
(2020)
Article
Biotechnology & Applied Microbiology
Kazuki Niwa, Kaori Hattori, Daiji Fukuda
Summary: This study introduces an application of the TES technique for ultra-sensitive and wide-band wavelength range color imaging in biological samples using CLSM. The results demonstrate the effectiveness of TES as a wide-band spectral photon detector in the field of life sciences, allowing for the successful capture of RGB color images and NIR images of fluorescent cell samples.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Physics, Applied
Kaori Hattori, Toshio Konno, Yoshitaka Miura, Sachiko Takasu, Daiji Fukuda
Summary: This study tested an Au/Ti (10/20 nm) bilayer TES that achieved a high energy resolution by lowering the critical temperature Tc to 115 mK. The results have important implications for improving the energy resolution in biological imaging and microscopic spectroscopy.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
(2022)
Article
Physics, Applied
Takayuki Numata
Summary: A method for estimating the beam size of mid-infrared lasers is proposed in this study. By using a silicon-based photonic semiconductor image sensor, the distribution of thermal carriers in the laser beam can be captured and visualized, allowing for the estimation of the beam diameter. Experimental results demonstrated the effectiveness of the proposed method.
APPLIED PHYSICS EXPRESS
(2022)
Article
Chemistry, Multidisciplinary
Ryo Nishihara, Yoshiki Kihara, Kazuki Niwa, Masahiro Mimura, Shunsuke Tomita, Ryoji Kurita
Summary: The enzymatic luminescence reactions of fireflies are accelerated by approximately 10% in the presence of biomolecular condensates containing a positively charged peptide and ATP. This acceleration is attributed to the enrichment of reaction elements, local pH changes, and the promotion of inhibitory intermediate dissociation.
CHEMICAL COMMUNICATIONS
(2022)
