Article
Thermodynamics
Kaili Sun, Min Sun, Youqiao Ma, Yuechun Shi, Zhanghua Han
Summary: Scientists have been pursuing narrow bandwidth and highly efficient mid-infrared (MIR) thermal emitters with low manufacturing cost and simple geometries. However, conventional MIR thermal emitters based on metallic metamaterials suffer from large bandwidths due to dissipations losses. In this study, researchers demonstrated MIR thermal emitters with ultra-narrow bandwidth by utilizing the quasi bound-state-in-the-continuum mode supported by an all-dielectric metasurface structure. The experimental results showed that a bandwidth around 80 nm in the MIR can be achieved, one order of magnitude narrower than those achieved with metallic metamaterials.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2023)
Article
Optics
Dekang Chen, Stephen D. March, Andrew H. Jones, Yang Shen, Adam A. Dadey, Keye Sun, J. Andrew McArthur, Alec M. Skipper, Xingjun Xue, Bingtian Guo, Junwu Bai, Seth R. Bank, Joe C. Campbell
Summary: The development of mid-wave infrared photonics has led to a demand for high-performance photodetectors operating in this range. However, the high dark current in narrow-bandgap materials limits the signal-to-noise ratio of mid-wave infrared detection. To tackle this challenge, an avalanche photodiode design using photon-trapping structures is introduced, which enhances quantum efficiency and reduces dark current. The achieved results show significantly improved performance compared to previous photodiodes, with high quantum efficiency, low dark current, increased bandwidth, and gain-bandwidth product.
Article
Nanoscience & Nanotechnology
Yongkang Gong, Kang Li, Nigel Copner, Heng Liu, Meng Zhao, Bo Zhang, Andreas Pusch, Diana L. Huffaker, Sang Soon Oh
Summary: The proposed electrically controlled thermal emitter based on nanophotonic engineering with layered metamaterials demonstrates significantly enhanced emissivity in the broad infrared wavelengths and optical features of a strong photonic bandgap. The electrically driven metamaterial devices are optically and thermally stable at temperatures up to 800K with an electro-optical conversion efficiency of approximately 30%, providing a novel alternative for cost-effective, compact, low glare, and energy-efficient infrared heating.
Article
Chemistry, Multidisciplinary
Po-Liang Chen, Tian-Yun Chang, Pei-Sin Chen, Alvin Hsien-Yi Chan, Adzilah Shahna Rosyadi, Yen-Ju Lin, Pei-Yu Huang, Jia-Xin Li, Wei-Qing Li, Chia-Jui Hsu, Neil Na, Yao-Chang Lee, Ching-Hwa Ho, Chang-Hua Liu
Summary: This study presents a two-terminal mid-infrared (mid-IR) emitter that allows control of spectral characteristics and polarization states by tuning the polarity of the applied bias. The emitter consists of back-to-back p-n junctions formed by stacking anisotropic light-emitting materials (black phosphorus and black arsenic-phosphorus with MoS2). The emissions of the two junctions exhibit distinct spectral ranges and polarization directions, and can be independently activated depending on the polarity of the applied bias.
Article
Energy & Fuels
Peiyu Tan, Feifei Lu, Yuge Han
Summary: A new device with adjustable reflective capabilities in the mid-IR is elaborated by optimizing the reflectance performance through specific material combinations and mechanical perforating method. The study shows that adopting thin PEDOT/PSS on a non-porous substrate can achieve large amplitude reflectance regulation, and the mechanical perforating method addresses the issue of ion transport, enhancing the performance of the device.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Environmental Sciences
Mikhail Zhizhin, Christopher Elvidge, Alexey Poyda
Summary: In this paper, a new approach is presented for subpixel infrared emitter detection in VIIRS MWIR bands M12-M13 at night using scattergrams of M12 versus M13 radiances. A diagonal feature is observed in the scattergrams, which is universally found in night-time VIIRS data worldwide. The presence of this diagonal is due to the close spacing in the bandpass centers of the VIIRS' two MWIR bands, and it is attributed to highly correlated emissivities of M12 and M13 with background objects. The VIIRS Nightfire algorithm detects IR emitters by identifying pixels that deviate from the background diagonal, and its results are compared with MODIS and VIIRS hotspot detection.
Article
Chemistry, Multidisciplinary
Gnanavel Vaidhyanathan Krishnamurthy, Manohar Chirumamilla, Tobias Krekeler, Martin Ritter, Ragle Raudsepp, Mauricio Schieda, Thomas Klassen, Kjeld Pedersen, Alexander Yu. Petrov, Manfred Eich, Michael Stoermer
Summary: This research examines the feasibility of using Ir metal instead of W metal to manufacture refractory metal-based components under high temperature and pressure conditions. The experimental results demonstrate that the Ir layer does not oxidize in vacuum and inert gas atmosphere, while the W layer starts to oxidize above 1000 degrees Celsius. Therefore, Ir metal can be utilized to produce refractory metal components with excellent oxidation resistance.
ADVANCED MATERIALS
(2023)
Review
Instruments & Instrumentation
Donglai An, Fangyuan Sun, Yupei Bian, Jing Ni, Qi Jie Wang, Xia Yu
Summary: Mid-infrared absorption spectroscopy is a powerful tool for measuring and analyzing the composition, concentration, and structure of substance molecules. It is widely used in the biomedical field for noninvasive, label-free, and real-time analysis and diagnosis. This study reviews various enhancement technologies for mid-infrared absorption spectroscopy and their applications in breath analysis, body fluid detection, protein structure and conformational transition, and food and drug quality monitoring.
APPLIED SPECTROSCOPY REVIEWS
(2022)
Article
Nanoscience & Nanotechnology
Hui-Hsin Hsiao, Bo-Ting Xu
Summary: A double-stacked cross-shaped metal-dielectric-metal (MDM) resonator was proposed for achieving penta-wavelength mid-infrared thermal emission, with four distinct emission bands that can be tuned through a polarization rotator, allowing for simultaneous detection of multi-band molecular absorption fingerprint.
Article
Chemistry, Multidisciplinary
Yoshiaki Nishijima, Saulius Juodkazis
Summary: This study demonstrates a method to control the coupling between molecular mid-infrared absorption/emission and a metasurface using SiO2 as an absorber/emitter and CaF2 as a spacer. The use of inorganic dielectric I-spacers in metal-insulator-metal (MIM) metasurfaces opens up applications for narrow-band emitters in the mid-infrared spectral window at high temperatures (>350 degrees C), where polymer/organic I-spacers degrade.
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
(2022)
Article
Chemistry, Multidisciplinary
Jingyu Zhang, Chang Liu, Hengli Feng, Dongchao Fang, Jincheng Wang, Zuoxin Zhang, Yachen Gao, Yang Gao
Summary: This paper presents a dual-channel mid-infrared toroidal metasurface consisting of split equilateral triangular rings. The electromagnetic responses are analyzed and it is found that one channel is insensitive to the polarization angle of the incident light and temperature, while the other channel is sensitive. Based on this characteristic, metasurfaces for two-bit programmable imaging and thermal imaging are proposed.
Article
Optics
Gurvan Brasse, Remi Soulard, Jean-Louis Doualan, Alain Braud, Abdelmjid Benayad, Patrice Camy
Summary: The study demonstrates the advantages of Tm3+ doping in improving the excitation of Dy3+ ions in CaF2, showing potential for laser applications. Laser modeling results suggest promising laser perspectives around 3 μm, with efficiency levels in the order of 30%, and discuss the saturation of absorption observed in codoped crystals with Dy3+ concentration below 1%.
JOURNAL OF LUMINESCENCE
(2021)
Article
Optics
Xiaohui Li, Xiwei Huang, Xichen Hu, Xiaoxiao Guo, Yueheng Han
Summary: In the past two decades, there have been significant advancements in the development of inexpensive, compact, and efficient mid-infrared pulsed fiber laser technology. Mid-infrared fibers have also become more mature with diverse saturable absorbers. The application of these lasers has expanded to various fields such as molecular spectroscopy, material processing, laser surgery, and biology.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Thaweesak Trongtirakul, Sos Agaian
Summary: This paper introduces an image enhancement algorithm and a quality assessment method for thermal images, as well as an improved algorithm that searches for optimal parameters. Experimental results demonstrate the effectiveness of the proposed algorithm in handling thermal images with different luminance scenes.
SIGNAL PROCESSING-IMAGE COMMUNICATION
(2022)
Article
Chemistry, Analytical
Parviz Saeidi, Bernhard Jakoby, Gerald Puhringer, Andreas Tortschanoff, Gerald Stocker, Florian Dubois, Jasmin Spettel, Thomas Grille, Reyhaneh Jannesari
Summary: Plasmonic slot waveguides offer high light confinement but suffer from significant propagation loss due to the presence of metal. Balancing the trade-off between confinement factor and propagation length is essential for optimizing waveguide geometries.
Article
Engineering, Electrical & Electronic
Simon Lorenzo, Yu-Po Wong, Olav Solgaard
IEEE SENSORS JOURNAL
(2020)
Article
Physics, Multidisciplinary
Yoshiaki Tsujimoto, Chenglong You, Kentaro Wakui, Mikio Fujiwara, Kazuhiro Hayasaka, Shigehito Miki, Hirotaka Terai, Masahide Sasaki, Jonathan P. Dowling, Masahiro Takeoka
NEW JOURNAL OF PHYSICS
(2020)
Article
Engineering, Electrical & Electronic
Chenglong You, Corey T. Matyas, Yin Huang, Jonathan P. Dowling, Georgios Veronis
IEEE PHOTONICS JOURNAL
(2020)
Article
Physics, Applied
Chenglong You, Mario A. Quiroz-Juarez, Aidan Lambert, Narayan Bhusal, Chao Dong, Armando Perez-Leija, Amir Javaid, Roberto de J. Leon-Montiel, Omar S. Magana-Loaiza
APPLIED PHYSICS REVIEWS
(2020)
Review
Nanoscience & Nanotechnology
Chenglong You, Apury Chaitanya Nellikka, Israel De Leon, Omar S. Magana-Loaiza
Article
Quantum Science & Technology
Xiaoping Ma, Chenglong You, Sushovit Adhikari, Yongjian Gu, Omar S. Magana-Loaiza, Jonathan P. Dowling, Hwang Lee
EPJ QUANTUM TECHNOLOGY
(2020)
Article
Engineering, Electrical & Electronic
Simon Lorenzo, Olav Solgaard
IEEE SENSORS JOURNAL
(2020)
Article
Optics
Jiahao Ge, Chenglong You, He Feng, Xiaoman Li, Mei Wang, Lifeng Dong, Georgios Veronis, Maojin Yun
Article
Engineering, Electrical & Electronic
Simon Lorenzo, Anne Kroo, Yu-Po Wong, Olav Solgaard
Summary: This paper presents a temperature-compensated optical fiber platform for silicon sensors. It demonstrates that thermal effects in silicon sensors are significant at operational temperatures, but can be compensated using a nano-fabricated temperature sensor. The platform shows sufficient sensitivity and bandwidth to reduce thermal signals in silicon pressure sensors and microphones significantly.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Simon Lorenzo, Olav Solgaard
Summary: We have developed a wavelength-multiplexed system of optical fiber-based photonic-crystal microphones for acoustic source localization. The system is capable of accurately localizing sound sources in the environment with a wide bandwidth and high sensitivity.
IEEE SENSORS JOURNAL
(2022)
Article
Computer Science, Information Systems
Simon Lorenzo, Yu-Po Wong, Olav Solgaard
Summary: This paper describes the design, characterization, and testing of a compact hydrophone capable of measuring acoustic signals from cardiomyocytes. The hydrophone can operate in small liquid volumes and incorporates a microchannel to vent air during immersion. Modeling and experimental results show good sensitivity and precision in detecting nanometer-scale displacements.
Article
Optics
Jian-Dong Zhang, Chenglong You, Chuang Li, Shuai Wang
Summary: A modified SU(1,1) interferometer protocol utilizing a beam splitter as the second nonlinear element is proposed to enhance phase sensitivity and resist photon loss and background noise. The analysis suggests that the protocol can achieve sub-shot-noise-limited phase sensitivity, making it important for practical quantum metrology using SU(1,1) interferometers.
Article
Quantum Science & Technology
Narayan Bhusal, Sanjaya Lohani, Chenglong You, Mingyuan Hong, Joshua Fabre, Pengcheng Zhao, Erin M. Knutson, Ryan T. Glasser, Omar S. Magana-Loaiza
Summary: Spatial modes of light are important for quantum technologies, but their vulnerability to phase distortions, especially at the single-photon level, has been a challenge. Artificial neural networks have been used to correct these distortions, showing promising results in improving channel capacity and real-time correction of structured photons and single-photon images.
ADVANCED QUANTUM TECHNOLOGIES
(2021)
Article
Physics, Multidisciplinary
Mario A. Quiroz-Juarez, Chenglong You, Javier Carrillo-Martinez, Diego Montiel-Alvarez, Jose L. Aragon, Omar S. Magana-Loaiza, Roberto de J. Leon-Montiel
Summary: This study presents a highly scalable, versatile, and tunable electronic platform for simulating quantum transport phenomena, showcasing its robustness and precise control through simulations of various quantum transport protocols and the implementation of a perfect transport protocol.
PHYSICAL REVIEW RESEARCH
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Simon Lorenzo, Yu-Po Wong, Olav Solgaard
2020 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
(2020)