{"title":"Research progress on aero-optical effects of hypersonic optical window with film cooling.","authors":"Shihe Yi, Haolin Ding, Suyiming Luo, Xiaobin Sun, Zihao Xia","doi":"10.1038/s41377-024-01596-x","DOIUrl":"10.1038/s41377-024-01596-x","url":null,"abstract":"<p><p>In recent years, the demand for optical imaging and detection in hypersonic aircraft has been on the rise. The high-temperature and high-pressure compressed flow field near airborne optoelectronic devices creates significant interference with light transmission, known as hypersonic aero-optical effects. This effect has emerged as a key technological challenge, limiting hypersonic optical imaging and detection capabilities. This article focuses on introducing the thermal effects and optical transmission effects of hypersonic aero-optical effects, as along with corresponding suppression techniques. In addition, this article critically reviews and succinctly summarizes the advancements made in hypersonic aero-optical effects testing technology, while also delineating avenues for future research needs in this field. In conclusion, there is an urgent call for further exploration into the study of aero-optical effects under conditions characterized by high Mach, high enthalpy, and high Reynolds number in the future.</p>","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"13 1","pages":"310"},"PeriodicalIF":19.4,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11570696/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142648451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dae-Myeong Geum, Jinha Lim, Junho Jang, Seungyeop Ahn, SeongKwang Kim, Joonsup Shim, Bong Ho Kim, Juhyuk Park, Woo Jin Baek, Jaeyong Jeong, SangHyeon Kim
{"title":"Highly-efficient (>70%) and Wide-spectral (400-1700 nm) sub-micron-thick InGaAs photodiodes for future high-resolution image sensors.","authors":"Dae-Myeong Geum, Jinha Lim, Junho Jang, Seungyeop Ahn, SeongKwang Kim, Joonsup Shim, Bong Ho Kim, Juhyuk Park, Woo Jin Baek, Jaeyong Jeong, SangHyeon Kim","doi":"10.1038/s41377-024-01652-6","DOIUrl":"10.1038/s41377-024-01652-6","url":null,"abstract":"<p><p>This paper demonstrates the novel approach of sub-micron-thick InGaAs broadband photodetectors (PDs) designed for high-resolution imaging from the visible to short-wavelength infrared (SWIR) spectrum. Conventional approaches encounter challenges such as low resolution and crosstalk issues caused by a thick absorption layer (AL). Therefore, we propose a guided-mode resonance (GMR) structure to enhance the quantum efficiency (QE) of the InGaAs PDs in the SWIR region with only sub-micron-thick AL. The TiO<sub>x</sub>/Au-based GMR structure compensates for the reduced AL thickness, achieving a remarkably high QE (>70%) from 400 to 1700 nm with only a 0.98 μm AL InGaAs PD (defined as 1 μm AL PD). This represents a reduction in thickness by at least 2.5 times compared to previous results while maintaining a high QE. Furthermore, the rapid transit time is highly expected to result in decreased electrical crosstalk. The effectiveness of the GMR structure is evident in its ability to sustain QE even with a reduced AL thickness, simultaneously enhancing the transit time. This breakthrough offers a viable solution for high-resolution and low-noise broadband image sensors.</p>","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"13 1","pages":"311"},"PeriodicalIF":19.4,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11568205/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142639251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lorry Mazzella, Thomas Mangeat, Guillaume Giroussens, Benoit Rogez, Hao Li, Justine Creff, Mehdi Saadaoui, Carla Martins, Ronan Bouzignac, Simon Labouesse, Jérome Idier, Frédéric Galland, Marc Allain, Anne Sentenac, Loïc LeGoff
{"title":"Extended-depth of field random illumination microscopy, EDF-RIM, provides super-resolved projective imaging.","authors":"Lorry Mazzella, Thomas Mangeat, Guillaume Giroussens, Benoit Rogez, Hao Li, Justine Creff, Mehdi Saadaoui, Carla Martins, Ronan Bouzignac, Simon Labouesse, Jérome Idier, Frédéric Galland, Marc Allain, Anne Sentenac, Loïc LeGoff","doi":"10.1038/s41377-024-01612-0","DOIUrl":"10.1038/s41377-024-01612-0","url":null,"abstract":"<p><p>The ultimate aim of fluorescence microscopy is to achieve high-resolution imaging of increasingly larger biological samples. Extended depth of field presents a potential solution to accelerate imaging of large samples when compression of information along the optical axis is not detrimental to the interpretation of images. We have implemented an extended depth of field (EDF) approach in a random illumination microscope (RIM). RIM uses multiple speckled illuminations and variance data processing to double the resolution. It is particularly adapted to the imaging of thick samples as it does not require the knowledge of illumination patterns. We demonstrate highly-resolved projective images of biological tissues and cells. Compared to a sequential scan of the imaged volume with conventional 2D-RIM, EDF-RIM allows an order of magnitude improvement in speed and light dose reduction, with comparable resolution. As the axial information is lost in an EDF modality, we propose a method to retrieve the sample topography for samples that are organized in cell sheets.</p>","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"13 1","pages":"285"},"PeriodicalIF":19.4,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11479626/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142391640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sirazul Haque, Miguel Alexandre, António T Vicente, Kezheng Li, Christian S Schuster, Sui Yang, Hugo Águas, Rodrigo Martins, Rute A S Ferreira, Manuel J Mendes
{"title":"Publisher Correction: Photon shifting and trapping in perovskite solar cells for improved efficiency and stability.","authors":"Sirazul Haque, Miguel Alexandre, António T Vicente, Kezheng Li, Christian S Schuster, Sui Yang, Hugo Águas, Rodrigo Martins, Rute A S Ferreira, Manuel J Mendes","doi":"10.1038/s41377-024-01637-5","DOIUrl":"https://doi.org/10.1038/s41377-024-01637-5","url":null,"abstract":"","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"13 1","pages":"259"},"PeriodicalIF":19.4,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11413199/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142290416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Electrically tunable planar liquid-crystal singlets for simultaneous spectrometry and imaging.","authors":"Zhou Zhou, Yiheng Zhang, Yingxin Xie, Tian Huang, Zile Li, Peng Chen, Yan-Qing Lu, Shaohua Yu, Shuang Zhang, Guoxing Zheng","doi":"10.1038/s41377-024-01608-w","DOIUrl":"10.1038/s41377-024-01608-w","url":null,"abstract":"<p><p>Conventional hyperspectral cameras cascade lenses and spectrometers to acquire the spectral datacube, which forms the fundamental framework for hyperspectral imaging. However, this cascading framework involves tradeoffs among spectral and imaging performances when the system is driven toward miniaturization. Here, we propose a spectral singlet lens that unifies optical imaging and computational spectrometry functions, enabling the creation of minimalist, miniaturized and high-performance hyperspectral cameras. As a paradigm, we capitalize on planar liquid crystal optics to implement the proposed framework, with each liquid-crystal unit cell acting as both phase modulator and electrically tunable spectral filter. Experiments with various targets show that the resulting millimeter-scale hyperspectral camera exhibits both high spectral fidelity ( > 95%) and high spatial resolutions ( ~1.7 times the diffraction limit). The proposed \"two-in-one\" framework can resolve the conflicts between spectral and imaging resolutions, which paves a practical pathway for advancing hyperspectral imaging systems toward miniaturization and portable applications.</p>","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"13 1","pages":"242"},"PeriodicalIF":19.4,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11381520/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142154490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Youyan Lu, Liyun Liu, Ruoqian Gao, Ying Xiong, Peiqing Sun, Zhanghao Wu, Kai Wu, Tong Yu, Kai Zhang, Cheng Zhang, Tarik Bourouina, Xiaofeng Li, Xiaoyi Liu
{"title":"Ultrafast near-infrared pyroelectric detector based on inhomogeneous plasmonic metasurface.","authors":"Youyan Lu, Liyun Liu, Ruoqian Gao, Ying Xiong, Peiqing Sun, Zhanghao Wu, Kai Wu, Tong Yu, Kai Zhang, Cheng Zhang, Tarik Bourouina, Xiaofeng Li, Xiaoyi Liu","doi":"10.1038/s41377-024-01572-5","DOIUrl":"10.1038/s41377-024-01572-5","url":null,"abstract":"<p><p>Pyroelectric (PE) detection technologies have attracted extensive attention due to the cooling-free, bias-free, and broadband properties. However, the PE signals are generated by the continuous energy conversion processes from light, heat, to electricity, normally leading to very slow response speeds. Herein, we design and fabricate a PE detector which shows extremely fast response in near-infrared (NIR) band by combining with the inhomogeneous plasmonic metasurface. The plasmonic effect dramatically accelerates the light-heat conversion process, unprecedentedly improving the NIR response speed by 2-4 orders of magnitude to 22 μs, faster than any reported infrared (IR) PE detector. We also innovatively introduce the concept of time resolution into the field of PE detection, which represents the detector's ability to distinguish multiple fast-moving targets. Furthermore, the spatially inhomogeneous design overcomes the traditional narrowband constraint of plasmonic systems and thus ensures a wideband response from visible to NIR. This study provides a promising approach to develop next-generation IR PE detectors with ultrafast and broadband responses.</p>","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"13 1","pages":"241"},"PeriodicalIF":19.4,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11377428/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142140489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sang Ho Suk, Sanghee Nah, Muhammad Sajjad, Sung Bok Seo, Jianxiang Chen, Sangwan Sim
{"title":"Sub-picosecond, strain-tunable, polarization-selective optical switching via anisotropic exciton dynamics in quasi-1D ZrSe<sub>3</sub>.","authors":"Sang Ho Suk, Sanghee Nah, Muhammad Sajjad, Sung Bok Seo, Jianxiang Chen, Sangwan Sim","doi":"10.1038/s41377-024-01585-0","DOIUrl":"10.1038/s41377-024-01585-0","url":null,"abstract":"<p><p>In cutting-edge optical technologies, polarization is a key for encoding and transmitting vast information, highlighting the importance of selectively switching and modulating polarized light. Recently, anisotropic two-dimensional materials have emerged for ultrafast switching of polarization-multiplexed optical signals, but face challenges with low polarization ratios and limited spectral ranges. Here, we apply strain to quasi-one-dimensional layered ZrSe<sub>3</sub> to enhance polarization selectivity and tune operational energies in ultrafast all-optical switching. Initially, transient absorption on unstrained ZrSe<sub>3</sub> reveals a sub-picosecond switching response in polarization along a specific crystal axis, attributed to shifting-recovery dynamics of an anisotropic exciton. However, its polarization selectivity is weakened by a slow non-excitonic response in the perpendicular polarization. To overcome this limitation, we apply strain to ZrSe<sub>3</sub> by bending its flexible substrate. The compressive strain spectrally decouples the excitonic and non-excitonic components, doubling the polarization selectivity of the sub-picosecond switching and tripling it compared to that in the tensile-strained ZrSe<sub>3</sub>. It also effectively tunes the switching energy at a shift rate of ~93 meV %<sup>-1</sup>. This strain-tunable switching is repeatable, reversible, and robustly maintains the sub-picosecond operation. First-principles calculations reveal that the strain control is enabled by momentum- and band-dependent modulations of the electronic band structure, causing opposite shifts in the excitonic and non-excitonic transitions. Our findings offer a novel approach for high-performance, wavelength-tunable, polarization-selective ultrafast optical switching.</p>","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"13 1","pages":"240"},"PeriodicalIF":19.4,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11377565/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142140488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wei Ren, Xichuan Ge, Meiqi Li, Jing Sun, Shiyi Li, Shu Gao, Chunyan Shan, Baoxiang Gao, Peng Xi
{"title":"Author Correction: Visualization of cristae and mtDNA interactions via STED nanoscopy using a low saturation power probe.","authors":"Wei Ren, Xichuan Ge, Meiqi Li, Jing Sun, Shiyi Li, Shu Gao, Chunyan Shan, Baoxiang Gao, Peng Xi","doi":"10.1038/s41377-024-01584-1","DOIUrl":"10.1038/s41377-024-01584-1","url":null,"abstract":"","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"13 1","pages":"235"},"PeriodicalIF":19.4,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11375147/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142133161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Seeing invisible objects with intelligent optics.","authors":"Isaac Nape, Andrew Forbes","doi":"10.1038/s41377-024-01575-2","DOIUrl":"10.1038/s41377-024-01575-2","url":null,"abstract":"<p><p>Transparent objects are invisible to traditional cameras because they can only detect intensity fluctuations, necessitating the need for interferometry followed by computationally intensive digital image processing. Now it is shown that the necessary transformations can be performed optically by combining machine learning and diffractive optics, for a direct in-situ measurement of transparent objects with conventional cameras.</p>","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"13 1","pages":"232"},"PeriodicalIF":19.4,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11374888/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142133163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Micro-patterning of spintronic emitters enables ultrabroadband structured terahertz radiation.","authors":"Hou-Tong Chen","doi":"10.1038/s41377-024-01579-y","DOIUrl":"10.1038/s41377-024-01579-y","url":null,"abstract":"<p><p>Structured light beams offer promising properties for a variety of applications, but the generation of broadband structured light remains a challenge. New opportunities are emerging in the terahertz frequency range owing to recent progress in light-driven ultrafast vectorial currents through spatially patterning spintronic and optoelectronic systems.</p>","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"13 1","pages":"234"},"PeriodicalIF":19.4,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11374789/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142133162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}