ACS Photonics最新文献

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Broadband Continuous Integer- and Fractional-Order Multimode OAM Beam Generator via a Metasurface 通过元面实现宽带连续整数阶和分数阶多模 OAM 光束发生器
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-01-15 DOI: 10.1021/acsphotonics.4c01823
Ruichen Li, Min Huang, Yijun Zou, Rongrong Zhu, Bin Zheng, Tianshuo Qiu, Hongsheng Chen
{"title":"Broadband Continuous Integer- and Fractional-Order Multimode OAM Beam Generator via a Metasurface","authors":"Ruichen Li, Min Huang, Yijun Zou, Rongrong Zhu, Bin Zheng, Tianshuo Qiu, Hongsheng Chen","doi":"10.1021/acsphotonics.4c01823","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01823","url":null,"abstract":"Orbital angular momentum (OAM) waves have attracted significant attention for many applications, such as super-resolution imaging, image edge enhancement, and multiplexing communications, owing to their infinite orthogonal integer-order and nonorthogonal fractional-order modes. As a new degree of freedom for electromagnetic (EM) waves, multimode OAM beam generation is a precondition for their application. However, achieving multimode OAM beams simultaneously in free space is challenging. This study proposed a novel strategy for generating vortex beams with continuous OAM modes constructed from multiresonant metasurfaces of arbitrary shapes. The generator was capable of continuously generating an infinite number of OAM modes (α ∈ [1,3]) in the frequency range of 8 to 12 GHz. An experiment of broadband continuous integer- and fractional-order multimode OAM generators was successfully demonstrated to operate within the frequency range of 8 to 12 GHz. This study contributes to the reduction of the density and mass of generators and provides useful insights for radar detection systems and multiplexing communications.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"31 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142981155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ferrocene Interlayer for a Stable and Gap-Free P3HT-Based Perovskite Solar Cell as a Low-Cost Power Source for Indoor IoTs 一种稳定无间隙p3ht钙钛矿太阳能电池的二茂铁中间层作为室内物联网的低成本电源
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-01-15 DOI: 10.1021/acsphotonics.4c01469
Chaowaphat Seriwattanachai, Somboon Sahasithiwat, Thana Chotchuangchutchaval, Ladda Srathongsian, Worawat Wattanathana, Zhijun Ning, Napan Phuphathanaphong, Patawee Sakata, Ko Ko Shin Thant, Thunrada Sukwiboon, Anuchytt Inna, Thanawat Kanlayapattamapong, Anusit Kaewprajak, Pisist Kumnorkaew, Ratchadaporn Supruangnet, Thipusa Wongpinij, Hideki Nakajima, Duangmanee Wongratanaphisan, Pasit Pakawatpanurut, Pipat Ruankham, Pongsakorn Kanjanaboos
{"title":"Ferrocene Interlayer for a Stable and Gap-Free P3HT-Based Perovskite Solar Cell as a Low-Cost Power Source for Indoor IoTs","authors":"Chaowaphat Seriwattanachai, Somboon Sahasithiwat, Thana Chotchuangchutchaval, Ladda Srathongsian, Worawat Wattanathana, Zhijun Ning, Napan Phuphathanaphong, Patawee Sakata, Ko Ko Shin Thant, Thunrada Sukwiboon, Anuchytt Inna, Thanawat Kanlayapattamapong, Anusit Kaewprajak, Pisist Kumnorkaew, Ratchadaporn Supruangnet, Thipusa Wongpinij, Hideki Nakajima, Duangmanee Wongratanaphisan, Pasit Pakawatpanurut, Pipat Ruankham, Pongsakorn Kanjanaboos","doi":"10.1021/acsphotonics.4c01469","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01469","url":null,"abstract":"Although poly(3-hexylthiophene-2,5-diyl) (P3HT) with its stability-boosting hydrophobic surface is a promising low-cost alternative dopant-free hole transport material for n-i-p perovskite solar cells (PSCs), the P3HT-based PSCs suffer from surface energy mismatch between hydrophilic perovskite and hydrophobic P3HT, which results in interlayer gap, poor electronic contact, and poor charge extraction. In this study, low-cost ferrocene (Fc) acts as an interlayer at the perovskite/P3HT interface, inducing the replacement of the hydrophobic edge-on stacking of alkyl side chains with the hydrophilic π–π stacking of thiophene rings within the P3HT structure to mitigate such an energy mismatch. With an optimal amount of Fc, an average PCE of 23.6% has been achieved under indoor light at 1000 lux in comparison to 20.6% of P3HT-based PSCs without Fc. In addition, an unencapsulated device with the interlayer can retain 80% of initial PCE (T80) over 12 months in the dark with 70% RH, longer than T80 of 8 months without Fc. Finally, a Bluetooth sensor module is powered by three Fc-passivated P3HT-based PSCs connected in series to demonstrate the capacity of replacing batteries used for the Internet of Things (IoTs).","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"31 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142981154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photon-Limited Imaging by Timestamped All-Pixel Sensing (PITAS) 全像素时间戳传感光子限幅成像(PITAS)
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-01-14 DOI: 10.1021/acsphotonics.4c01275
Zhan-Ming Li, Shi-Bao Wu, Zhi-Yao Wang, Jun Gao, Zeng-Quan Yan, Heng Zhou, Si-Yuan Yin, Xian-Min Jin
{"title":"Photon-Limited Imaging by Timestamped All-Pixel Sensing (PITAS)","authors":"Zhan-Ming Li, Shi-Bao Wu, Zhi-Yao Wang, Jun Gao, Zeng-Quan Yan, Heng Zhou, Si-Yuan Yin, Xian-Min Jin","doi":"10.1021/acsphotonics.4c01275","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01275","url":null,"abstract":"Single-photon technology, based on the measurement of very weak-dose electromagnetic radiation fields, has diverse applications ranging from life sciences to remote sensing. Meanwhile, computational algorithms based on such sparse photons speed up the reconstruction and optimization tasks in low-light-level imaging. However, conventional photon-counting strategies leave out the time parameter, potentially improving image quality, which has been an open but unresolved challenge. Here, we propose photon-limited imaging by time-stamped all-pixel sensing to retrieve the objects in low-light conditions. By simultaneously timestamping the observed photons in all pixels, effectively extracting the intertime information, and globally optimizing the correlation of adjacent pixels, we experimentally achieve a 2.25-fold enhancement in contrast superior to the photon counting method with the same limited photons. The proposed scheme is not limited by the light sources, the kernel of which may be of considerable value to weak pump and probe processes in the fields of fluorescence microscopy, biomedical imaging, particle physics, astronomy, etc.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"74 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142975404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Single-Defect Mode Lasing in a Non-Hermitian 1D Trivial SSH Lattice 非ermitian 1D 三重 SSH 晶格中的单缺陷模式激光
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-01-13 DOI: 10.1021/acsphotonics.4c02136
Abouzar Gharajeh, Kiyanoush Goudarzi, Qing Gu
{"title":"Single-Defect Mode Lasing in a Non-Hermitian 1D Trivial SSH Lattice","authors":"Abouzar Gharajeh, Kiyanoush Goudarzi, Qing Gu","doi":"10.1021/acsphotonics.4c02136","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c02136","url":null,"abstract":"We demonstrate robust single-mode lasing in a non-Hermitian 1D trivial Su–Schrieffer–Heeger (SSH) defective lattice. This structure exhibits a significantly lower threshold power compared to the nondefective lattice, with single-mode lasing sustained across a wide range of pump powers. Notably, our proposed device requires pumping of only the defect ring, leading to minimal pump power. Moreover, lasing is not confined to the edges but can occur at any point within the lattice.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"7 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142968593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optical Coherence of B Center Quantum Emitters in Hexagonal Boron Nitride 六方氮化硼中B中心量子发射体的光学相干性
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-01-13 DOI: 10.1021/acsphotonics.4c02088
Jake Horder, Dominic Scognamiglio, Nathan Coste, Angus Gale, Kenji Watanabe, Takashi Taniguchi, Mehran Kianinia, Milos Toth, Igor Aharonovich
{"title":"Optical Coherence of B Center Quantum Emitters in Hexagonal Boron Nitride","authors":"Jake Horder, Dominic Scognamiglio, Nathan Coste, Angus Gale, Kenji Watanabe, Takashi Taniguchi, Mehran Kianinia, Milos Toth, Igor Aharonovich","doi":"10.1021/acsphotonics.4c02088","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c02088","url":null,"abstract":"Coherent quantum emitters are a central resource for advanced quantum technologies. Hexagonal boron nitride (hBN) hosts a range of quantum emitters that can be engineered using techniques such as high-temperature annealing, optical doping, and irradiation with electrons or ions. Here, we demonstrate that such processes can degrade the coherence and, hence, the functionality of quantum emitters in hBN. Specifically, we show that hBN annealing and doping methods that are used routinely in hBN nanofabrication protocols give rise to fluctuations in the spectrum and intensity of B center quantum emitters. This decoherence is characterized in detail and attributed to defects that act as charge traps, which fluctuate electrostatically during SPE excitation and induce spectral diffusion. The decoherence is minimal when the emitters are engineered by electron beam irradiation of as-grown, pristine flakes of hBN, where B center line widths approach the lifetime limit needed for quantum applications involving interference and entanglement. Our work highlights the critical importance of crystal lattice quality to achieving coherent quantum emitters in hBN, despite the common perception that the hBN lattice and hBN SPEs are highly stable and resilient against chemical and thermal degradation. It underscores the need for nanofabrication techniques that are minimally invasive and avoid crystal damage when engineering hBN SPEs and devices for quantum-coherent technologies.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"118 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142975405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dual-Beam THz Spectrometer with Low-Aberration Optics and Off-Axis Multipixel Photoconductive Emitters for Reduced Systematic Errors 采用低像差光学和离轴多像素光导发射器的双光束太赫兹光谱仪,可降低系统误差
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-01-11 DOI: 10.1021/acsphotonics.4c01934
Nishtha Chopra, James Lloyd-Hughes
{"title":"Dual-Beam THz Spectrometer with Low-Aberration Optics and Off-Axis Multipixel Photoconductive Emitters for Reduced Systematic Errors","authors":"Nishtha Chopra, James Lloyd-Hughes","doi":"10.1021/acsphotonics.4c01934","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01934","url":null,"abstract":"A dual-beam THz spectrometer is reported that substantially reduces the influence of systematic errors in THz time-domain spectroscopy such as those caused by variations in femtosecond laser power or the environmental temperature and humidity. Dual THz beams with single-cycle waveforms were generated simultaneously using a dual-pixel interdigitated photoconductive antenna, allowing the simultaneous acquisition of sample and reference data in the spectrometer using the same optical components. A low-aberration optical geometry ensured diffraction-limited spatial profiles for both beams despite their off-axis propagation and was validated experimentally by measuring frequency-dependent beam profiles and theoretically via physical optics calculations. Although the experimental amplitudes and absolute phase spectra of both beams were very similar, we further provided a correction procedure to eliminate these small differences. The robustness of the dual-beam spectrometer design was evaluated by measuring the complex transmission of a thin plastic sheet after intentionally introducing a change in the relative humidity of the THz beam path. The dual-beam THz spectrometer was effective at removing systematic errors in the amplitude and phase by simultaneously measuring the two THz beams under the same conditions.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"16 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142961171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spatial Phasor Analysis for Optical Sectioning Nanoscopy 光学切片纳米显微镜的空间相量分析
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-01-10 DOI: 10.1021/acsphotonics.4c02336
Yuran Huang, Zitong Ye, Zhimin Zhang, Hanchu Ye, Liang Xu, Xiang Hao, Yubing Han, Cuifang Kuang, Xu Liu
{"title":"Spatial Phasor Analysis for Optical Sectioning Nanoscopy","authors":"Yuran Huang, Zitong Ye, Zhimin Zhang, Hanchu Ye, Liang Xu, Xiang Hao, Yubing Han, Cuifang Kuang, Xu Liu","doi":"10.1021/acsphotonics.4c02336","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c02336","url":null,"abstract":"Super-resolution microscopy has broken the traditional resolution barrier of optical microscopy. However, its application in imaging live and thick specimens has been limited. To date, optical sectioning in super-resolution microscopy either rely on inaccurate background estimation or been hindered in live-cell imaging by excessive complexity and cost. Here, we report spatial phasor image scanning microscopy (spISM), which aims to enhance the optical sectioning by a factor of ∼2 without drawbacks for any microscope equipped with a detector array. By incorporating spatial-domain phasor analysis into image scanning microscopy, spISM decodes information about the axial position, thus accurately identifying in-focus and out-of-focus signals. We demonstrate that this approach is automatic, adaptive, and robust to specimen and microscope setups. It has a rapid processing speed, enabling multicolor imaging in live-cell. The performance of the reported approach is validated by imaging up to eight subcellular structures. As spISM is fully compatible with laser scanning microscopy, it holds great potential to become a turn-key solution for biological research.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"130 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142940453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hybrid Iterating-Averaging Low Photon Budget Gabor Holographic Microscopy 混合迭代平均低光子预算Gabor全息显微镜
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-01-10 DOI: 10.1021/acsphotonics.4c01863
Mikolaj Rogalski, Piotr Arcab, Emilia Wdowiak, José Ángel Picazo-Bueno, Vicente Micó, Michal Józwik, Maciej Trusiak
{"title":"Hybrid Iterating-Averaging Low Photon Budget Gabor Holographic Microscopy","authors":"Mikolaj Rogalski, Piotr Arcab, Emilia Wdowiak, José Ángel Picazo-Bueno, Vicente Micó, Michal Józwik, Maciej Trusiak","doi":"10.1021/acsphotonics.4c01863","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01863","url":null,"abstract":"Achieving high-contrast, label-free imaging with minimal impact on live cell culture behavior remains a primary challenge in quantitative phase imaging (QPI). By enabling imaging under low illumination intensities (low photon budget, LPB), it is possible to minimize cell photostimulation, phototoxicity, and photodamage while supporting long-term and high-speed observations. However, LPB imaging introduces significant difficulties in QPI due to high levels of camera shot noise and quantification noise. Digital in-line holographic microscopy (DIHM) is a QPI technique known for its robustness against LPB data. However, simultaneous minimization of shot noise and inherent in DIHM twin image perturbation remains a critical challenge. In this study, we present the iterative Gabor averaging (IGA) algorithm, a novel approach that integrates iterative phase retrieval with frame averaging to effectively suppress both twin image disturbance and shot noise in multiframe DIHM. The IGA algorithm achieves this by leveraging an iterative process that reconstructs high-fidelity phase images while selectively averaging camera shot noise across frames. Our simulations demonstrate that IGA consistently outperforms conventional methods, achieving superior reconstruction accuracy, particularly under high-noise conditions. Experimental validations involving high-speed imaging of dynamic sperm cells and a static phase test target measurement under low illumination further confirmed IGA’s efficacy. The algorithm also proved successful for optically thin samples, which often yield low signal-to-noise holograms even at high photon budgets. These advancements make IGA a powerful tool for photostimulation-free, high-speed imaging of dynamic biological samples and enhance the ability to image samples with extremely low optical thickness, potentially transforming biomedical and environmental applications in low-light settings.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"75 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142961174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advanced Speckle Wavemeter Based on a Silicon Chip 基于硅芯片的先进散斑波计
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-01-09 DOI: 10.1021/acsphotonics.4c02179
Haole Kong, Zhiming Zhang, Zhihang Lin, Yanghui Li, Juan Kang, Le Wang, Yi Li
{"title":"Advanced Speckle Wavemeter Based on a Silicon Chip","authors":"Haole Kong, Zhiming Zhang, Zhihang Lin, Yanghui Li, Juan Kang, Le Wang, Yi Li","doi":"10.1021/acsphotonics.4c02179","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c02179","url":null,"abstract":"We present a speckle-based wavemeter utilizing a silicon waveguide chip to deliver high-precision and fast wavelength measurements. The design features a multimode coiled waveguide structure as the scattering medium to generate speckles, and a taper splitter was used to compress the speckle into four single mode outputs for high speed measurements. The whole chip was well encapsulated within a temperature-controlled package. Experimental results demonstrate that the wavemeter achieved a wavelength resolution as high as 0.095 pm (mean absolute error, MAE) across the entire C-band. In high-speed demonstrations, it effectively tracked wavelength changes in a rapidly tuning laser at approximately 1077 nm/s for a frequency-modulated continuous wave (FMCW) system and the jitter of an ITLA laser module with a 100 MHz data update rate. Furthermore, the wavemeter maintained an error within ±0.1 pm over a 30 h period at room temperature. This compact, cost-effective wavemeter provides a robust, real-time, and highly precise wavelength measurement solution that is ideal for applications in laser characterization, optical communication network monitoring, and optical fiber sensing systems.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"3 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142940454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thin-Film Lead Zirconate Titanate Nanobeam Electro-Optic Modulator 薄膜锆钛酸铅纳米束电光调制器
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-01-08 DOI: 10.1021/acsphotonics.4c02113
Hongyan Yu, Yujun Xie, Chenlei Li, Jungan Wang, Chen Yang, Lei Wang, Ke Li, Daoxin Dai, Ming Li, Feng Qiu
{"title":"Thin-Film Lead Zirconate Titanate Nanobeam Electro-Optic Modulator","authors":"Hongyan Yu, Yujun Xie, Chenlei Li, Jungan Wang, Chen Yang, Lei Wang, Ke Li, Daoxin Dai, Ming Li, Feng Qiu","doi":"10.1021/acsphotonics.4c02113","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c02113","url":null,"abstract":"The integration of electro-optic (EO) films on an insulator/silicon (Si) substrate presents opportunities to enhance the performance of devices with novel electronic and photonic properties. Among these EO films, lead zirconate titanate (PZT) exhibits attractive optical properties and a particularly strong Pockels effect. Here, we demonstrate ultracompact EO modulators incorporating PZT thin films on the ubiquitous SiO<sub>2</sub>/Si substrate based on the photonic crystal nanobeam resonator. With a moderate <i>Q</i>-factor in the designed distributed feedback resonator, the modulator exhibits a notable tuning efficiency of 21.2 pm under an applying voltage of 1 V and a broad modulation bandwidth of 37 GHz while maintaining a device length of only 50 μm. The device can support an ultrafast modulation of up to 80 Gbit/s and meanwhile features excellent reliability with a negligible power shift at a bias of 3 V even after 60 min. The ultracompact and high-speed PZT modulators could pave the way toward realizing dense photonic integrated circuits for broad applications in data communication, microwave photonics, and quantum photonics.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"42 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142936430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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