OpticaPub Date : 2023-11-24DOI: 10.1364/optica.507655
D. Kedar, Zhibin Yao, Ivan Ryger, John L. Hall, Jun Ye
{"title":"Synthetic FM triplet for AM-free precision laser stabilization and spectroscopy","authors":"D. Kedar, Zhibin Yao, Ivan Ryger, John L. Hall, Jun Ye","doi":"10.1364/optica.507655","DOIUrl":"https://doi.org/10.1364/optica.507655","url":null,"abstract":"The Pound-Drever-Hall (PDH) cavity-locking scheme has found prevalent uses in precision optical interferometry and laser frequency stabilization. A form of frequency modulation spectroscopy, PDH enjoys superior signal-to-noise recovery, large acquisition dynamic range, wide servo bandwidth, and robust rejection of spurious effects. However, residual amplitude modulation at the signal frequency, while significantly suppressed, still presents an important concern for further advancing the state-of-the-art performances. Here we present a simplified and improved scheme for PDH using an acousto-optic modulator to generate digital phase reference sidebands instead of the traditionally used electro-optic modulator approach. We demonstrate four key advantages: (1) the carrier and two modulation tones are individually synthesized and easily reconfigured, (2) robust and orthogonal control of the modulated optical field is applied directly to the amplitude and phase quadratures, (3) modulation synthesis, demodulation, and feedback are implemented in a self-contained and easily reproducible electronic unit, and (4) superior active and passive control of residual amplitude modulation is achieved, especially when the carrier power is vanishingly low. These distinct merits stimulate new ideas on how we optimally enact PDH for a wide range of applications.","PeriodicalId":19515,"journal":{"name":"Optica","volume":"11 46 1","pages":""},"PeriodicalIF":10.4,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139238473","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}
OpticaPub Date : 2023-11-16DOI: 10.1364/optica.501428
Guiyuan Zhu, Binjie Gao, Linhua Ye, Junxiang Zhang, Li-Gang Wang
{"title":"Enhanced opposite Imbert–Fedorov shifts of vortex beams for precise sensing of temperature and thickness","authors":"Guiyuan Zhu, Binjie Gao, Linhua Ye, Junxiang Zhang, Li-Gang Wang","doi":"10.1364/optica.501428","DOIUrl":"https://doi.org/10.1364/optica.501428","url":null,"abstract":"Imbert-Fedorov (IF) shift, which refers to a tiny transverse splitting induced by spin-orbit interaction at a reflection/refraction interface, is sensitive to the refractive index of a medium and momentum state of incident light. Most of studies have focused on the shift for an incident light beam with a spin angular momentum (SAM) i.e., circular polarization. Compared to SAM, orbital angular momentum (OAM) has infinite dimensions in theory as a new degree of freedom of light and plays an important role in light-matter coupling. We demonstrate experimentally that the relative IF shifts of vortex beams with large opposite OAMs are highly enhanced in resonant structures when light refracts through a double-prism structure (DPS), in which the thickness and temperature of the air gap are precisely sensed via the observed relative IF shifts. The thickness and temperature sensitivities increase as the absolute value of opposite OAMs increases. Our results offer a technological and practical platform for applications in sensing of thickness and temperature, ingredients of environment gas, spatial displacement, chemical substances and deformation structure.","PeriodicalId":19515,"journal":{"name":"Optica","volume":"98 4","pages":""},"PeriodicalIF":10.4,"publicationDate":"2023-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139268418","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}
OpticaPub Date : 2023-11-14DOI: 10.1364/optica.502857
Vishwanath Saragadam, Zheyi Han, Vivek Boominathan, Luocheng Huang, Shiyu Tan, Johannes Froech, Karl Bohringer, Richard Baraniuk, Arka Majumdar, Ashok Veeraraghavan
{"title":"Foveated Thermal Computational Imaging in the Wild Using All-Silicon Meta-Optics","authors":"Vishwanath Saragadam, Zheyi Han, Vivek Boominathan, Luocheng Huang, Shiyu Tan, Johannes Froech, Karl Bohringer, Richard Baraniuk, Arka Majumdar, Ashok Veeraraghavan","doi":"10.1364/optica.502857","DOIUrl":"https://doi.org/10.1364/optica.502857","url":null,"abstract":"","PeriodicalId":19515,"journal":{"name":"Optica","volume":"10 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134956993","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}
OpticaPub Date : 2023-11-10DOI: 10.1364/optica.500039
Clémentine Rouvière, David Barral Rana, Antonin Grateau, Ilya Karuseichyk, Giacomo Sorelli, Mattia Walschaers, Nicolas Treps
{"title":"Ultra-sensitive separation estimation of optical sources","authors":"Clémentine Rouvière, David Barral Rana, Antonin Grateau, Ilya Karuseichyk, Giacomo Sorelli, Mattia Walschaers, Nicolas Treps","doi":"10.1364/optica.500039","DOIUrl":"https://doi.org/10.1364/optica.500039","url":null,"abstract":"Historically, the resolution of optical imaging systems was dictated by diffraction, and the Rayleigh criterion was long considered an unsurpassable limit. In superresolution microscopy, this limit is overcome by manipulating the emission properties of the object. However, in passive imaging, when sources are uncontrolled, reaching sub-Rayleigh resolution remains a challenge. Here, we implement a quantum-metrolgy-inspired approach for estimating the separation between two incoherent sources, achieving a sensitivity five orders of magnitude beyond the Rayleigh limit. Using a spatial mode demultiplexer, we examine scenes with bright and faint sources, through intensity measurements in the Hermite-Gauss basis. Analysing sensitivity and accuracy over an extensive range of separations, we demonstrate the remarkable effectiveness of demultiplexing for sub-Rayleigh separation estimation. These results effectively render the Rayleigh limit obsolete for passive imaging.","PeriodicalId":19515,"journal":{"name":"Optica","volume":"85 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135092421","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}
OpticaPub Date : 2023-11-09DOI: 10.1364/optica.502732
Zhetao Jia, Wayesh Qarony, Jagang Park, Sean Hooten, Difan Wen, Yertay Zhiyenbayev, Matteo Seclì, Walid Redjem, Scott Dhuey, Adam Schwartzberg, Eli Yablonovitch, and Boubacar Kanté
{"title":"Interpretable inverse-designed cavity for on-chip nonlinear photon pair generation","authors":"Zhetao Jia, Wayesh Qarony, Jagang Park, Sean Hooten, Difan Wen, Yertay Zhiyenbayev, Matteo Seclì, Walid Redjem, Scott Dhuey, Adam Schwartzberg, Eli Yablonovitch, and Boubacar Kanté","doi":"10.1364/optica.502732","DOIUrl":"https://doi.org/10.1364/optica.502732","url":null,"abstract":"Inverse design is a powerful tool in wave physics for compact, high-performance devices. To date, applications in photonics have mostly been limited to linear systems and it has rarely been investigated or demonstrated in the nonlinear regime. In addition, the “black box” nature of inverse design techniques has hindered the understanding of optimized inverse-designed structures. We propose an inverse design method with interpretable results to enhance the efficiency of on-chip photon generation rate through nonlinear processes by controlling the effective phase-matching conditions. We fabricate and characterize a compact, inverse-designed device using a silicon-on-insulator platform that allows a spontaneous four-wave mixing process to generate photon pairs at a rate of 1.1 MHz with a coincidence to accidental ratio of 162. Our design method accounts for fabrication constraints and can be used for scalable quantum light sources in large-scale communication and computing applications.","PeriodicalId":19515,"journal":{"name":"Optica","volume":"55 26","pages":""},"PeriodicalIF":10.4,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72364947","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}
OpticaPub Date : 2023-11-08DOI: 10.1364/optica.511924
A. W. Goodwin-Jones, Ricardo Cabrita, M. Korobko, M. Beuzekom, Daniel D. Brown, V. Fafone, J. V. Heijningen, A. Rocchi, M. Schiworski, M. Tacca
{"title":"Transverse Mode Control in Quantum Enhanced Interferometers: A Review and Recommendations for a New Generation","authors":"A. W. Goodwin-Jones, Ricardo Cabrita, M. Korobko, M. Beuzekom, Daniel D. Brown, V. Fafone, J. V. Heijningen, A. Rocchi, M. Schiworski, M. Tacca","doi":"10.1364/optica.511924","DOIUrl":"https://doi.org/10.1364/optica.511924","url":null,"abstract":"Adaptive optics has made significant advancement over the past decade, becoming the essential technology in a wide variety of applications, particularly in the realm of quantum optics. One key area of impact is gravitational-wave detection, where quantum correlations are distributed over kilometer-long distances by beams with hundreds of kilowatts of optical power. Decades of development were required to develop robust and stable techniques to sense mismatches between the Gaussian beams and the resonators, all while maintaining the quantum correlations. Here we summarize the crucial advancements in transverse mode control required for gravitational-wave detection. As we look towards the advanced designs of future detectors, we highlight key challenges and offer recommendations for the design of these instruments. We conclude the review with a discussion of the broader application of adaptive optics in quantum technologies: communication, computation, imaging and sensing.","PeriodicalId":19515,"journal":{"name":"Optica","volume":"4 1","pages":""},"PeriodicalIF":10.4,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139282795","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}
OpticaPub Date : 2023-11-07DOI: 10.1364/optica.502119
Sophie Brasselet and Miguel A. Alonso
{"title":"Polarization microscopy: from ensemble structural imaging to single-molecule 3D orientation and localization microscopy","authors":"Sophie Brasselet and Miguel A. Alonso","doi":"10.1364/optica.502119","DOIUrl":"https://doi.org/10.1364/optica.502119","url":null,"abstract":"Optical contrasts in microscopy are sensitive to light polarization, whose interaction with molecular dipoles provides an important lever for probing molecular orientation. Polarization microscopy has evolved considerably during the last decade, integrating strategies ranging from traditional linear dichroism to single-molecule orientation and localization imaging. This review aims to provide a summary of concepts and techniques behind orientation and structural imaging at the molecular level, from ensemble microscopy in 2D to single-molecule super-resolution microscopy in 3D.","PeriodicalId":19515,"journal":{"name":"Optica","volume":"45 4","pages":""},"PeriodicalIF":10.4,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71518006","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}