Journal of Optical Microsystems最新文献_第3页

Multispectral confocal endomicroscopy in lung biopsy guidance 多光谱共聚焦内镜在肺活检中的指导作用

Journal of Optical Microsystems Pub Date : 2023-01-01 DOI: 10.1117/1.JOM.3.1.011002

Zhenye Li, Gregory J. Woodhead, A. Rouse, Robert Klein, M. C. Larson, A. Gmitro

引用次数: 0

Review of endomicroscopic imaging with coherent manipulation of light through an ultrathin probe 通过超薄探针对光进行相干操作的内镜成像综述

Journal of Optical Microsystems Pub Date : 2023-01-01 DOI: 10.1117/1.JOM.3.1.011004

Jaeyeon Oh, C. Lee, Gookho Song, Mooseok Jang

引用次数: 0

Optical microsystems for disease diagnosis: an interview with Guillermo Tearney 光学微系统用于疾病诊断:Guillermo Tearney访谈

Journal of Optical Microsystems Pub Date : 2022-12-20 DOI: 10.1117/1.jom.2.4.040401

H. Leung

引用次数: 0

Microsphere assistance in interference microscopy with high numerical aperture objective lenses 高数值孔径物镜干涉显微镜中的微球辅助

Journal of Optical Microsystems Pub Date : 2022-10-01 DOI: 10.1117/1.JOM.2.4.044501

Lucie Hüser, T. Pahl, M. Künne, P. Lehmann

{"title":"Microsphere assistance in interference microscopy with high numerical aperture objective lenses","authors":"Lucie Hüser, T. Pahl, M. Künne, P. Lehmann","doi":"10.1117/1.JOM.2.4.044501","DOIUrl":"https://doi.org/10.1117/1.JOM.2.4.044501","url":null,"abstract":"Abstract. Various attempts have been discussed to overcome the lateral resolution limit and thus to enlarge the fields of application of optical interference microscopy. Microsphere-assisted microscopy and interferometry have proven that the imaging of structures well below Abbe’s resolution limit through near-field assistance is possible if microspheres are placed on the measured surface and utilized as near-field assisting imaging elements. The enhancement of the numerical aperture (NA) by the microspheres as well as photonic nanojets was identified to explain the resolution enhancement, but also whispering gallery modes and evanescent waves are assumed to have an influence. Up to now, to the best of our knowledge, there is no complete understanding of the underlying mechanisms and no model enabling to examine ideal imaging parameters. This contribution is intended to clarify how much the lateral resolution of an already highly resolving Linnik interferometer equipped with 100 × NA 0.9 objective lenses can be further improved by microspheres. Our simulation model developed so far is based on rigorous near-field calculations combined with the diffraction-limited illumination and imaging process in an interference microscope. Here, we extend the model with respect to microsphere-assisted interference microscopy providing a rigorous simulation of the scattered electric field directly above the sphere. Simulation and experimental results will be compared in the three-dimensional spatial frequency domain and discussed in context with ray-tracing computations to achieve an in-depth understanding of the underlying mechanism of resolution enhancement by the microsphere.","PeriodicalId":127363,"journal":{"name":"Journal of Optical Microsystems","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131485900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Low-loss three-dimensional printed ridge waveguides using stereolithography 采用立体光刻技术的低损耗三维印刷脊波导

Journal of Optical Microsystems Pub Date : 2022-10-01 DOI: 10.1117/1.JOM.2.4.043501

Helio Ramollari, P. Measor

引用次数: 1

Silicon photonic microelectromechanical systems add-drop ring resonator in a foundry process 硅光子微机电系统在铸造工艺中添加了跌落环谐振器

Journal of Optical Microsystems Pub Date : 2022-10-01 DOI: 10.1117/1.JOM.2.4.044001

H. Sattari, A. Takabayashi, Pierre Edinger, P. Verheyen, K. Gylfason, W. Bogaerts, N. Quack

{"title":"Silicon photonic microelectromechanical systems add-drop ring resonator in a foundry process","authors":"H. Sattari, A. Takabayashi, Pierre Edinger, P. Verheyen, K. Gylfason, W. Bogaerts, N. Quack","doi":"10.1117/1.JOM.2.4.044001","DOIUrl":"https://doi.org/10.1117/1.JOM.2.4.044001","url":null,"abstract":"Abstract. Photonic add-drop filters are crucial components for the implementation of wavelength division multiplexing (WDM) in fiber-optic communication systems. The recent progress in photonic integration has shown the potential to integrate photonic add-drop filters alongside high-performance photonic building blocks on a chip to construct compact and complex photonic-integrated circuits for WDM. Typically, implementations are based on micro-ring resonators with integrated heaters or free carrier dispersion-based modulators to adjust the filter wavelength. However, heaters suffer from high power consumption, and free carriers result in optical absorption losses, limiting the scalability toward very-large-scale circuits. We demonstrate the design, simulation, fabrication, and experimental characterization of a compact add-drop filter based on a vertically movable, MEMS-actuated ring resonator. The MEMS-actuated add-drop filter is implemented in IMEC’s iSiPP50G silicon photonics platform and realized using a short post-processing flow to safely release the suspended MEMS structures in a wafer-level compatible process. The filter exhibits a through port linewidth of ∼1 nm (124.37 GHz) at 1557.1 nm, and it retains a port extinction of 20 dB and a port isolation of >50 dB under 27 V of actuation voltage. The combination of low-power consumption and a compact footprint demonstrates the suitability for very-large-scale integration in photonic circuits.","PeriodicalId":127363,"journal":{"name":"Journal of Optical Microsystems","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129282666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Characterization of two-photon-polymerization lithography structures via Raman spectroscopy and nanoindentation 利用拉曼光谱和纳米压痕表征双光子聚合光刻结构

Journal of Optical Microsystems Pub Date : 2022-07-01 DOI: 10.1117/1.JOM.2.3.033501

Severin Schweiger, Tim Schulze, S. Schlipf, P. Reinig, H. Schenk

引用次数: 4

Critical analysis of in-plane free-space light beam coupling using photonic curved micromirrors 利用光子弯曲微镜进行面内自由空间光束耦合的临界分析

Journal of Optical Microsystems Pub Date : 2022-07-01 DOI: 10.1117/1.JOM.2.3.034001

Y. Sabry, M. Erfan, D. Khalil, T. Bourouina

{"title":"Critical analysis of in-plane free-space light beam coupling using photonic curved micromirrors","authors":"Y. Sabry, M. Erfan, D. Khalil, T. Bourouina","doi":"10.1117/1.JOM.2.3.034001","DOIUrl":"https://doi.org/10.1117/1.JOM.2.3.034001","url":null,"abstract":"Abstract. Free-space coupling of Gaussian light beams using flat and curved photonic microelectromechanical systems mirrors was analyzed in detail. The theoretical background and the non-ideal effects, such as limited micromirror extent, asymmetry in the curvature of spherical micromirrors, misaligned axes, and micromirror surface irregularities, were analyzed. The derived formulas were used to study and compare theoretically and experimentally the behavior of flat (one-dimensional), cylindrical (two-dimensional), and spherical (three-dimensional) micromirrors. The analysis focused on the regime of dimensions in which the curved micromirrors radius of curvature is comparable to the incident beam Rayleigh range, also corresponding to a reference spot size. A transfer matrix-based field and power coupling coefficients were derived for general micro-optical systems accounting for different matrix parameters in the tangential and sagittal planes of the microsystem taking into account the possible non-idealities. The results were presented in terms of normalized quantities such that the findings are general and can be applied to different situations. In addition, silicon micromirrors were fabricated with controlled shapes and used to experimentally analyze the coupling efficiency at the visible and near-infrared wavelengths.","PeriodicalId":127363,"journal":{"name":"Journal of Optical Microsystems","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114281757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biologically inspired intraoral camera for multifunctional dental imaging 生物学启发的口腔内多功能牙科成像相机

Journal of Optical Microsystems Pub Date : 2022-07-01 DOI: 10.1117/1.JOM.2.3.031202

Kisoo Kim, Kyung-Won Jang, Hyun-Kyung Kim, Sue Bean Cho, Ki-Hun Jeong

引用次数: 1

Compact zooming optical systems for panoramic and telescopic applications based on curved image sensor 基于曲面图像传感器的全景和伸缩应用的紧凑变焦光学系统

Journal of Optical Microsystems Pub Date : 2022-07-01 DOI: 10.1117/1.JOM.2.3.031204

Do Hyeon Kim, Gil Ju Lee, Y. Song

{"title":"Compact zooming optical systems for panoramic and telescopic applications based on curved image sensor","authors":"Do Hyeon Kim, Gil Ju Lee, Y. Song","doi":"10.1117/1.JOM.2.3.031204","DOIUrl":"https://doi.org/10.1117/1.JOM.2.3.031204","url":null,"abstract":"Abstract. Biological eyes in nature have strongly inspired novel optical systems. In this regard, imaging systems mimicking fish eyes and human eyes have been reported for having a wide field-of-view (FoV) and relatively higher magnification properties, respectively. However, most of these systems have complex lens configurations because of their flat image sensors. As these optical systems are bulky, heavy, and expensive, they have limited application in small devices (e.g., drones and mobile phones). In addition to a simplistic design, multi-functionality is essential for broad applications. Therefore, this study proposes a compact zooming optical system (CZOS) that combines the properties of natural vision systems (i.e., human and fish eyes) using a curved focal plane. The CZOS controls the zoom range through the modification of the distances between the single front lens (i.e., negative meniscus) and dual rear lens (i.e., bi-convex/positive meniscus lenses) groups. In the proposed system, the panoramic mode had an FoV of 200 deg and a magnification of 0.23, whereas the conversion of the system to the high magnification mode increased the magnification over two times with an FoV of 70 deg. These promising results demonstrate that the proposed simple imaging system is applicable to small-scale electronics.","PeriodicalId":127363,"journal":{"name":"Journal of Optical Microsystems","volume":"45 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129388462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1