Microfabrication of Concave Micromirror for Microbial Cell Trapping Using K?hler Illumination by XeF2 Vapor Etching

Matsutani, Akihiro; Sato, Muneharu; Hasebe, Koichi; Takada, Ayako

doi:10.18494/sam.2019.2235

Cited by 2 publications

(1 citation statement)

References 15 publications

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“…The author is also involved in the development and experimentation of cell trapping at the focal spots of concave micromirrors as a device technology for controlling a single cell, as shown in figure 2 [2]. The concept behind this is the trapping of cells using a concave micromirror array under Köhler epi-illumination.…”

Section: Introductionmentioning

confidence: 99%

Direct observation of spherical aberration under microscope using concave micromirrors

Matsutani

2020

Eur. J. Phys.

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Many students majoring in science may not have a chance to directly observe spherical aberration or understand its mechanism during their study of optics. In this paper, the author reports a method of directly observing spherical aberration under a microscope by comparing focal spot images of spherical mirrors and parabolic mirrors made of celluloid concave micromirrors, fabricated by Suzuki’s universal microprinting method, invented in Japan in 1930. The application of concave micromirrors to the optical-axis alignment of a microscope light source is also explained. Furthermore, the application of concave micromirrors to a substrate of micro-watch glass, used in microorganism microscopy, is also explained.

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Section: Introductionmentioning

confidence: 99%

Direct observation of spherical aberration under microscope using concave micromirrors

Matsutani

2020

Eur. J. Phys.

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Laser writing of parabolic micromirrors with a high numerical aperture for optical trapping and rotation

Plaskocinski,

Arita,

Bruce

et al. 2023

Applied Physics Letters

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On-chip optical trapping systems allow for high scalability and lower the barrier to access. Systems capable of trapping multiple particles typically come with high cost and complexity. Here, we present a technique for making parabolic mirrors with micrometer-size dimensions and high numerical apertures (NA > 1). Over 350 mirrors are made by simple CO2 laser ablation of glass followed by gold deposition. We fabricate mirrors of arbitrary diameter and depth at a high throughput rate by carefully controlling the ablation parameters. We use the micromirrors for three-dimensional optical trapping of microbeads in solution, achieving a maximum optical trap stiffness of 52 pN/μm/W. We, then, further demonstrate the viability of the mirrors as in situ optical elements through the rotation of a vaterite particle using reflected circularly polarized light. The method used allows for rapid and highly customizable fabrication of dense optical arrays.

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Microfabrication of Concave Micromirror for Microbial Cell Trapping Using K?hler Illumination by XeF2 Vapor Etching

Cited by 2 publications

References 15 publications

Direct observation of spherical aberration under microscope using concave micromirrors

Direct observation of spherical aberration under microscope using concave micromirrors

Laser writing of parabolic micromirrors with a high numerical aperture for optical trapping and rotation

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