Dr. Etsuko Mieda Profile

Dr. Etsuko Mieda

at Subaru Telescope NAOJ

SPIE Involvement:

Author

Publications (15)

Proceedings Article | 13 December 2020 Poster + Paper

Alignment and tolerancing of a mirror relay system for a newly upgraded LGS system on Subaru Telescope

Marita Morris, Yosuke Minowa, Yoshiyuki Doi, Hiroshige Yoshida, Etsuko Mieda

Proceedings Volume 11448, 114486S (2020) https://doi.org/10.1117/12.2563168

KEYWORDS: Mirrors, Telescopes, Relays, Tolerancing, Alignment procedures, Laser guide stars, Laser sources, Systems modeling, Beam expanders, Device simulation

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Proceedings Article | 13 December 2020 Presentation + Paper

Overview of AO activities at Subaru Telescope

Yoshito Ono, Yosuke Minowa, Olivier Guyon, Christophe Clergeon, Etsuko Mieda, Julien Lozi, Takashi Hattori, Masayuki Akiyama

Proceedings Volume 11448, 114480K (2020) https://doi.org/10.1117/12.2561139

KEYWORDS: Adaptive optics, Telescopes, Near infrared, Imaging systems, Exoplanets, Control systems, Fiber lasers, Visible radiation, Imaging spectroscopy, Near infrared spectroscopy

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Proceedings Article | 13 December 2020 Presentation + Paper

ULTIMATE-START: Subaru tomography adaptive optics research experiment project overview

Masayuki Akiyama, Yosuke Minowa, Yoshito Ono, Koki Terao, Hajime Ogane, Kaoru Oomoto, Yuta Iizuka, Shin Oya, Etsuko Mieda, Tomoyasu Yamamuro

Proceedings Volume 11448, 114481O (2020) https://doi.org/10.1117/12.2560872

KEYWORDS: Adaptive optics, Tomography, Wavefront sensors, Near infrared, Camera shutters, Cameras, Spectrographs, Optical tomography, Optical calibration, Telescopes

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SPIE Journal Paper | 24 September 2018 Open Access

Multiconjugate adaptive optics simulator for the Thirty Meter Telescope: design, implementation, and results

Etsuko Mieda, Jean-Pierre Véran, Matthias Rosensteiner, Paolo Turri, David Andersen, Glen Herriot, Olivier Lardière, Paolo Spanò

JATIS, Vol. 4, Issue 04, 049002, (September 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.4.049002

KEYWORDS: Adaptive optics, Device simulation, Sodium, Point spread functions, Optical simulations, Thirty Meter Telescope, Turbulence, Cameras, Optical instrument design, Telescopes

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Proceedings Article | 20 September 2018 Paper

Subaru AO188 upgrade phase 1: integration of the new real-time system

Christophe Clergeon, Yosuke Minowa, Olivier Guyon, Yoshito Ono, Etsuko Mieda, Nour Skaf, Hiroshige Yoshida, Yukata Hayano, Takashi Hattori, Kiaina Schubert, Ananya Sahoo, Julien Lozi, Sebastien Vievard

Proceedings Volume 10703, 1070337 (2018) https://doi.org/10.1117/12.2314254

KEYWORDS: Adaptive optics, Avalanche photodetectors, Real-time computing, Electronics, Telescopes, Wavefront sensors, Actuators, Control systems, Human-machine interfaces, Matrices

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Proceedings Article | 12 July 2018 Paper

Current status of the laser guide star upgrade at Subaru Telescope

Etsuko Mieda, Yoko Tanaka, Matthew Wung, Yosuke Minowa, Christophe Clergeon, Yoshito Ono, Takashi Hattori, Yutaka Hayano, Masayuki Akiyama, Francois Rigaut, Celine d'Orgeville

Proceedings Volume 10703, 107033P (2018) https://doi.org/10.1117/12.2314093

KEYWORDS: Telescopes, Adaptive optics, Laser guide stars, Fiber lasers, Laser applications, Lasers

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Proceedings Article | 10 July 2018 Paper

Upgrading the MMT AO system with a near-infrared pyramid wavefront sensor

Siqi Liu, Suresh Sivanandam, Shaojie Chen, Masen Lamb, Adam Butko, Jean-Pierre Veran, Phil Hinz, Etsuko Mieda, Tim Hardy, Olivier Lardiere, Eric Shore

Proceedings Volume 10703, 107032K (2018) https://doi.org/10.1117/12.2304584

KEYWORDS: Adaptive optics, Wavefront sensors, Prisms, Stars, Wavefronts, Near infrared, Monte Carlo methods, Modulation, Electron multiplying charge coupled devices, Sensors

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Proceedings Article | 10 July 2018 Presentation + Paper

On-going and future AO activities on Subaru Telescope

Yoshito Ono, Yosuke Minowa, Christophe Clergeon, Etsuko Mieda, Olivier Guyon, Julien Lozi, Masayuki Akiyama, Francois Rigaut, Yutaka Hayano, Shin Oya

Proceedings Volume 10703, 107030M (2018) https://doi.org/10.1117/12.2312379

KEYWORDS: Adaptive optics, Telescopes, Real-time computing, Tomography, Near infrared, Laser systems engineering, Wavefront sensors, Imaging spectroscopy

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Proceedings Article | 5 September 2017 Paper

Optical design of infrared pyramid wavefront sensor for the MMT

Shaojie Chen, Suresh Sivanandam, Siqi Liu, Jean-Pierre Veran, Phil Hinz, Etsuko Mieda, Tim Hardy, Olivier Lardiere

Proceedings Volume 10401, 104011H (2017) https://doi.org/10.1117/12.2273290

KEYWORDS: Wavefront sensors, Prisms, Adaptive optics, Wavefronts, Optical design, Mirrors, Telescopes, Infrared telescopes, Infrared radiation, Optical instrument design

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Proceedings Article | 27 July 2016 Paper

On the verification of NFIRAOS algorithms and performance on the HeNOS bench

Matthias Rosensteiner, Paolo Turri, Etsuko Mieda, Jean-Pierre Véran, David Andersen, Glen Herriot

Proceedings Volume 9909, 990949 (2016) https://doi.org/10.1117/12.2233054

KEYWORDS: Adaptive optics, Reconstruction algorithms, Device simulation, Calibration, Deformable mirrors, Actuators, Turbulence, Cameras, Zernike polynomials, Tomography

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Proceedings Article | 26 July 2016 Paper

Testing the pyramid truth wavefront sensor for NFIRAOS in the lab

Etsuko Mieda, Matthias Rosensteiner, Maaike van Kooten, Jean-Pierre Veran, Olivier Lardiere, Glen Herriot

Proceedings Volume 9909, 99091J (2016) https://doi.org/10.1117/12.2231838

KEYWORDS: Adaptive optics, Wavefront sensors, Modulation, Sodium, Mirrors, Device simulation, Prisms, Wavefronts, Monochromatic aberrations, Charge-coupled devices

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Proceedings Article | 28 July 2014 Paper

The infrared imaging spectrograph (IRIS) for TMT: volume phase holographic grating performance testing and discussion

Shaojie Chen, Elliot Meyer, Shelley Wright, Anna Moore, James Larkin, Jerome Maire, Etsuko Mieda, Luc Simard

Proceedings Volume 9147, 91478X (2014) https://doi.org/10.1117/12.2055609

KEYWORDS: Diffraction gratings, IRIS Consortium, Diffraction, Optical design, Astronomy, Spectrographs, Polarization, Spectral resolution, Modulation, Thirty Meter Telescope

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Proceedings Article | 28 July 2014 Paper

The infrared imaging spectrograph (IRIS) for TMT: reflective ruled diffraction grating performance testing and discussion

Elliot Meyer, Shaojie Chen, Shelley Wright, Anna Moore, James Larkin, Luc Simard, Jerome Marie, Etsuko Mieda, Jacob Gordon

Proceedings Volume 9147, 91479C (2014) https://doi.org/10.1117/12.2056839

KEYWORDS: Diffraction gratings, Reflectivity, IRIS Consortium, Polarization, Diffraction, Spectrographs, Astronomy, Spectral resolution, Cameras, Optical design

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We present the efficiency of near-infrared reflective ruled diffraction gratings designed for the InfraRed Imaging Spectrograph (IRIS). IRIS is a first light, integral field spectrograph and imager for the Thirty Meter Telescope (TMT) and narrow field infrared adaptive optics system (NFIRAOS). IRIS will operate across the near-infrared encompassing the ZYJHK bands (~0.84 - 2.4μm) with multiple spectral resolutions. We present our experimental setup and analysis of the efficiency of selected reflective diffraction gratings. These measurements are used as a comparison sample against selected candidate Volume Phase Holographic (VPH) gratings (see Chen et al., this conference). We investigate the efficiencies of five ruled gratings designed for IRIS from two separate vendors. Three of the gratings accept a bandpass of 1.19-1.37μm (J band) with ideal spectral resolutions of R=4000 and R=8000, groove densities of 249 and 516 lines/mm, and blaze angles of 9.86° and 20.54° respectively. The other two gratings accept a bandpass of 1.51-1.82μm (H Band) with an ideal spectral resolution of R=4000, groove density of 141 lines/mm, and blaze angle of 9.86°. The fraction of flux in each diffraction mode was compared to both a pure reflection mirror as well as the sum of the flux measured in all observable modes. We measure the efficiencies off blaze angle for all gratings and the efficiencies between the polarization transverse magnetic (TM) and transverse electric (TE) states. The peak reflective efficiencies are 98.90 ± 3.36% (TM) and 84.99 ± 2.74% (TM) for the H-band R=4000 and J-band R=4000 respectively. The peak reflective efficiency for the J-band R=8000 grating is 78.78 ± 2.54% (TE). We find that these ruled gratings do not exhibit a wide dependency on incident angle within ±3°. Our best-manufactured gratings were found to exhibit a dependency on the polarization state of the incident beam with a ~10-20% deviation, consistent with the theoretical efficiency predictions. This work will significantly contribute to the selection of the final grating type and vendor for the IRIS optical system, and are also pertinent to current and future near-infrared astronomical spectrographs.

Proceedings Article | 22 July 2014 Paper

SLODAR instrument for characterizing an Arctic site: overview of the experimental method, design, and performance

Etsuko Mieda, Jérôme Maire, James Graham, Shelley Wright, Dae-Sik Moon

Proceedings Volume 9145, 91453K (2014) https://doi.org/10.1117/12.2056915

KEYWORDS: Turbulence, Telescopes, Microlens array, Collimators, Wind measurement, Cameras, Stars, Sensors, Astronomy, Signal to noise ratio

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Proceedings Article | 22 July 2014 Paper

Optical turbulence profiling with SloDAR in the Canadian High Arctic

Jérôme Maire, Etsuko Mieda, Eric Steinbring, Richard Murowinski, James Graham, Raymond Carlberg, Shelley Wright, Nicholas Law, Suresh Sivanandam

Proceedings Volume 9145, 91453J (2014) https://doi.org/10.1117/12.2056588

KEYWORDS: Telescopes, Turbulence, Optical turbulence, Astronomy, Wavefront sensors, Image quality, Atmospheric sensing, Astrophysics, Atmospheric turbulence, Space telescopes

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Showing 5 of 15 publications

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