Dr. Naofumi Fujishiro Profile

Dr. Naofumi Fujishiro

SPIE Involvement:

Author

Publications (31)

Proceedings Article | 22 May 2023 Poster + Paper

Cell culture experiment using a Mars soil simulant for the detection of extraterrestrial life

Keigo Enya, Satoshi Sasaki, Naofumi Fujishiro, Atsuo Miyakawa

Proceedings Volume 12327, 123271J (2023) https://doi.org/10.1117/12.2655550

KEYWORDS: Mars, Yeast, Liquids, Microorganisms, Solids, Organisms, Statistical analysis, Microscopes

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We describe a cell culture experiment utilizing Mars soil simulant and yeast as a study for extraterrestrial-microorganism detection in future. The following conditions were combined to create different sample configurations: solid medium (agar plate) or liquid medium, with the Mars soil simulant (100 mg) or without, and various yeast cell densities (30 μL of a suspension of yeast prepared to achieve dilution rates of 10⁻², 10⁻³, 10⁻⁴, and 10⁻⁵ from the original suspension). For redundancy, two samples were created for each setting. On each agar plate, colonies of yeast cells were visible. In contrast, only samples created with a dilution rate of 10⁻² and 10⁻³ were proven to show the presence of yeast proliferating in liquid media. The agar plates were observed via imaging using a digital camera. Colony counting was conducted using functions of the ImageJ software; the yeast density in the original suspension was estimated to be 2.5 × 10⁷ colony forming units (CFU)/mL. Based on the results of cell culture on the agar plates, the detection limit that was experimentally demonstrated in this work amounted to 7.5 CFU/100 mg of soil, which corresponded to 75 CFU/g of soil. Thus, we confirmed that the Mars soil simulant reduced the number of colonies to one-third of that detected without the Mars soil simulant. In the discussion, we pointed out that the method that used the solid media has potential to provide high sensitivity using a simple, compact, and lightweight hardware. Microscope with no optics is also discussed. The lower limit of detection obtained in this study was compared with those obtained using other methods. We compared and discussed extraterrestrial life search based on (1) in situ experiments by unmanned missions, (2) analysis of samples returned to Earth, and (3) dedicated in situ analyses by manned bases located on extraterrestrial sites in the future. The perspectives discussed herein are applicable not only to the samples from Mars but also to the samples from other solar system bodies. Identifying cell culture conditions for these applications is a critical difficulty. Notably, it is a possible scenario that cell culture (although challenging) will become necessary to obtain clear evidence of extraterrestrial life. We also note that in cases where there are multiple species of microorganisms, it can happen that microorganisms that fit the culture conditions used in an experiment are selectively cultured and detected, even if the culture conditions for each species are not fully discovered. It is worthwhile to conduct exploration in advance designed with the intention of determining culture conditions with the plan to culture microorganisms in the future.

Proceedings Article | 22 May 2023 Poster + Paper

Spectral disperser made of infrared-transmitting glass

Keigo Enya, Naofumi Fujishiro, Mitsuru Tomita, Isao Yoda, Takuro Kikuchi, Takuhiko Koundou

Proceedings Volume 12327, 123271D (2023) https://doi.org/10.1117/12.2645848

KEYWORDS: Prototyping, Glasses, Coating, Refractive index, Prisms, Optical gratings, Manufacturing, Transmittance, Coating thickness

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SPIE Journal Paper | 11 March 2021 Open Access

Mid-infrared spectrometer and camera for the Origins Space Telescope

Itsuki Sakon, Thomas Roellig, Kimberly Ennico-Smith, Taro Matsuo, Yuji Ikeda, Tomoyasu Yamamuro, Keigo Enya, Takehiko Wada, Mitsunobu Kawada, Aoi Takahashi, Yuki Sarugaku, Naofumi Fujishiro, Naoshi Murakami, Jun Nishikawa, Takayuki Kotani, Shohei Goda, Masayuki Ido, Satoshi Itoh, Takahiro Tsuboi, Takahiro Sumi, Masatsugu Kamiura, Takeo Manome, Naoto Iida, Kentaro Yanagibashi, Thomas Greene, Bernardus Helvensteijn, Lynn Hofland, Roy Johnson, Ali Kashani, Emmett Quigley, Robert McMurray, Hanae Inami, Denis Burgarella, the Origins Space Telescope mission concept study team

JATIS, Vol. 7, Issue 01, 011013, (March 2021) https://doi.org/10.1117/12.10.1117/1.JATIS.7.1.011013

KEYWORDS: Sensors, Spectroscopy, Mirrors, Cameras, Mid-IR, Space telescopes, Electronics, Telescopes, Detector arrays, Mercury cadmium telluride

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The mid-infrared spectrometer and camera transit spectrometer (MISC-T) is one of the three baseline instruments for Origins Space Telescope (Origins) and provides the capability to assess the habitability of nearby exoplanets and search for signs of life. MISC-T employs a densified pupil optical design, and HgCdTe and Si:As detector arrays. This optical design allows the instrument to be relatively insensitive to minor line-of-sight pointing drifts and telescope aberrations, and the detectors do not require a sub-Kelvin refrigerator. MISC-T has three science spectral channels that share the same field-of-view by means of beam splitters, and all channels are operated simultaneously to cover the full spectral range from 2.8 to 20 μm at once with exquisite stability and precision (<5 ppm between 2.8 to 11 μm, <20 ppm between 11 and 20 μm). A Lyot-coronagraph-based tip–tilt sensor located in the instrument fore-optics uses the light reflected by a field stop, which corresponds to 0.3% of the light from the target, to send fine pointing information to the field steering mirror in the Origins telescope. An additional MISC Wide Field Imager (WFI) is studied as an upscope option for the Origins. MISC-WFI offers a wide field imaging (3 ′ × 3 ′ ) and low-resolution spectroscopic capability with filters and grating-prisms (grisms) covering 5 to 28 μm. The imaging capability of the MISC-WFI will be used for general science objectives. The low-resolution spectroscopic capability in MISC-WFI with a resolving power R ( = λ / Δλ) of a few hundreds will be used to measure the mid-infrared dust features and ionic lines at z up to ∼1 in the Origins mission’s Rise of Metals and Black Hole Feedback programs. The MISC-WFI also serves as a focal plane pointing and guiding instrument for the observatory, including when the MISC-T channel is performing its exoplanet spectroscopy observations.

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Proceedings Article | 20 April 2020 Presentation + Paper

A wideband spectrometer for space-borne telescopes

K. Enya, N. Fujishiro

Proceedings Volume 11353, 1135328 (2020) https://doi.org/10.1117/12.2560340

KEYWORDS: Spectroscopy, Spectrometer engineering, Spectral resolution, Optical design, Telescopes, Space telescopes, Reflectivity, Mirrors, Image scaling, Sensors

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Proceedings Article | 21 August 2018 Paper

Optical/mechanical design of the focal plane receiver of the Ganymede Laser Altimeter (GALA) for the Jupiter Icy Moons Explorer (JUICE) mission

K. Enya, M. Kobayashi, K. Ishibashi, S. Kobayashi, N. Namiki, H. Araki, S. Tazawa, H. Noda, S. Oshigami, S. Kashima, M. Utsunomiya, J. Kimura, K. Touhara, T. Yamawaki, S. Iwamura, N. Fujishiro, Y. Matsumoto, T. Iida, H. Nakagawa, H. Imai, O. Kirino, C. Hatakeyama, T. Yokozawa, Y. Sato, K. Kojima, N. Matsui, K. Tanimoto, M. Fujii, C. Althaus, S. Del Togno, J. Jänchen, B. Borgs, T. Behnke, H. G. Lötzke, R. Kallenbach, K. Lingenauber, H. Hussmann

Proceedings Volume 10698, 106984L (2018) https://doi.org/10.1117/12.2312564

KEYWORDS: Optical design, Receivers, Jupiter, Bandpass filters, Avalanche photodetectors, Mechanical engineering, Space telescopes, Optical fibers

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Proceedings Article | 24 July 2018 Presentation + Paper

The mid-infrared imager, spectrometer, coronagraph (MISC) for the Origins Space telescope (OST)

Itsuki Sakon, Thomas Roellig, Kimberly Ennico-Smith, Taro Matsuo, Yuji Ikeda, Tomoyasu Yamamuro, Naofumi Fujishiro, Keigo Enya, Aoi Takahashi, Takehiko Wada, Olivier Guyon, Takayuki Kotani, Jun Nishikawa, Naoshi Murakami, Yuki Sarugaku, Denis Burgarella

Proceedings Volume 10698, 1069817 (2018) https://doi.org/10.1117/12.2314177

KEYWORDS: Spectroscopy, Coronagraphy, Space telescopes, Imaging systems, Mid-IR, Imaging spectroscopy, Exoplanets, Sensors, Telescopes

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The Mid-infrared Imager, Spectrometer, Coronagraph (MISC) is one of the instruments studied both for the Origins Space Telescope (OST) Mission Concept 1 and 2. The MISC for OST Mission Concept 1 consists of the MISC imager and spectrometer module (MISC I and S), the MISC coronagraph module (MISC COR) and the MISC transit spectrometer module (MISC TRA). The MISC I and S offers (1) a wide field (3 arcminx3 arcmin) imaging and low-resolution spectroscopic capability with filters and grisms for 6-38 μm, (2) a medium-resolution (R~1,000) Integral Field Unit (IFU) spectroscopic capability for 5- 38 μm and (3) a high-resolution (R~25,000) slit spectroscopic capability for 12-18 μm and 25-36 μm. The MISC COR module employs PIAACMC coronagraphy method and covers 6-38 μm achieving 10-7 contrast at 0.5 arcsec from the central star. The MISC TRA module employs a densified pupil spectroscopic design to achieve 3-5 ppm of spectro-photometric stability and covers 5-26 μm with R=100-300. The MISC for OST Mission Concept 2 consists of the MISC wide field imager module (MISC WFI) and the MISC transit Spectrometer module (MISC TRA). The MISC WFI offers a wide field (3 arcmin ×3 arcmin) imaging and low-resolution spectroscopic capabilities with filters and grisms for 6-28μm. The MISC TRA module in the OST Mission Concept 2 also employs the densified pupil spectroscopic design to achieve <5 ppm of spectro-photometric stability and covers 4-22 μm with R=100-300. The highest ever spectrophotometric stability achieved by MISC TRA enables to detect bio-signatures (e.g., ozone, water, and methane) in habitable worlds in both primary and secondary transits of exoplanets and makes the OST a powerful tool to bring an revolutionary progress in exoplanet sciences. Combined with the spectroscopic capability in the FIR provided by other OST instruments, the MISC widens the wavelength coverage of OST down to 5μm, which makes the OST a powerful tool to diagnose the physical and chemical condition of the ISM using dust features, molecules lines and atomic and ionic lines. The MISC also provides the OST with a focal plane guiding function for the other OST science instruments as well as its own use.

Proceedings Article | 10 July 2018 Paper

PIAA coronagraph for Origins Space telescope (OST) mid-infrared imager, spectrometer, coronagraph (MISC) instrument

N. Fujishiro, I. Sakon, K. Enya, O. Guyon, J. Nishikawa, N. Murakami, T. Kotani, M. Tamura, A. Takahashi, T. Roellig, K. Ennico-Smith

Proceedings Volume 10706, 107065N (2018) https://doi.org/10.1117/12.2313066

KEYWORDS: Coronagraphy, Apodization, Mirrors, Geometrical optics, Space telescopes, Segmented mirrors, Mid-IR, Diffraction, Imaging systems, Spectroscopy

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Proceedings Article | 10 July 2018 Paper

High-contrast apodization baffle for instruments onboard solar system exploration missions

K. Enya, A. Yamazaki, H. Nakagawa, N. Terada, K. Seki, N. Fujishiro, A. Motoyoshi, O. Moriwaki

Proceedings Volume 10706, 107065I (2018) https://doi.org/10.1117/12.2312577

KEYWORDS: Apodization, Solar system, Mars, Aluminum, Manufacturing, Exoplanets, Remote sensing

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Proceedings Article | 20 November 2017 Open Access

Free-form reflective optics for mid-infrared camera and spectrometer on board SPICA

Naofumi Fujishiro, Hirokazu Kataza, Takehiko Wada, Yuji Ikeda, Itsuki Sakon, Shinki Oyabu

Proceedings Volume 10564, 105640G (2017) https://doi.org/10.1117/12.2309046

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Proceedings Article | 20 February 2017 Paper

Design and fabrication of photonic crystal superlens for mid-infrared telescopes

N. Fujishiro

Proceedings Volume 10112, 1011225 (2017) https://doi.org/10.1117/12.2251391

KEYWORDS: Photonic crystals, Astronomical telescopes, Mid-IR, Telescopes, Two photon polymerization, Finite-difference time-domain method, Nanolithography, Optical instrument design, Device simulation, Ellipsometry, Space telescopes, Galactic astronomy, Refractive index, James Webb Space Telescope, Spatial resolution, Transmittance

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Proceedings Article | 29 July 2016 Paper

Sensitivity estimates for the SPICA Mid-Infrared Instrument (SMI)

Itsuki Sakon, Hidehiro Kaneda, Shinki Oyabu, Daisuke Ishihara, Takehiko Wada, Naofumi Fujishiro

Proceedings Volume 9904, 99043V (2016) https://doi.org/10.1117/12.2232402

KEYWORDS: Detector arrays, Mid-IR, Spectroscopes, Spectral resolution, Optical design, Sensors, Spectrometers, Lawrencium, Point spread functions, Quantum efficiency

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Proceedings Article | 12 September 2014 Paper

Development of wideband spectral dispersers for exoplanetary science: comparative study of material, design, and fabrication

Keigo Enya, Naofumi Fujishiro

Proceedings Volume 9193, 91931H (2014) https://doi.org/10.1117/12.2061684

KEYWORDS: Sensors, Spectrometers, Zinc, CCD image sensors, Space telescopes, Spectral resolution, Prisms, Optical design, Exoplanets, Laser induced fluorescence

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Proceedings Article | 4 August 2014 Paper

CRAO: a compact and refractive adaptive-optics

Naofumi Fujishiro, Eiji Kitao, Tomo Shimizu, Takuya Matsui, Yuji Ikeda, Hideyo Kawakita, Shin Oya

Proceedings Volume 9148, 91485W (2014) https://doi.org/10.1117/12.2055776

KEYWORDS: Adaptive optics, Telescopes, Wavefronts, Mirrors, Deformable mirrors, Reflectivity, Cameras, Prisms, Wavefront sensors, Astronomy

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Proceedings Article | 2 August 2014 Paper

A cryogenic dichroic mirror for separating visible light from wideband infrared

K. Enya, N. Fujishiro, K. Haze, T. Kotani, H. Kaneda, S. Oyabu, D. Ishihara, S. Oseki

Proceedings Volume 9143, 91434J (2014) https://doi.org/10.1117/12.2055807

KEYWORDS: Mirrors, Reflectivity, Transmittance, Coating, Visible radiation, Infrared radiation, Silver, Thin film coatings, Cryogenics, Telescopes

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Proceedings Article | 2 August 2014 Paper

A trial production of the image slicer unit for next generation infrared instruments and the assembly of the evaluation system of the pseudo slit image quality

Itsuki Sakon, Takashi Onaka, Hirokazu Kataza, Yoshiko Okamoto, Mitsuhiko Honda, Hitoshi Tokoro, Naofumi Fujishiro, Yuji Ikeda, Hiroyuki Nakagawa, Okiharu Kirino, Kenji Mitsui, Norio Okada

Proceedings Volume 9143, 91434U (2014) https://doi.org/10.1117/12.2057341

KEYWORDS: Mirrors, Infrared radiation, Image quality, Infrared imaging, Image filtering, Optical filters, Laser imaging, Assembly equipment, Black bodies, Spectroscopes

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Proceedings Article | 26 September 2013 Paper

A design and trial production of the image slicer unit for the mid-infrared spectrograph

Itsuki Sakon, Hirokazu Kataza, Takashi Onaka, Naofumi Fujishiro, Yuji Ikeda, Hitoshi Tokoro, Hiroyuki Nakagawa, Okiharu Kirino, Kenji Mitsui, Norio Okada

Proceedings Volume 8860, 88600Z (2013) https://doi.org/10.1117/12.2024746

KEYWORDS: Mirrors, Spectrographs, Mid-IR, Aluminum, Infrared telescopes, Optical components, Infrared imaging, Infrared radiation, Radium, Product engineering

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Proceedings Article | 21 September 2012 Paper

Recent progress in the development of mid-infrared medium resolution spectrometer (MRS) installed in SPICA/MCS

Itsuki Sakon, Hirokazu Kataza, Takashi Onaka, Ryou Ohsawa, Yoko Okada, Yuji Ikeda, Naofumi Fujishiro, Kenji Mitsui, Norio Okada

Proceedings Volume 8442, 84423S (2012) https://doi.org/10.1117/12.926734

KEYWORDS: Mirrors, Spectroscopy, Beam splitters, Mid-IR, Optical design, Spectral resolution, Cryogenics, Detector arrays, Infrared telescopes, Astronomy

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Proceedings Article | 21 September 2012 Paper

Mid-infrared camera and spectrometer on board SPICA

Hirokazu Kataza, Takehiko Wada, Itsuki Sakon, Naoto Kobayashi, Yuki Sarugaku, Naofumi Fujishiro, Yuji Ikeda, Shinki Oyabu

Proceedings Volume 8442, 84420Q (2012) https://doi.org/10.1117/12.926082

KEYWORDS: Spectroscopy, Telescopes, Cameras, Mirrors, Mid-IR, Spectral resolution, Astronomy, Space telescopes, Lawrencium, Sensors

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Proceedings Article | 17 September 2012 Paper

Dome flat-field system for 1.3-m Araki Telescope

Tomohiro Yoshikawa, Yuji Ikeda, Naofumi Fujishiro, Shunsuke Ichizawa, Akira Arai, Mizuki Isogai, Atsunori Yonehara, Hideyo Kawakita

Proceedings Volume 8444, 84446G (2012) https://doi.org/10.1117/12.925428

KEYWORDS: Telescopes, Mirrors, Lamps, Domes, Imaging systems, Astronomical telescopes, Calibration, Exoplanets, Ray tracing, Sensors

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Proceedings Article | 11 August 2010 Paper

Optical architecture of mid-infrared instruments (MIRACLE/MIRMES/MIRHES) on board SPICA

Hirokazu Kataza, Takehiko Wada, Yuji Ikeda, Naofumi Fujishiro, Naoto Kobayashi, Itsuki Sakon

Proceedings Volume 7731, 77314A (2010) https://doi.org/10.1117/12.856660

KEYWORDS: Mirrors, Mid-IR, Optical benches, Spectroscopy, Space telescopes, Telescopes, Sensors, Astronomy, Infrared telescopes, Cameras

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Proceedings Article | 6 August 2010 Paper

Conceptual design for the mid-infrared medium-resolution Echelle spectrometer (MIRMES) on the SPICA Mission

Itsuki Sakon, Yuji Ikeda, Naofumi Fujishiro, Hirokazu Kataza, Yoko Okada, Takashi Onaka

Proceedings Volume 7731, 77310Q (2010) https://doi.org/10.1117/12.856858

KEYWORDS: Mirrors, Spectroscopy, Mid-IR, Molecules, Stars, Optical design, Spectrographs, Detector arrays, Cameras, Beam splitters

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Proceedings Article | 12 July 2008 Paper

The Infrared Camera (IRC) for AKARI: in-flight imaging performance and the post cryogen mission

Takehiko Wada, Takashi Onaka, Hideo Matsuhara, Naofumi Fujishiro, Hideaki Fujiwara, Daisuke Ishihara, Yoshifusa Ita, Hirokazu Kataza, Woojung Kim, Toshio Matsumoto, Hiroshi Murakami, Youichi Ohyama, Shinki Oyabu, Itsuki Sakon, Toshihiko Tanabé, Tsutomu Tange, Toshinobu Takagi, Satoshi Takita, Kazunori Uemizu, Munetaka Ueno, Fumihiko Usui, Hidenori Watarai, Martin Cohen, Keigo Enya, Takafumi Ootsubo, Chris Pearson, Norihide Takeyama, Tomoyasu Yamamuro, Yuji Ikeda

Proceedings Volume 7010, 70100C (2008) https://doi.org/10.1117/12.789472

KEYWORDS: Sensors, Near infrared, Telescopes, Infrared cameras, Imaging spectroscopy, Cryogenics, Space telescopes, Mirrors, Helium, Point spread functions

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Proceedings Article | 12 July 2008 Paper

Mid-infrared all-sky survey with AKARI/IRC

Daisuke Ishihara, Takashi Onaka, Hirokazu Kataza, Hideaki Fujiwara, Satoshi Takita, Carlos Alfageme, Martin Cohen, Naofumi Fujishiro, Pedro Garcia-Lario, Sunao Hasegawa, Yoshifusa Ita, Woojung Kim, Takao Nakagawa, Hideo Matsuhara, Toshio Matsumoto, Hiroshi Murakami, Youichi Ohyama, Shinki Oyabu, Jeonghyun Pyo, Itsuki Sakon, Alberto Salama, Craig Stephenson, Hiroshi Shibai, Toshihiko Tanabe, Kazunori Uemizu, Munetaka Ueno, Fumihiko Usui, Takehiko Wada, Hidenori Watarai, Chisato Yamauchi, Issei Yamamura

Proceedings Volume 7010, 70100B (2008) https://doi.org/10.1117/12.788737

KEYWORDS: Mid-IR, Astronomy, Calibration, Spatial resolution, Signal processing, Stars, Infrared radiation, Infrared astronomy, Satellites, Image processing

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Proceedings Article | 12 July 2008 Paper

Data reduction techniques for slit and slit-less spectroscopy of diffuse emission with the Infrared Camera onboard AKARI

Itsuki Sakon, Takashi Onaka, Takehiko Wada, Youichi Ohyama, Hideo Matsuhara, Naofumi Fujishiro, Daisuke Ishihara, Yoshifusa Ita, Hidehiro Kaneda, Hirokazu Kataza, Woojung Kim, Toshio Matsumoto, Hiroshi Murakami, Takao Nakagawa, Shinki Oyabu, Toshihiko Tanabe, Toshinobu Takagi, Kazunori Uemizu, Munetaka Ueno, Fumihiko Usui, Hidenori Watarai, Martin Cohen

Proceedings Volume 7010, 70102Y (2008) https://doi.org/10.1117/12.788696

KEYWORDS: Spectroscopy, Imaging spectroscopy, Infrared cameras, Photons, Galactic astronomy, Light, Satellites, Infrared radiation, Emission spectroscopy, Astronomy

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Proceedings Article | 18 August 2005 Paper

Optical system of the 12-26 micron instrument (MIR-L) for ASTRO-F

Naofumi Fujishiro, Hideo Matsuhara, Yuji Ikeda, Tomoyasu Yamamuro, Norihide Takeyama, Takashi Onaka, Hirokazu Kataza, Takehiko Wada, Kazunori Uemizu, Itsuki Sakon, Chiaki Ihara, Daisuke Ishihara, Woojung Kim, Munetaka Ueno, Hidenori Watarai, Hiroshi Murakami

Proceedings Volume 5904, 59040I (2005) https://doi.org/10.1117/12.614503

KEYWORDS: Lenses, Cryogenics, Sensors, Telescopes, Optical filters, Point spread functions, Imaging spectroscopy, Spectroscopes, Spectroscopy, Optical design

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Proceedings Article | 18 August 2005 Paper

Optical performance evaluation of near-infrared camera (NIR) on board ASTRO-F

Woojung Kim, Hideo Matsuhara, Takashi Onaka, Hirokazu Kataza, Takehiko Wada, Kazunori Uemizu, Munetaka Ueno, Hiroshi Murakami, Naofumi Fujishiro, Daisuke Ishihara, Hidenori Watarai, Norihide Takeyama, Yuji Ikeda

Proceedings Volume 5904, 590418 (2005) https://doi.org/10.1117/12.615810

KEYWORDS: Near infrared, Cameras, Telescopes, Distortion, Chromatic aberrations, Sensors, Image quality, Silicon, Infrared cameras, Optical filters

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Proceedings Article | 12 October 2004 Paper

Optical design and performance of the 12- to 26-µm channel (MIR-L) of the infrared camera on board ASTRO-F

Proceedings Volume 5487, (2004) https://doi.org/10.1117/12.551538

KEYWORDS: Sensors, Infrared cameras, Point spread functions, Cryogenics, Spectroscopy, Optical design, Lenses, Telescopes, Zemax, Infrared radiation

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Proceedings Article | 12 October 2004 Paper

The infrared camera (IRC) on board the ASTRO-F: laboratory tests and expected performance

Takashi Onaka, Naofumi Fujishiro, Chiaki Ihara, Daisuke Ishihara, Yoshifusa Ita, Hirokazu Kataza, Woojung Kim, Hideo Matsuhara, Toshio Matsumoto, Hiroshi Murakami, Itsuki Sakon, Kazunori Uemizu, Munetaka Ueno, Takehiko Wada, Hidenori Watarai

Proceedings Volume 5487, (2004) https://doi.org/10.1117/12.550857

KEYWORDS: Near infrared, Sensors, Infrared cameras, Telescopes, Galactic astronomy, Bandpass filters, Optical filters, Beam splitters, Infrared astronomy, Infrared radiation

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Proceedings Article | 12 October 2004 Paper

Mid-infrared all-sky survey with the infrared camera (IRC) on board the ASTRO-F

Daisuke Ishihara, Takehiko Wada, Takashi Onaka, Hideo Matsuhara, Hirokazu Kataza, Munetaka Ueno, Naofumi Fujishiro, Woojung Kim, Hidenori Watarai, Kazunori Uemizu, Hiroshi Murakami, Toshio Matsumoto, Issei Yamamura

Proceedings Volume 5487, (2004) https://doi.org/10.1117/12.551282

KEYWORDS: Infrared radiation, Infrared cameras, Spatial resolution, Satellites, Mid-IR, Astronomy, Computer simulations, Infrared astronomy, Scanners, Staring arrays

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Proceedings Article | 5 March 2003 Paper

Evaluation of the mid-and near-infrared focal plane arrays for Japanese infrared astronomical satellite ASTRO-F

Daisuke Ishihara, Takehiko Wada, Hidenori Watarai, Hideo Matsuhara, Hirokazu Kataza, Takashi Onaka, Munetaka Ueno, Kazunori Uemizu, Woojung Kim, Naofumi Fujishiro, Hiroshi Murakami

Proceedings Volume 4850, (2003) https://doi.org/10.1117/12.461225

KEYWORDS: Sensors, Scanners, Clocks, Infrared radiation, Astronomy, Near infrared, Spatial resolution, Infrared astronomy, Satellites, Detector arrays

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Proceedings Article | 5 March 2003 Paper

Infrared camera (IRC) onboard ASTRO-F

Takehiko Wada, Naofumi Fujishiro, Daisuke Ishihara, Hirokazu Kataza, Woojung Kim, Hideo Matsuhara, Toshio Matsumoto, Hiroshi Murakami, Takashi Onaka, Norihide Takeyama, Kazunori Uemizu, Munetaka Ueno, Hidenori Watarai

Proceedings Volume 4850, (2003) https://doi.org/10.1117/12.461619

KEYWORDS: Near infrared, Control systems, Sensors, Infrared cameras, Satellites, Calibration, Space telescopes, Optical filters, Electronics, Staring arrays

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