Ms. Satsuki Hosono Profile

Satsuki Hosono

at Kagawa Univ

SPIE Involvement:

Author

Publications (9)

SPIE Journal Paper | 30 November 2016 Open Access

Sensitivity improvement of one-shot Fourier spectroscopic imager for realization of noninvasive blood glucose sensors in smartphones

Natsumi Kawashima, Kosuke Nogo, Satsuki Hosono, Akira Nishiyama, Kenji Wada, Ichiro Ishimaru

OE, Vol. 55, Issue 11, 110506, (November 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.11.110506

KEYWORDS: Spectroscopy, Fourier spectroscopy, Imaging spectroscopy, Imaging systems, Objectives, Sensors, Blood, Beam expanders, Glucose, Light sources

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Proceedings Article | 12 May 2016 Paper

Built-in hyperspectral camera for smartphone in visible, near-infrared and middle-infrared lights region (third report): spectroscopic imaging for broad-area and real-time componential analysis system against local unexpected terrorism and disasters

Satsuki Hosono, Natsumi Kawashima, Dirk Wollherr, Ichiro Ishimaru

Proceedings Volume 9855, 985506 (2016) https://doi.org/10.1117/12.2223409

KEYWORDS: Spectroscopy, Chemical analysis, Cameras, Imaging spectroscopy, Visible radiation, Near infrared spectroscopy, Imaging systems, Fourier spectroscopy, Mid-IR, Motion estimation, Reflection, Sensors

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Proceedings Article | 12 May 2016 Paper

Built-in hyperspectral camera for smartphone in visible, near-infrared and middle-infrared lights region (second report): sensitivity improvement of Fourier-spectroscopic imaging to detect diffuse reflection lights from internal human tissues for healthcare sensors

Natsumi Kawashima, Satsuki Hosono, Ichiro Ishimaru

Proceedings Volume 9855, 985505 (2016) https://doi.org/10.1117/12.2223392

KEYWORDS: Spectroscopy, Imaging spectroscopy, Cameras, Fourier spectroscopy, Mid-IR, Objectives, Visible radiation, Sensors, Glucose, Imaging systems, Medicine, Absorbance

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We proposed the snapshot-type Fourier spectroscopic imaging for smartphone that was mentioned in 1st. report in this conference. For spectroscopic components analysis, such as non-invasive blood glucose sensors, the diffuse reflection lights from internal human skins are very weak for conventional hyperspectral cameras, such as AOTF (Acousto-Optic Tunable Filter) type. Furthermore, it is well known that the spectral absorption of mid-infrared lights or Raman spectroscopy especially in long wavelength region is effective to distinguish specific biomedical components quantitatively, such as glucose concentration. But the main issue was that photon energies of middle infrared lights and light intensities of Raman scattering are extremely weak. For improving sensitivity of our spectroscopic imager, the wide-field-stop & beam-expansion method was proposed. Our line spectroscopic imager introduced a single slit for field stop on the conjugate objective plane. Obviously to increase detected light intensities, the wider slit width of the field stop makes light intensities higher, regardless of deterioration of spatial resolutions. Because our method is based on wavefront-division interferometry, it becomes problems that the wider width of single slit makes the diffraction angle narrower. This means that the narrower diameter of collimated objective beams deteriorates visibilities of interferograms. By installing the relative inclined phaseshifter onto optical Fourier transform plane of infinity corrected optical systems, the collimated half flux of objective beams derived from single-bright points on objective surface penetrate through the wedge prism and the cuboid glass respectively. These two beams interfere each other and form the infererogram as spatial fringe patterns. Thus, we installed concave-cylindrical lens between the wider slit and objective lens as a beam expander. We successfully obtained the spectroscopic characters of hemoglobin from reflected lights from human fingers.

Proceedings Article | 12 May 2016 Paper

Built-in hyperspectral camera for smartphone in visible, near-infrared and middle-infrared lights region (first report): trial products of beans-size Fourier-spectroscopic line-imager and feasibility experimental results of middle-infrared spectroscopic imaging

Ichiro Ishimaru, Natsumi Kawashima, Satsuki Hosono

Proceedings Volume 9855, 985504 (2016) https://doi.org/10.1117/12.2223353

KEYWORDS: Spectroscopy, Imaging spectroscopy, Visible radiation, Imaging systems, Objectives, Glasses, Cameras, Mid-IR, Infrared spectroscopy, Fourier spectroscopy, Interferometers, Fourier transforms, Phase shifts

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Proceedings Article | 7 March 2016 Presentation + Paper

Thumb-size ultrasonic-assisted spectroscopic imager for in-situ glucose monitoring as optional sensor of conventional dialyzers

Kosuke Nogo, Keita Mori, Wei Qi, Satsuki Hosono, Natsumi Kawashima, Akira Nishiyama, Kenji Wada, Ichiro Ishimaru

Proceedings Volume 9699, 96990N (2016) https://doi.org/10.1117/12.2213629

KEYWORDS: Blood, Spectroscopy, Imaging spectroscopy, Glucose, Imaging systems, Ultrasonics, Light scattering, Scattering, Plasma, Sensors, Fourier spectroscopy, Oscillators, Particles

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SPIE Journal Paper | 19 February 2016 Open Access

Ultraminiature one-shot Fourier-spectroscopic tomography

Shun Sato, Wei Qi, Natsumi Kawashima, Kosuke Nogo, Satsuki Hosono, Akira Nishiyama, Kenji Wada, Ichiro Ishimaru

OE, Vol. 55, Issue 02, 025106, (February 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.2.025106

KEYWORDS: Phase shifts, Tomography, Imaging spectroscopy, Spectroscopes, Spectroscopy, Imaging systems, Phase interferometry, Glasses, Fourier transforms, Optical tomography

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Proceedings Article | 15 July 2015 Paper

In-situ monitoring of blood glucose level for dialysis machine by AAA-battery-size ATR Fourier spectroscopy

Satsuki Hosono, Shun Sato, Akane Ishida, Yo Suzuki, Daichi Inohara, Kosuke Nogo, Pradeep Abeygunawardhana, Satoru Suzuki, Akira Nishiyama, Kenji Wada, Ichiro Ishimaru

Proceedings Volume 9537, 953715 (2015) https://doi.org/10.1117/12.2183674

KEYWORDS: Blood, Glucose, Imaging spectroscopy, Fourier spectroscopy, Spectroscopy, Attenuated total reflectance, Liquids, Prisms, Ultrasonics, Infrared spectroscopy

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Proceedings Article | 12 March 2015 Paper

Palm-size wide-field Fourier spectroscopic imager with uncooled infrared microbolometer arrays for smartphone

Natsumi Kawashima, Yo Suzuki, Wei Qi, Satsuki Hosono, Tsubasa Saito, Satoshi Ogawa, Shun Sato, Masaru Fujiwara, Akira Nishiyama, Kenji Wada, Naotaka Tanaka, Ichiro Ishimaru

Proceedings Volume 9314, 93140Q (2015) https://doi.org/10.1117/12.2078151

KEYWORDS: Imaging spectroscopy, Spectroscopy, Mid-IR, Fourier spectroscopy, Microbolometers, Infrared radiation, Infrared imaging, Imaging systems, Interferometers, Objectives

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Proceedings Article | 12 March 2015 Paper

Proposal of AAA-battery-size one-shot ATR Fourier spectroscopic imager for on-site analysis: Simultaneous measurement of multi-components with high accuracy

Satsuki Hosono, Wei Qi, Shun Sato, Yo Suzuki, Masaru Fujiwara, Hiroyuki Hiramatsu, Satoru Suzuki, P. Abeygunawardhana, Kenji Wada, Akira Nishiyama, Ichiro Ishimaru

Proceedings Volume 9314, 93140O (2015) https://doi.org/10.1117/12.2077476

KEYWORDS: Bioalcohols, Glucose, Fourier spectroscopy, Absorption, Attenuated total reflectance, Imaging spectroscopy, Spectroscopy, Absorbance, Imaging systems, Mid-IR

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For simultaneous measurement of multi-components on-site like factories, the ultra-compact (diameter: 9[mm], length: 45[mm], weight: 200[g]) one-shot ATR (Attenuated Total Reflection) Fourier spectroscopic imager was proposed. Because the proposed one-shot Fourier spectroscopic imaging is based on spatial-phase-shift interferometer, interferograms could be obtained with simple optical configurations. We introduced the transmission-type relativeinclined phase-shifter, that was constructed with a cuboid prism and a wedge prism, onto the optical Fourier transform plane of infinity corrected optical systems. And also, small light-sources and cameras in the mid-infrared light region, whose size are several millimeter on a side, are essential components for the ultra-compact spectroscopic configuration. We selected the Graphite light source (light source area: 1.7×1.7[mm], maker: Hawkeye technologies) whose radiation factor was high. Fortunately, in these days we could apply the cost-effective 2-dimensional light receiving device for smartphone (e.g. product name: LEPTON, maker: FLIR, price: around 400USD). In the case of alcoholic drinks factory, conventionally workers measure glucose and ethanol concentrations by bringing liquid solution back to laboratories every day. The high portable spectroscopy will make it possible to measure multi-components simultaneously on manufacturing scene. But we found experimentally that absorption spectrum of glucose and water and ethanol were overlapped each other in near infrared light region. But for mid-infrared light region, we could distinguish specific absorption peaks of glucose (@10.5[μm]) and ethanol (@11.5[μm]) independently from water absorption. We obtained standard curve between absorption (@9.6[μm]) and ethanol concentration with high correlation coefficient 0.98 successfully by ATR imaging-type 2-dimensional Fourier spectroscopy (wavelength resolution: 0.057[μm]) with the graphite light source (maker: Hawkeye technologies, type: IR-75).

Showing 5 of 9 publications

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