Dr. Youwei Yao Profile

Dr. Youwei Yao

at MIT Kavli Institute for Astrophysics and Space Res

SPIE Involvement:

Author

Publications (18)

Proceedings Article | 9 September 2019 Presentation

Development of a thermal-oxide patterning method for mitigating coating stress-induced distortion in silicon mirrors for the Lynx X-Ray Telescope mission concept (Conference Presentation)

Youwei Yao, Brandon Chalifoux, Ralf Heilmann, Kai-Wing Chan, Hideyuki Mori, Takashi Okajima, William Zhang, Mark Schattenburg

Proc. SPIE. 11119, Optics for EUV, X-Ray, and Gamma-Ray Astronomy IX

KEYWORDS: Oxides, Mirrors, Optical lithography, Silicon, Coating, Distortion, Finite element methods, X-ray telescopes, Semiconducting wafers, Iridium

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Proceedings Article | 9 September 2019 Paper

X-ray telescope deformation reduction using stress relief features

Anjelica Molnar-Fenton, Alexander Bruccoleri, Youwei Yao, Ralf Heilmann, Mark Schattenburg

Proc. SPIE. 11119, Optics for EUV, X-Ray, and Gamma-Ray Astronomy IX

KEYWORDS: Oxides, Mirrors, X-ray optics, Silicon, Distortion, Finite element methods, Spatial resolution, X-ray telescopes, Semiconducting wafers, Adhesives

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SPIE Journal Paper | 29 April 2019

Progress of coating stress compensation of silicon mirrors for Lynx x-ray telescope mission concept using thermal oxide patterning method

Youwei Yao, Brandon Chalifoux, Ralf Heilmann, Kai-Wing Chan, Hideyuki Mori, Takashi Okajima, William Zhang, Mark Schattenburg

JATIS Vol. 5 Issue 02

KEYWORDS: Mirrors, Coating, Oxides, Silicon, Iridium, Annealing, Distortion, Optical lithography, X-rays, Semiconducting wafers

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SPIE Journal Paper | 9 March 2019

Simulations of film stress effects on mirror segments for the Lynx X-ray Observatory concept

Brandon D. Chalifoux, Youwei Yao, Ralf K. Heilmann, Mark L. Schattenburg

JATIS Vol. 5 Issue 02

KEYWORDS: Mirrors, Ray tracing, X-rays, Point spread functions, Silicon films, Coating, Silicon, Observatories, Diffraction, Iridium

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Proceedings Article | 6 July 2018 Paper

X-ray telescope mirror mounting and deformation reduction using ThermoYield actuators and mirror geometry changes

Michael DeTienne, Alexander Bruccoleri, Anjelica Molnar-Fenton, Brandon Chalifoux, Ralf Heilmann, Youwei Yao, Mark Schattenburg

Proc. SPIE. 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray

KEYWORDS: Actuators, Neck, Mirrors, X-ray optics, Capacitors, Metals, Tungsten, Distortion, Epoxies, X-ray telescopes

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Proceedings Article | 6 July 2018 Paper

Compensating film stress in silicon substrates for the Lynx X-ray telescope mission concept using ion implantation

Brandon Chalifoux, Youwei Yao, Heng Zuo, Ralf Heilmann, Mark Schattenburg

Proc. SPIE. 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray

KEYWORDS: Mirrors, Metrology, Annealing, Ions, Silicon, Wavefront sensors, Chromium, Silicon films, Ion implantation, Semiconducting wafers

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Proceedings Article | 6 July 2018 Paper

Thermal oxide patterning method for compensating coating stress in silicon x-ray telescope mirrors

Youwei Yao, Brandon Chalifoux, Ralf Heilmann, Kai-Wing Chan, Hideyuki Mori, William Zhang, Mark Schattenburg

Proc. SPIE. 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray

KEYWORDS: Oxides, Mirrors, Optical lithography, Silicon, Coating, Distortion, Photomasks, X-ray telescopes, Semiconducting wafers, Iridium

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Proceedings Article | 29 August 2017 Presentation + Paper

Recent progress on air-bearing slumping of segmented thin-shell mirrors for x-ray telescopes: experiments and numerical analysis

Heng Zuo, Youwei Yao, Brandon Chalifoux, Michael DeTienne, Ralf Heilmann, Mark Schattenburg

Proc. SPIE. 10399, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII

KEYWORDS: Telescopes, Mirrors, Spatial frequencies, Glasses, Nitrogen, Numerical analysis, Space telescopes, X-ray telescopes, Semiconducting wafers, Nanolithography

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Proceedings Article | 29 August 2017 Presentation + Paper

Lamination of ultra-thin silicon wafers for producing high-quality and low-cost x-ray telescope mirrors

Youwei Yao, Mark Schattenburg

Proc. SPIE. 10399, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII

KEYWORDS: Wafer-level optics, Mirrors, X-ray optics, Polishing, Glasses, X-rays, Silicon, X-ray telescopes, Semiconducting wafers, Wafer bonding

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Proceedings Article | 29 August 2017 Presentation + Paper

Using ion implantation for figure correction in glass and silicon mirror substrates for x-ray telescopes

Brandon Chalifoux, Claire Burch, Ralf Heilmann, Youwei Yao, Heng Zuo, Mark Schattenburg

Proc. SPIE. 10399, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII

KEYWORDS: Observatories, Telescopes, Mirrors, Glasses, Crystals, X-rays, Ions, Silicon, Ion implantation, Optical calibration

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Proceedings Article | 27 October 2016 Paper

Toward large-area sub-arcsecond x-ray telescopes II

Stephen O'Dell, Ryan Allured, Andrew Ames, Michael Biskach, David Broadway, Ricardo Bruni, David Burrows, Jian Cao, Brandon Chalifoux, Kai-Wing Chan, Yip-Wah Chung, Vincenzo Cotroneo, Ronald Elsner, Jessica Gaskin, Mikhail Gubarev, Ralf Heilmann, Edward Hertz, Thomas Jackson, Kiranmayee Kilaru, Jeffrey Kolodziejczak, Ryan McClelland, Brian Ramsey, Paul Reid, Raul Riveros, Jacqueline Roche, Suzanne Romaine, Timo Saha, Mark Schattenburg, Daniel Schwartz, Eric Schwartz, Peter Solly, Susan Trolier-McKinstry, Melville Ulmer, Alexey Vikhlinin, Margeaux Wallace, Xiaoli Wang, David Windt, Youwei Yao, Shi Ye, William Zhang, Heng Zuo

Proc. SPIE. 9965, Adaptive X-Ray Optics IV

KEYWORDS: Thin films, Mirrors, X-ray optics, X-rays, Ions, Silicon, Coating, Ion implantation, X-ray telescopes, Iridium

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Proceedings Article | 9 September 2016 Presentation + Paper

Shaping Si, NiCo, and glass substrates via stresses in the coatings

Xiaoli Wang, Youwei Yao, Shi Ye, Tianchen Liu, Lahsen Assoufid, Jian Cao, M. Ulmer

Proc. SPIE. 9965, Adaptive X-Ray Optics IV

KEYWORDS: Mirrors, X-ray optics, Glasses, X-rays, Silicon, Optical coatings, Magnetism, Thin film coatings, X-ray astronomy, X-ray telescopes

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Proceedings Article | 11 July 2016 Paper

Gas bearing slumping and figure correction of x-ray telescope mirror substrates

Brandon Chalifoux, Heng Zuo, Graham Wright, Youwei Yao, Ralf Heilmann, Mark Schattenburg

Proc. SPIE. 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray

KEYWORDS: Telescopes, Mirrors, Mirrors, Multilayers, X-ray optics, Glasses, Glasses, X-rays, X-rays, Space telescopes, Spatial resolution, X-ray telescopes, Prototyping

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Proceedings Article | 4 September 2015 Paper

Investigation of magnetically smart films applied to correct the surface profile of light weight X-ray optics in two directions

Xiaoli Wang, Youwei Yao, Jian Cao, Semyon Vaynman, Michael Graham, Tianchen Liu, M. Ulmer

Proc. SPIE. 9603, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VII

KEYWORDS: Mirrors, X-ray optics, Data modeling, Sputter deposition, Glasses, X-rays, Coating, Magnetism, Finite element methods, Smart materials

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Proceedings Article | 4 September 2015 Paper

Stress manipulated coating for figure reshape of light weight X-ray telescope mirrors

Youwei Yao, Xiaoli Wang, Jian Cao, Michael Graham, Semyon Vaynman, Shannon Grogans, Yifang Cao, Melville Ulmer

Proc. SPIE. 9603, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VII

KEYWORDS: Mirrors, X-ray optics, Sputter deposition, Glasses, Annealing, X-rays, Coating, Chromium, Aluminum, X-ray telescopes

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Proceedings Article | 5 September 2014 Paper

Comparisons of the deflections of magnetically smart films on alloy of NiCo and glass substrates

Melville Ulmer, Xiaoli Wang, Peter Knapp, Jian Cao, Yifang Cao, Tyler Karian, Shannon Grogans, Michael Graham, Semyon Vaynman, Youwei Yao

Proc. SPIE. 9208, Adaptive X-Ray Optics III

KEYWORDS: Mirrors, X-ray optics, Statistical analysis, Sputter deposition, Glasses, Magnetism, X-ray astronomy, X-ray telescopes, Magnetostrictive materials, Smart materials

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Proceedings Article | 26 September 2013 Paper

Improvements of design scheme and fabrication of the hard x-ray supermirror with broad bandwidth and flattop response

Youwei Yao, Hideyo Kunieda

Proc. SPIE. 8861, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VI

KEYWORDS: Reflectors, Multilayers, X-ray optics, Detection and tracking algorithms, Calibration, X-rays, Reflectivity, Platinum, X-ray telescopes, Hard x-rays

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Proceedings Article | 30 April 2009 Paper

Angle alignment method for soft x-ray using double-periodic multilayer

Baozhong Mu, Li Jiang, Shengzhen Yi, Jingtao Zhu, Xin Wang, Qiushi Huang, Moyan Tan, Xiaoqiang Wang, Jing Xu, Youwei Yao, Yi Huang, Hongying Liu, Zhanshan Wang, Lingyan Chen

Proc. SPIE. 7360, EUV and X-Ray Optics: Synergy between Laboratory and Space

KEYWORDS: Zemax, Microscopes, Mirrors, X-ray optics, X-rays, Reflectivity, Diagnostics, Geometrical optics, X-ray imaging, Grazing incidence

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Showing 5 of 18 publications

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