All Stories

  1. Diaboloidal mirrors: algebraic solution and surface shape approximations

    Article • Journal of Synchrotron Radiation, June 2021, International Union of Crystallography

    Dr. Valeriy V Yashchuk, Dr. Kenneth A Goldberg

  2. Super-resolution surface slope metrology of x-ray mirrors

    Article • Review of Scientific Instruments, July 2020, American Institute of Physics

    Dr. Valeriy V Yashchuk

  3. Environmental influences on autocollimator-based angle and form metrology

    Article • Review of Scientific Instruments, February 2019, American Institute of Physics

    Dr. Valeriy V Yashchuk

  4. Ex situ metrology and data analysis for optimization of beamline performance of aspherical pre-shaped x-ray mirrors at the advanced light source

    Article • Review of Scientific Instruments, February 2019, American Institute of Physics

    Dr. Valeriy V Yashchuk

  5. Optimization of the size and shape of the scanning aperture in autocollimator-based deflectometric profilometers

    Article • Review of Scientific Instruments, February 2019, American Institute of Physics

    Dr. Valeriy V Yashchuk

  6. Modeling surface topography of state-of-the-art x-ray mirrors as a result of stochastic polishing process: recent developments

    Article • September 2016, SPIE

    Dr. Valeriy V Yashchuk

  7. New operational mode of the pencil beam interferometry based LTP

    Article • September 2016, SPIE

    Dr. Valeriy V Yashchuk

  8. Modeling of surface metrology of state-of-the-art x-ray mirrors as a result of stochastic polishing process

    Article • Optical Engineering, July 2016, SPIE

    Dr. Valeriy V Yashchuk

  9. Optimized mirror shape tuning using beam weightings based on distance, angle of incidence, reflectivity, and power

    Article • Review of Scientific Instruments, May 2016, American Institute of Physics

    Dr. Valeriy V Yashchuk, Dr. Kenneth A Goldberg

  10. Preface: The 5th International Workshop on X-ray Mirror Design, Fabrication, and Metrology

    Article • Review of Scientific Instruments, May 2016, American Institute of Physics

    Dr. Valeriy V Yashchuk, Dr. Kenneth A Goldberg

  11. DABAM: an open-source database of X-ray mirrors metrology

    Article • Journal of Synchrotron Radiation, April 2016, International Union of Crystallography

    Manuel Sanchez del Rio, Dr. Valeriy V Yashchuk, Dr Xianbo Shi

  12. Modeling of surface metrology of state-of-the-art x-ray mirrors as a result of stochastic polishing process

    Article • November 2015, SPIE

    Dr. Valeriy V Yashchuk

  13. Advanced environmental control as a key component in the development of ultrahigh accuracyex situmetrology for x-ray optics

    Article • Optical Engineering, October 2015, SPIE

    Dr. Valeriy V Yashchuk

  14. Binary pseudorandom test standard to determine the modulation transfer function of optical microscopes

    Article • September 2015, SPIE

    Dr. Valeriy V Yashchuk

  15. Performance optimization of a bendable parabolic cylinder collimating X-ray mirror for the ALS micro-XAS beamline 10.3.2

    Article • Journal of Synchrotron Radiation, April 2015, International Union of Crystallography

    Dr. Valeriy V Yashchuk

  16. High-order multilayer coated blazed gratings for high resolution soft x-ray spectroscopy

    Article • Optics Express, February 2015, Optical Society of America (OSA)

    Dr. Valeriy V Yashchuk

  17. Specification of x-ray mirrors in terms of system performance: new twist to an old plot

    Article • Optical Engineering, February 2015, SPIE

    Dr. Valeriy V Yashchuk

  18. Angular calibration of surface slope measuring profilers with a bendable mirror

    Article • September 2014, SPIE

    Dr. Valeriy V Yashchuk

  19. The developmental long trace profiler (DLTP) optimized for metrology of side-facing optics at the ALS

    Article • September 2014, SPIE

    Dr. Valeriy V Yashchuk

  20. A new x-ray optics laboratory (XROL) at the ALS: mission, arrangement, metrology capabilities, performance, and future plans

    Article • September 2014, SPIE

    Dr. Valeriy V Yashchuk

  21. Specification of x-ray mirrors in terms of system performance: a new twist to an old plot

    Article • September 2014, SPIE

    Dr. Valeriy V Yashchuk

  22. Application of the time-invariant linear filter approximation to parametrization of surface metrology with high-quality x-ray optics

    Article • Optical Engineering, August 2014, SPIE

    Dr. Valeriy V Yashchuk

  23. Application of time-invariant linear filter approximation to parametrization of one- and two-dimensional surface metrology with high quality x-ray optics

    Article • September 2013, SPIE

    Dr. Valeriy V Yashchuk

  24. Two-foci bendable mirrors for the ALS MAESTRO beamline: design and metrology characterization and optimal tuning of the mirror benders

    Article • September 2013, SPIE

    Dr. Valeriy V Yashchuk

  25. Correlation analysis of surface slope metrology measurements of high quality x-ray optics

    Article • September 2013, SPIE

    Dr. Valeriy V Yashchuk

  26. Status of multi-beam long trace-profiler development

    Article • September 2013, SPIE

    Dr. Valeriy V Yashchuk

  27. High precision surface metrology of x-ray optics with an interferometric microscope

    Article • September 2013, SPIE

    Dr. Valeriy V Yashchuk

  28. Metrology for the Advancement of X-ray Optics at the ALS

    Article • Synchrotron Radiation News, September 2013, Taylor & Francis

    Dr. Kenneth A Goldberg, Dr. Valeriy V Yashchuk

  29. Advanced X-ray Optics Metrology

    Article • Synchrotron Radiation News, September 2013, Taylor & Francis

    Dr. Valeriy V Yashchuk

  30. Ex situ metrology of x-ray diffraction gratings

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, May 2013, Elsevier

    Dr. Valeriy V Yashchuk

  31. Methodology for optimal in situ alignment and setting of bendable optics for nearly diffraction-limited focusing of soft x-rays

    Article • Optical Engineering, March 2013, SPIE

    Dr. Kenneth A Goldberg, Dr. Valeriy V Yashchuk

  32. Cross comparison of surface slope and height optical metrology with a super-polished plane Si mirror

    Article • October 2012, SPIE

    Dr. Valeriy V Yashchuk

  33. Ex situ tuning of bendable x-ray mirrors for optimal beamline performance

    Article • October 2012, SPIE

    Dr. Kenneth A Goldberg, Dr. Valeriy V Yashchuk

  34. Methodology for optimal in situ alignment and setting of bendable optics for diffraction-limited focusing of soft x-rays

    Article • October 2012, SPIE

    Dr. Kenneth A Goldberg, Dr. Valeriy V Yashchuk

  35. Optimal setting of bendable optics based on FEA calculations

    Article • October 2012, SPIE

    Dr. Valeriy V Yashchuk

  36. Progress of multi-beam long trace-profiler development

    Article • October 2012, SPIE

    Dr. Valeriy V Yashchuk

  37. Development and calibration of mirrors and gratings for the soft x-ray materials science beamline at the Linac Coherent Light Source free-electron laser

    Article • Applied Optics, April 2012, Optical Society of America (OSA)

    Dr. Valeriy V Yashchuk

  38. An experimental apparatus for diffraction-limited soft x-ray nano-focusing

    Article • September 2011, SPIE

    Dr. Kenneth A Goldberg, Dr. Valeriy V Yashchuk

  39. Design optimization of bendable x-ray mirrors

    Article • September 2011, SPIE

    Dr. Kenneth A Goldberg, Dr. Valeriy V Yashchuk

  40. Reliable before-fabrication forecasting of expected surface slope distributions for x-ray optics

    Article • September 2011, SPIE

    Dr. Valeriy V Yashchuk

  41. Automated suppression of errors in LTP-II slope measurements with x-ray optics

    Article • September 2011, SPIE

    Dr. Valeriy V Yashchuk

  42. Development of multi-beam long trace profiler

    Article • September 2011, SPIE

    Dr. Valeriy V Yashchuk

  43. Development of in situ, at-wavelength metrology for soft X-ray nano-focusing

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, September 2011, Elsevier

    Dr. Kenneth A Goldberg, Dr. Valeriy V Yashchuk

  44. Development of a new generation of optical slope measuring profiler

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, September 2011, Elsevier

    Dr. Valeriy V Yashchuk

  45. Characterization of electron microscopes with binary pseudo-random multilayer test samples

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, September 2011, Elsevier

    Dr. Valeriy V Yashchuk

  46. Fabrication and characterization of ultra-high resolution multilayer-coated blazed gratings

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, September 2011, Elsevier

    Dr. Valeriy V Yashchuk

  47. Automated suppression of errors in LTP-II slope measurements of x-ray optics. Part 2: Specification for automated rotating/flipping/aligning system

    Article • July 2011, Office of Scientific and Technical Information (OSTI)

    Dr. Valeriy V Yashchuk

  48. Automated suppression of errors in LTP-II slope measurements with x-ray optics. Part1: Review of LTP errors and methods for the error reduction

    Article • May 2011, Office of Scientific and Technical Information (OSTI)

    Dr. Valeriy V Yashchuk

  49. Cross-check of ex-situ and in-situ metrology of a bendable temperature stabilized KB mirror

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, April 2011, Elsevier

    Dr. Kenneth A Goldberg, Dr. Valeriy V Yashchuk

  50. At-wavelength optical metrology development at the ALS

    Article • August 2010, SPIE

    Dr. Kenneth A Goldberg, Dr. Valeriy V Yashchuk

  51. Developmental long trace profiler using optimally aligned mirror based pentaprism

    Article • August 2010, SPIE

    Dr. Valeriy V Yashchuk

  52. Calibration of the modulation transfer function of surface profilometers with binary pseudo-random test standards: expanding the application range

    Article • August 2010, SPIE

    Dr. Valeriy V Yashchuk

  53. Studies in optimal configuration of the LTP

    Article • August 2010, SPIE

    Dr. Valeriy V Yashchuk

  54. High-efficiency multilayer blazed gratings for EUV and soft x-rays: recent developments

    Article • August 2010, SPIE

    Dr. Valeriy V Yashchuk

  55. High-efficiency 5000 lines/mm multilayer-coated blazed grating for extreme ultraviolet wavelengths

    Article • Optics Letters, July 2010, Optical Society of America (OSA)

    Dr. Valeriy V Yashchuk

  56. Autocollimators for deflectometry: Current status and future progress

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, May 2010, Elsevier

    Dr. Valeriy V Yashchuk

  57. Sub-microradian surface slope metrology with the ALS Developmental Long Trace Profiler

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, May 2010, Elsevier

    Dr. Valeriy V Yashchuk

  58. Binary pseudo-random gratings and arrays for calibration of modulation transfer functions of surface profilometers

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, May 2010, Elsevier

    Dr. Valeriy V Yashchuk

  59. Surface Slope Metrology on Deformable Soft X-ray Mirrors

    Article • January 2010, American Institute of Physics

    Dr. Kenneth A Goldberg, Dr. Valeriy V Yashchuk

  60. Elliptically Bent X-Ray Mirrors with Active Temperature Stabilization

    Article • X-Ray Optics and Instrumentation, January 2010, Hindawi Publishing Corporation

    Dr. Kenneth A Goldberg, Dr. Valeriy V Yashchuk

  61. A Soft X-ray Spectrometer using a Highly Dispersive Multilayer Grating

    Article • January 2010, American Institute of Physics

    Dr. Valeriy V Yashchuk

  62. 2-D Spatial Frequency Considerations in Comparing 1D Power Spectral Density Measurements

    Article • January 2010, Optical Society of America (OSA)

    Dr. Valeriy V Yashchuk

  63. Optimal measurement strategies for effective suppression of drift errors

    Article • Review of Scientific Instruments, November 2009, American Institute of Physics

    Dr. Valeriy V Yashchuk

  64. Binary pseudo-random gratings and arrays for calibration of the modulation transfer function of surface profilometers: recent developments

    Article • August 2009, SPIE

    Dr. Valeriy V Yashchuk

  65. 5000 groove/mm multilayer-coated blazed grating with 33% efficiency in the 3rd order in the EUV wavelength range

    Article • August 2009, SPIE

    Dr. Valeriy V Yashchuk

  66. A dedicated superbend x-ray microdiffraction beamline for materials, geo-, and environmental sciences at the advanced light source

    Article • Review of Scientific Instruments, March 2009, American Institute of Physics

    Professor Kai Chen, Dr. Valeriy V Yashchuk

  67. At-Wavelength and Optical Metrology of Bendable X-Ray Optics for Nanofocusing at the ALS

    Article • January 2009, Optical Society of America (OSA)

    Dr. Kenneth A Goldberg, Dr. Valeriy V Yashchuk

  68. Development of pseudorandom binary arrays for calibration of surface profile metrology tools

    Article • January 2009, American Vacuum Society

    Dr. Valeriy V Yashchuk

  69. Fabrication and characterization of a new high density Sc/Si multilayer sliced grating

    Article • August 2008, SPIE

    Dr. Valeriy V Yashchuk

  70. Performance of the upgraded LTP-II at the ALS Optical Metrology Laboratory

    Article • August 2008, SPIE

    Dr. Valeriy V Yashchuk

  71. Submillimeter-resolution magnetic resonance imaging at the Earth’s magnetic field with an atomic magnetometer

    Article • Physical Review A, July 2008, American Physical Society (APS)

    Dr. Valeriy V Yashchuk

  72. Binary pseudorandom grating standard for calibration of surface profilometers

    Article • Optical Engineering, July 2008, SPIE

    Dr. Valeriy V Yashchuk

  73. Integration of the Two-Dimensional Power Spectral Density into Specifications for the X-Ray Domain--Problems and Opportunities

    Article • January 2008, Optical Society of America (OSA)

    Dr. Valeriy V Yashchuk

  74. Calibration of Modulation Transfer Function of Surface Profilometers with 1-D and 2-D Binary Pseudo-Random Array Standards

    Article • January 2008, Optical Society of America (OSA)

    Dr. Valeriy V Yashchuk

  75. Development of an ultrahigh-resolution diffraction grating for soft x-rays

    Article • September 2007, SPIE

    Dr. Valeriy V Yashchuk

  76. Proposal for a universal test mirror for characterization of slope measuring instruments

    Article • September 2007, SPIE

    Dr. Valeriy V Yashchuk

  77. Binary pseudo-random grating as a standard test surface for measurement of modulation transfer function of interferometric microscopes

    Article • September 2007, SPIE

    Dr. Valeriy V Yashchuk

  78. Flat-field calibration of CCD detector for long trace profiler

    Article • September 2007, SPIE

    Dr. Valeriy V Yashchuk

  79. Precision tiltmeter as a reference for slope measuring instruments

    Article • September 2007, SPIE

    Dr. Valeriy V Yashchuk

  80. New procedures for the adjustment of elliptically bent mirrors with the long trace profiler

    Article • September 2007, SPIE

    Dr. Valeriy V Yashchuk

  81. Global High-Accuracy Intercomparison of Slope Measuring Instruments

    Article • January 2007, American Institute of Physics

    Dr. Valeriy V Yashchuk

  82. Positioning errors of pencil-beam interferometers for long trace profilers

    Article • August 2006, SPIE

    Dr. Valeriy V Yashchuk

  83. Air convection noise of pencil-beam interferometer for long trace profiler

    Article • August 2006, SPIE

    Dr. Valeriy V Yashchuk

  84. Construction and applications of an atomic magnetic gradiometer based on nonlinear magneto-optical rotation

    Article • Review of Scientific Instruments, August 2006, American Institute of Physics

    Dr. Valeriy V Yashchuk

  85. Surface roughness of stainless-steel mirrors for focusing soft x rays

    Article • Applied Optics, July 2006, Optical Society of America (OSA)

    Dr. Valeriy V Yashchuk

  86. Cross-check of different techniques for two-dimensional power spectral density measurements of x-ray optics

    Article • August 2005, SPIE

    Dr. Valeriy V Yashchuk

  87. Elimination of 'ghost'-effect-related systematic errors in metrology of x-ray optics with a long trace profiler

    Article • June 2005, SPIE

    Dr. Valeriy V Yashchuk

  88. Two-dimensional power spectral density measurements of x-ray optics with the Micromap interferometric microscope

    Article • June 2005, SPIE

    Dr. Valeriy V Yashchuk

  89. Dynamic effects in nonlinear magneto-optics of atoms and molecules: review

    Article • Journal of the Optical Society of America B, January 2005, Optical Society of America (OSA)

    Dr. Valeriy V Yashchuk

  90. Production of dry powder clots using a piezoelectric drop generator

    Article • Review of Scientific Instruments, June 2002, American Institute of Physics

    Dr. Valeriy V Yashchuk

  91. Obtaining frequency markers of variable separation with a spherical mirror Fabry-Perot interferometer

    Article • Review of Scientific Instruments, August 2000, American Institute of Physics

    Dr. Valeriy V Yashchuk

  92. Laser frequency stabilization using linear magneto-optics

    Article • Review of Scientific Instruments, February 2000, American Institute of Physics

    Dr. Valeriy V Yashchuk

  93. Applications of nonlinear magneto-optic effects with ultra-narrow widths

    Article • January 1999, American Institute of Physics

    Dr. Valeriy V Yashchuk

  94. Nonlinear Magneto-optic Effects with Ultranarrow Widths

    Article • Physical Review Letters, December 1998, American Physical Society (APS)

    Dr. Valeriy V Yashchuk