All Stories

  1. Waveguide-integrated microdisk lasers via ink-jet printing

    Article • Optics Letters, February 2026, Optical Society of America (OSA)

    Hiroaki Yoshioka

  2. Directional Whispering Gallery Mode in Microring Lasers Enabled by Tilted Azimuthal Gratings

    Article • Advanced Photonics Research, April 2025, Wiley

    Hiroaki Yoshioka

  3. Inkjet-printed waveguide-coupled passive wedge-shaped microdisk resonator with refractive index tunability

    Article • Optical Materials Express, June 2024, Optical Society of America (OSA)

    Hiroaki Yoshioka

  4. Phase wavefront perturbation calculation model for spectroscopic refractive index matching of hybrid materials

    Article • Applied Optics, April 2023, Optical Society of America (OSA)

    Hiroaki Yoshioka

  5. Pneumatically Tunable Droplet Microlaser

    Article • Laser & Photonics Review, February 2023, Wiley

    Hiroaki Yoshioka, Zhan-Hong Lin

  6. Embedding Optical Microcavities in Nanoporous SiO2 Film via Infill Inkjet Printing

    Article • Advanced Photonics Research, August 2022, Wiley

    Hiroaki Yoshioka

  7. Embedding Optical Microcavities in Nanoporous SiO 2 Film via Infill Inkjet Printing

    Article • Advanced Photonics Research, May 2022, Wiley

    Hiroaki Yoshioka

  8. Narrow-bandpass transparent/diffusing materials using soft scattering based on dispersed refractive index difference

    Article • Optical Materials Express, January 2022, Optical Society of America (OSA)

    Hiroaki Yoshioka

  9. Solid phase dye molecular dispersion property of PDMS-based thermoplastic elastomer

    Article • Optical Materials Express, December 2021, Optical Society of America (OSA)

    Hiroaki Yoshioka

  10. Polarization-dependent refractive index analysis for nanoporous microcavities by ray tracing of a propagating electromagnetic field

    Article • Optical Materials Express, August 2021, Optical Society of America (OSA)

    Hiroaki Yoshioka

  11. Compact and on-demand 3D-printed optical device based on silicone optical technology (SOT) for on-site measurement: Application to flow injection analysis

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

    Chacriya Malasuk, Kinichi Morita, Hiroaki Yoshioka

  12. Lasing characteristics of a pyrromethene597-doped microdisk laser fabricated by the ink-jet printing method

    Article • Japanese Journal of Applied Physics, July 2019, Japan Society of Applied Physics

    Hiroaki Yoshioka

  13. Changes in optical characteristics induced by polymer blending in printed colloidal quantum dots microlasers

    Article • Optics Express, June 2019, Optical Society of America (OSA)

    Hiroaki Yoshioka

  14. 3D printing optical devices based on silicone optical technology (SOT) and its application on analytical chemistry

    Article • February 2019, SPIE

    Hiroaki Yoshioka

  15. Fluorescence lifetime elongation of thermally activated delayed fluorescence 4CzIPN molecules with encapsulation into zeolitic imidazole frameworks ZIF-11

    Article • Optical Materials Express, February 2019, Optical Society of America (OSA)

    Hiroaki Yoshioka

  16. Investigation and modeling of UV band-pass-filtering white compound materials for potting or embedding in micro-optical applications

    Article • Optical Materials Express, February 2019, Optical Society of America (OSA)

    Hiroaki Yoshioka

  17. Demonstration of on-chip quantum dot microcavity lasers in a molecularly engineered annular groove

    Article • Optics Letters, January 2019, Optical Society of America (OSA)

    Hiroaki Yoshioka

  18. Improvement of lasing threshold of ink-jet printed polymeric microdisk cavity by precise controlled wet etching

    Article • January 2019, Optical Society of America (OSA)

    Hiroaki Yoshioka

  19. Lasing from Printable Organic-Inorganic Microdisk Cavity with Mixed Doping of Laser Dye and ZnO

    Article • September 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Hiroaki Yoshioka

  20. Organic-inorganic hybrid microdisk laser with dye and silica mixed doping prepared by ink-jet printing method

    Article • Optics Express, March 2018, Optical Society of America (OSA)

    Hiroaki Yoshioka

  21. Effects of edge inclination angles on whispering-gallery modes in printable wedge microdisk lasers

    Article • Optics Express, January 2018, Optical Society of America (OSA)

    Hiroaki Yoshioka

  22. Highly Transparent Organic Microdisk Cavity in Visible Range by the Ink-jet Printing Method

    Article • January 2018, Optical Society of America (OSA)

    Hiroaki Yoshioka

  23. Novel spectroscopic transparent/scattering material for 260/280nm ultraviolet optical detection

    Article • January 2018, Optical Society of America (OSA)

    Hiroaki Yoshioka

  24. On-demand lens fabrication by liquid phase molding with gallium and Polydimethylsiloxane

    Article • January 2018, Optical Society of America (OSA)

    Hiroaki Yoshioka

  25. Gallium and polydimethylsiloxane molding for self-organized spherical lens surface fabrication

    Article • Applied Optics, December 2017, Optical Society of America (OSA)

    Hiroaki Yoshioka

  26. Carbon–polydimethylsiloxane-based integratable optical technology for spectroscopic analysis

    Article • Talanta, May 2017, Elsevier

    Hiroaki Yoshioka

  27. 6.3 eV DUV Generation Based on Microchip Nd:YAG Laser

    Article • January 2017, Optical Society of America (OSA)

    Hiroaki Yoshioka

  28. Silica-based Inorganic Microdisk Cavity by the Ink-jet Printing Method

    Article • January 2017, Optical Society of America (OSA)

    Hiroaki Yoshioka

  29. Controlling mobility speed of dye molecules in polydimethylsiloxane through molecular weight and solubility

    Article • Optical Materials Express, October 2016, Optical Society of America (OSA)

    Hiroaki Yoshioka

  30. 06 – 16 THz band spectroscopy of organic thermally activated delayed fluorescence materials

    Article • Optical Materials Express, September 2016, Optical Society of America (OSA)

    Hiroaki Yoshioka

  31. Spectroscopic behavior in whispering-gallery modes by edge formation of printed microdisk lasers

    Article • December 2015, SPIE

    Hiroaki Yoshioka

  32. Absorbance-meter constructed by PDMS

    Article • October 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Hiroaki Yoshioka

  33. Extreme ultra-low lasing threshold of full-polymeric fundamental microdisk printed with room-temperature atmospheric ink-jet technique

    Article • Scientific Reports, May 2015, Springer Science + Business Media

    Hiroaki Yoshioka

  34. Low-threshold lasing from organic and polymeric microdisk printed by room temperature atmosphere ink-jet technique

    Article • March 2015, SPIE

    Hiroaki Yoshioka

  35. On-Demand Fabrication of Micro-Wired Rods and Nano-Coupling Control for 3D Polymeric Optical System

    Article • January 2015, Optical Society of America (OSA)

    Hiroaki Yoshioka

  36. Stackable spectral-sensitive conductive films based on cyanine aggregates via an inkjet method

    Article • Dyes and Pigments, September 2013, Elsevier

    Hiroaki Yoshioka

  37. Fluorene-based chromophore for degradation-recoverable solid-state dye laser

    Article • Optical Materials Express, January 2013, Optical Society of America (OSA)

    Hiroaki Yoshioka

  38. Spectral-resolving capable and integratable multilayered conductive films via an inkjet method

    Article • Journal of Materials Chemistry C, January 2013, Royal Society of Chemistry

    Hiroaki Yoshioka

  39. Optical bending sensor using distributed feedback solid state dye lasers on optical fiber

    Article • Optics Express, June 2012, Optical Society of America (OSA)

    Hiroaki Yoshioka

  40. Fundamental characteristics of degradation- recoverable solid-state DFB polymer laser

    Article • Optics Express, February 2012, Optical Society of America (OSA)

    Hiroaki Yoshioka

  41. Intensity Sensitive Organic Photodiodes Patterned by Inkjet Method

    Article • Molecular Crystals and Liquid Crystals, May 2011, Taylor & Francis

    Hiroaki Yoshioka

  42. Laser Action of Nd-Complex-Doped Polymer Laser Based on Liquid

    Article • Molecular Crystals and Liquid Crystals, May 2011, Taylor & Francis

    Hiroaki Yoshioka

  43. Degradation recoverable DFB lasers based on P597:PDMS/PTFEMA

    Article • May 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Hiroaki Yoshioka

  44. Dual-wavelength mode-locked Yb:YAG
ceramic laser in single cavity

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

    Hiroaki Yoshioka

  45. 233-fs mode-locked Yb:YAG ceramic laser

    Article • August 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Hiroaki Yoshioka

  46. Broadly Tunable Yb3+-Doped Y3Al5O12Ceramic Laser at Room Temperature

    Article • Japanese Journal of Applied Physics, June 2009, Japan Society of Applied Physics

    Hiroaki Yoshioka

  47. Diode-pumped mode-locked Yb:YAG ceramic laser

    Article • Optics Express, May 2009, Optical Society of America (OSA)

    Hiroaki Yoshioka

  48. Efficient tunable Yb:YAG ceramic laser

    Article • Optics Communications, September 2008, Elsevier

    Hiroaki Yoshioka

  49. Efficient tunable diode-pumped Yb:YAG ceramic laser

    Article • May 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Hiroaki Yoshioka