Now showing items 1-14 of 14

    • Advances in infrared GRIN: a review of novel materials towards components and devices 

      Richardson, Kathleen; Kang, Myungkoo; Sisken, Laura; Yadav, Anupama; Blanco, Cesar; e.a. (SPIE, 2018-05)
      © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only. Novel optical materials capable of advanced functionality in the infrared will enable optical designs that can offer lightweight or small ...
    • Broadband Transparent Optical Phase Change Materials 

      Li, Junying; Yadav, Anupama; Lin, Hongtao; Du, Qingyang; Michon, Jerome; e.a. (Optical Society of America, 2017-05)
      We report a new group of optical phase change materials Ge-Sb-Se-Te (GSST) with low loss from telecom bands to LWIR. We further demonstrated GSST-integrated SiN photonics with significantly improved switching performance ...
    • Broadband transparent optical phase change materials for high-performance nonvolatile photonics 

      Zhang, Yifei; Chou, Jeffrey B.; Li, Junying; Li, Huashan; Du, Qingyang; e.a. (Springer Science and Business Media LLC, 2019-09)
      Optical phase change materials (O-PCMs), a unique group of materials featuring exceptional optical property contrast upon a solid-state phase transition, have found widespread adoption in photonic applications such as ...
    • Chalcogenide glass-on-graphene photonics 

      Lin, Hongtao; Song, Yi; Huang, Yizhong; Kita, Derek M.; Wang, Kaiqi; e.a. (Springer Nature, 2017-10)
      Two-dimensional (2D) materials are of tremendous interest to integrated photonics, given their singular optical characteristics spanning light emission, modulation, saturable absorption and nonlinear optics. To harness ...
    • High-performance flexible waveguide-integrated photodetectors 

      Li, Lan; Lin, Hongtao; Huang, Yizhong; Shiue, Ren-Jye; Yadav, Anupama; e.a. (The Optical Society, 2018)
      © 2018 Optical Society of America. Mechanically flexible photonic devices are essential building blocks for novel bio-integrated optoelectronic systems, wearable sensors, and flexible consumer electronics. Here we describe ...
    • Integrated photonic materials for the mid‐infrared 

      Yadav, Anupama; Agarwal, Anuradha Murthy (Wiley, 2020-04-08)
    • Integrated photonics for infrared spectroscopic sensing 

      Yadav, Anupama; Richardson, Kathleen; Lin, Hongtao; Kita, Derek M.; Han, Zhaohong; e.a. (SPIE, 2017-05)
      Infrared (IR) spectroscopy is widely recognized as a gold standard technique for chemical analysis. Traditional IR spectroscopy relies on fragile bench-Top instruments located in dedicated laboratory settings, and is thus ...
    • (Invited) Mechanically Flexible Integrated Photonic Systems for Sensing and Communications 

      Yadav, Anupama; Richardson, Kathleen A; Li, Lan; Lin, Hongtao; Michon, Jerome; e.a. (Electrochemical Society, 2017-04)
      Conventional integrated photonic devices are fabricated on rigid semiconductor or dielectric substrates and are therefore inherently incompatible with soft biological tissues. Over the past few years, we have developed a ...
    • Monolithically integrated stretchable photonics 

      Li, Lan; Lin, Hongtao; Qiao, Shutao; Huang, Yi-Zhong; Li, Jun-Ying; e.a. (Springer Science and Business Media LLC, 2018)
      © The Author(s) 2018. Mechanically stretchable photonics provides a new geometric degree of freedom for photonic system design and foresees applications ranging from artificial skins to soft wearable electronics. Here we ...
    • A new twist on glass: A brittle material enabling flexible integrated photonics 

      Li, Lan; Lin, Hongtao; Michon, Jerome; Huang, Yizhong; Li, Junying; e.a. (Wiley Blackwell, 2017-03)
      Glass is in general brittle and therefore usually cannot sustain large deformation. Recent advances in glass material development as well as micro-mechanical designs, however, are set to defy the conventional wisdom through ...
    • Nonlinear optical properties of integrated GeSbS chalcogenide waveguides 

      Serna, Samuel; Lin, Hongtao; Alonso-Ramos, Carlos; Yadav, Anupama; Le Roux, Xavier; e.a. (The Optical Society, 2018)
      © 2018 Chinese Laser Press. In this paper, we report the experimental characterization of highly nonlinear GeSbS chalcogenide glass waveguides. We used a single-beam characterization protocol that accounts for the magnitude ...
    • On-chip infrared sensors: redefining the benefits of scaling 

      Agarwal, Anu; Yadav, Anupama; Richardson, Kathleen; Luzinov, Igor; Kita, Derek M.; e.a. (SPIE, 2017-05)
      Infrared (IR) spectroscopy is widely recognized as a gold standard technique for chemical and biological analysis. Traditional IR spectroscopy relies on fragile bench-top instruments located in dedicated laboratory settings, ...
    • Thermal conductivity of chalcogenide glasses measured by Raman spectroscopy 

      Yadav, Anupama; Kita, Derek; Su, Peter; Agarwal, Anuradha; Hu, Juejun; e.a. (SPIE, 2018-5-8)
      © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only. We review the potential and limitations of a temperature-dependent Raman Scattering Technique (RST) as a nondestructive optical tool to ...
    • Understanding aging in chalcogenide glass thin films using precision resonant cavity refractometry 

      Geiger, Sarah J.; Du, Qingyang; Huang, Bin; Shalaginov, Mikhail; Michon, Jerome; e.a. (Optical Society of America (OSA), 2019-04)
      Chalcogenide glass (ChG) thin films have a wide range of applications in planar photonics that rely on the stability of their optical properties. However, most methods do not provide quantitative optical property data at ...