Research

Our lab develops advanced optical imaging technology and novel miniaturized devices, and use these new tools to investigate problems in neuroscience and biomedicine. Our research topics include biophotonics, optical imaging, two-photon microscopy, implantable biomedical devices, MEMs/NEMs devices, metastructures, brain imaging and modulation, and neural circuits.

Multiphoton microscopy

Multiphoton microscopy is a powerful tool in brain research as it can monitor and modulate neural activity at cellular resolution over large field of view. We combine hardware innovations and computational algorithms to enable high-throughput calcium imaging and holographic optogenetics.

Simultaneous Multiplane ImagingSimultaneous multiplane imaging of mice cortical activity in vivo

3D Optogenetics3D optogenetics and volumetric imaging of mice cortical activity in vivo

Selected Publications
  • W. Yang, “Manipulating neuronal circuits, in concert,” Science 373, abj5260 (2021). [Link]
  • S. Han*, W. Yang*, and R. Yuste, "Two-color volumetric imaging of neuronal activity of cortical columns," Cell Reports 27, 2229-2240.E4 (2019).[Link] *Equal contribution.
  • W. Yang, and R. Yuste, "Holographic imaging and photostimulation of neural activity," Current Opinion in Neurobiology 50, 211-221 (2018).[Link]
  • W. Yang, L. Carrillo-Reid, Y. Bando, D. S. Peterka, and R. Yuste, "Simultaneous two-photon imaging and two-photon optogenetics of cortical circuits in three dimensions," eLife 7, e32671 (2018).[Link]
  • W. Yang, and R. Yuste, "In vivo imaging of neural activity," Nature Methods 14, 349-359 (2017).[Link]
  • W. Yang, J. K. Miller, L. Carrillo-Reid, E. Pnevmatikakis, L. Paninski, R. Yuste, and D. S. Peterka, "Simultaneous multi-plane imaging of neural circuits," Neuron 89, 269-284 (2016).[Link]
  • E. Pnevmatikakis, D. Soudry, Y. Gao, T. Machado, J. Merel, D. Pfau, T. Reardon, Y. Mu, C. Lacefield, W. Yang, M. Ahrens, R. Bruno, T. Jessell, D. S. Peterka, R. Yuste, and L. Paninski, "Simultaneous denoising, deconvolution, and demixing of calcium imaging data," Neuron 89, 285-299 (2016).[Link]
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Computational imaging

Computational imaging is an emerging field that jointly optimizes the imaging hardware and object reconstruction algorithms to achieve desired imaging quality. Leveraging recent advance in rapid prototyping of 3D micro optics as well as machine learning, we develop new imaging devices with advanced properties and functions such as compact footprint, 3D imaging and high acquisition speed.

GEOMScopeGEOMScope: Large field-of-view 3D lensless microscopy with low computational complexity (selected as the inside front cover article of Laser & Photonics Reviews August 2021 issue)

Deep Compressed ImagingDeep compressed imaging via optimized pattern scanning (selected as the cover article of Photonics Research March 2021 issue)

Selected Publications

Photonic devices and systems

Photonics could play an important role in the next generation of biomedical devices and systems. We aim to exploit the rich physics of light-matter interaction and develop new modality of light generation, manipulation and detection, with an emphasis for biomedical applications.

High speed optical phased arrayHigh speed optical phased array

Self-wavelength-swept VCSELSelf-wavelength-swept high contrast grating vertical-cavity surface-emitting laser

Selected Publications
  • J. Hu, W. Yang, “Metalens array with controllable angle of view for compact, large field-of-view microscopy,” Conference on Lasers and Electro-Optics (Optical Society of America, 2021), paper FTu4H.1.[Link]
  • P. Qiao, W. Yang, and C. Chang-Hasnain, "Recent advances in high-contrast metastructures, metasurfaces and photonic crystals," Advances in Optics and Photonics 10, 180-245 (2018).[Link]
  • W. Yang, S. A. Gerke, K. W. Ng, Y. Rao, C. Chase and C. J. Chang-Hasnain, "Laser Optomechanics," Scientific Reports 5, 13700 (2015).[Link]
  • W. Yang, T. Sun, Y. Rao, M. Megens, T. Chan, B.-W. Yoo, D. A. Horsley, M. C. Wu and C. J. Chang-Hasnain, "High speed optical phased array using high contrast grating all-pass filters," Optics Express 22, 20038-20044 (2014).[Link]
  • C. J. Chang-Hasnain and W. Yang, "High contrast gratings for integrated optoelectronics," Advances in Optics and Photonics 4, 379-440 (2012).[Link]
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Neuroscience

Understand how neural circuit works could be a key step towards deciphering how the brain works. Using advanced technologies, we study the functional organization and plasticity of neural circuits.

Imprinting cortical ensemblesImprinting cortical ensembles by photostimulation training

Triggering behaviorControlling visually guided behavior by holographic recalling of cortical ensembles

Selected Publications
  • J.P. Hamm, Y. Shymkiv, S. Han, W. Yang, and R. Yuste, "Cortical ensembles selective for context," Proceedings of the National Academy of Sciences 118, e2026179118 (2021).[Link]
  • Q. Liu, Y. Jiao, W. Yang, B. Gao, D. K. Hsu, J. Nolta, M. Russell, B. Lyeth, T. P. Zanto, and M. Zhao, "Intracranial alternating current stimulation facilitates neurogenesis in a mouse model of Alzheimer’s disease," Alzheimer's Research & Therapy 12, 89 (2020).[Link]
  • L. Carrillo-Reid, S. Han, W. Yang, A. Akrouh, and R. Yuste, "Controlling Visually Guided Behavior by Holographic Recalling of Cortical Ensembles," Cell 178, 447-457.e5 (2019).[Link]
  • L. Carrillo-Reid, W. Yang, J. K. Miller, D. S. Peterka and R. Yuste, "Imaging and optically manipulating neuronal ensembles," Annual Review of Biophysics 46, 271-293 (2017).[Link]
  • L. Carrillo-Reid, W. Yang, Y. Bando, D. Peterka, and R. Yuste, "Imprinting and recalling cortical ensembles," Science 353, 691-694 (2016). [Link]
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