Z. Dong, F. Yang, J. S. Ho, "Enhanced electromagnetic energy harvesting with subwavelength chiral structures," Phys. Rev. Applied, 8, 044026 (2017).
Y. Tanabe, J. S. Ho, J. Liu, S. Liao, Z. Zhen, S. Hsu, C. Shuto, Z. Zhu, A. Ma, C. Vassos, P. Chen, H. F. Tse, A. S. Y. Poon, "High-performance wireless powering for peripheral nerve neuromodulation systems," PLoS One, 12(10), e0186698 (2017).
T. Chang, Y. Tanabe, C. C. Wojcik, A. C. Barksdale, S. Doshay, Z. Dong, H. Liu, M. Zhang, Y. Chen, Y. Su, T. H. Lee, J. S. Ho, and J. A. Fan, "A general strategy for stretchable microwave antenna systems using serpentine mesh layouts," Adv. Funct. Mater., 1703059 (2017).
S. Lee, W. Y. X. Peh, J. Wang, F. Yang, J. S. Ho, N. V. Thakor, S. C. Yen, C. Lee, "Toward bioelectronic medicine - neuromodulation of small peripheral nerves using flexible neural clip (FNC)," Adv. Science, 1700149 (2017).
H. U. Lee, A. Blasiak, D. R. Agrawal, D. T. B. Loong, N. V. Thakor, A. H. All, J. S. Ho, I. H. Yang, "Subcellular electrical stimulation of neurons enhances the myelination of axons by oligodendrocytes," PLoS One, 12 (7), e0179642 (2017).
S. Kim, J. S. Ho, A. S. Y. Poon, "Non-coil, optimal sources for wireless powering of sub-millimeter implantable devices", PIER, 158, 99-108 (2017).
D. R. Agrawal, Y. Tanabe, D. Weng, S. Liao, Z. Zhen, Z. Zhu, C. Sun, Z. Dong, F. Yang, H. F. Tse, A. S. Y. Poon, and J. S. Ho, “Conformal phased surfaces for wireless powering of bioelectronic microdevices,” Nat. Biomed. Eng., 1, 0043 (2017). Featured in News and Views
K. Montgomery*, A. J. Yeh*, J. S. Ho, V. Tsao, S. M. Iyer, L. Grosenick, E. A. Ferenczi, Y. Tanabe, K. Deisseroth, S. L. Delp, and A. S. Y. Poon, “Wirelessly powered, fully internal optogenetics for brain, spinal, and peripheral circuits in mice,” Nat. Methods, 12, 969-974 (2015). Featured on the cover.
J. S. Ho, Y. Tanabe, S. M. Iyer, A. J. Christensen, L. Grosenick, K. Deisseroth, S. L. Delp, and A. S. Y. Poon, “Self-tracking energy transfer for neural stimulation in untethered mice,” Phys. Rev. Applied, 4, 024001. Featured on Physics
J. S. Ho, Y. Tanabe, A. J. Yeh, S. Fan, and A. S. Y. Poon, “Planar immersion lens with metasurfaces,” Phys. Rev. B, 91, 125145 (2015).
J. S. Ho and A. S. Y. Poon, "Energy transfer for implantable electronics in the electromagnetic midfield", PIER, 148, 151-158 (2014).
J. S. Ho*, A. J. Yeh*, E. Neofytou, S. Kim, Y. Tanabe, B. Patlolla, R. E. Beygui, and A. S. Y. Poon, "Wireless power transfer to deep-tissue microimplants", Proc. Natl. Acad. Sci., USA, 111, 7974-7979 (2014). Featured on the cover.
A. J. Yeh, J. S. Ho, Y. Tanabe, E. Neofytou, R. E. Beygui, and A. S. Y. Poon, "Wirelessly powering miniature implants for optogenetic stimulation", Appl. Phys. Lett., 103, 163701 (2013).
J. S. Ho, S. Kim, and A. S. Y. Poon, "Midfield wireless powering for implantable systems", Proc. IEEE, 101, 1369 (2013).
S. Kim, J. S. Ho, and A. S. Y. Poon, "Midfield wireless powering of subwavelength autonomous devices", Phys. Rev. Lett., 110, 203905 (2013). Featured on Physics.
S. Kim, J. S. Ho, and A. S. Y. Poon, "Wireless power transfer to a cardiac implant", Appl. Phys. Lett., 101, 073701 (2012). Editor's Pick in Biophysics.
S. Kim, J. S. Ho, and A. S. Y. Poon, "Wireless power transfer to miniature Implants: transmitter optimization", IEEE. Trans. Antennas and Propag., vol. 60, no. 10, 4838, Oct. 2012.
 A. Romano and J. S. Ho, “Microwave to near-infrared conversion with a millimeter- scale wireless laser for activating molecular transducers,” IEEE Engineering in Medicine and Biology Conference 2016, Orlando, FL, Aug 2016.
 J. S. Ho and A. S. Y. Poon, "Conformal Microwave Lens for Focusing Across Inhomogenous Tissue," IEEE International Symposium on Antennas and Propagation 2016, Puerto Rico, USA, Jul 2016.
 J. S. Ho and A. S. Y. Poon, "Refraction and optimal focusing at a planar interface," Proc. Allerton Conference, Champaign, IL, Oct. 2014.
 A. J. Yeh, J. S. Ho, and A. S. Y. Poon, "Optical probe for input-impedance measurement of in vivo power-receiving microstructure," Proc. IEEE International Symposium on Antennas and Propagation (APS), Memphis, TN, July 2014.
 Y. Tanabe, H. Wong, S. Kim, J. S. Ho, and A. S. Y. Poon, "Beam focused slot antenna for microchip implants", International Symposium on Antennas and Propagation (ISAP), Nagoya, Japan, Oct 2012.
 Y. Tanabe, J. S. Ho, H. Wong, and A. S. Y. Poon, "Wireless powering for microchip Implants by cross-slot antenna", Asia-Pacific Microwave Conference, Kaohsiung, Taiwan, August 26, 2012.
 J. S. Ho, O. C. Au, J. Zhou, and Y. Guo, "Demosaicking interchannel traces for digital image forensics", ICME Content Protection & Forensics (CPAF), Singapore, Jul 2010.
In the Press
Wireless optogenetics with fully implantable devices. This work originally appeared in Physical Review Applied and Nature Methods.
- Stanford engineers develop a wireless, fully implantable device to stimulate nerves in mice. Featured on Stanford News. > Read more
- With a Better Optogenetic Light Switch, Scientists Can Flip Neurons On and Off. Featured on IEEE Spectrum. > Read more
- Wirelessly powered brain implant could treat depression. Featured on Fox News. > Read more
- For a summary of how it works, see Wireless Neural Implants on Physics Central.
Comment in article about energy harvesting. Featured on NBC News. > Read more
Experimental realization of wirelessly powered microimplants. This work originally appeared in Proceedings of the National Academy of Sciences.
- Stanford engineer invents safe way to transfer energy to medical chips in the body Featured on Stanford News. > Read more
- Wireless Medical Implant Is Smaller Than a Grain of Rice Featured on NBC. > Read more
- Wireless power breakthrough allows for 'electroceuticals' Featured on Wired. > Read more
- Stanford researchers develop tiny wireless implant Featured on SF Chronicle. > Read more
- Wireless pacemaker placed in rabbit Featured on BBC. > Read more
- Stanford Engineers' Electrifying Breakthrough Featured on ABC7. > Read more
- Wirelessly Powering Medical Chips Inside Your Body Featured on Forbes. > Read more
- No Batteries Here: New Implants Can Charge Through Your Body's Own Tissue Featured on Smithsonian. > Read more
- Wireless power for tiny medical implants Featured on Physics Today. > Print edition, Daily edition
- New wireless technology could help patients with medical implants Featured on NY Daily News. > Read more
And Science, EETimes, CNET, El Mundo, The Guardian, Fox News, Popular Science, The Telegraph, KQED, Il verendi, Naked Scientists, Journal of the American Medical Association, Newsweek, the Stanford Daily, MIT Technology Review.
Theoretical study on midfield wireless power transfer. This work originally appeared in Physical Review Letters.
- Focus: Wireless Power for Tiny Medical Devices Featured on Physics. > Read more
- Wireless Power Transfer Using Small Coils May Be Possible Featured on medGadget. > Read more
Computational study of wireless power transfer to a cardiac implant. This work originally appeared in Applied Physics Letters.
- Stanford researchers create tiny, wirelessly powered cardiac device Featured on Stanford Report. > Read more
- A millimeter-scale, wirelessly powered cardiac device Featured on APL Top Stories. > Read more