Research Papers

Submitted (2017)
Compact 20 pA - 0.7 µA CMOS biphasic current injector for electrode-based stimulation with a switched capacitor topology
by Jeffrey Abbott, Tianyang Ye, Vince Wu, Keith Krenek, Hongkun Park, and Donhee Ham.

Nature Nanotechnology 12, 460 (2017)
CMOS nanoelectrode array for all-electrical intracellular electrophysiological imaging
by Jeffrey Abbott, Tianyang Ye, Ling Qin, Marsela Jorgolli, Rona S. Gertner, Donhee Ham, and Hongkun Park.
[ Online ] [ PDF ] [ Supplementary Information ]

Advanced Materials 29, 1605198 (2017)
Gigahertz electromagnetic structures via direct ink writing for radio-frequency oscillator and transmitter applications
by Nanjia Zhou, Chengye Liu, Jennifer Lewis, and Donhee Ham.
[ Advanced Online Publication ] [ PDF ] [ Supplementary Information ]

IEEE Transactions on Electron Devices 63, 3249 (2016)
Optimization of CMOS-ISFET-based biomolecular sensing: analysis and demonstration in DNA detection
by Guangyu Xu, Jeffrey Abbott, and Donhee Ham.
[ PDF ]

Nanotechnology 26, 354002 (2015)
Plasmonic mass and Johnson-Nyquist noise
by Jingyee Chee, Hosang Yoon, Ling Qin, and Donhee Ham.
[ Online ] [ PDF ]

Nano Letters 15, 5001 (2015)
Symmetry engineering of graphene plasmonic crystals
by Kitty Yeung, Jingyee Chee, Yi Song, Jing Kong, and Donhee Ham.
[ Online ] [ PDF ]

Submitted
Experimental demonstration of hydrodynamic non-reciprocity in low-dimensional electron systems
by Jingyee Chee, Jundong Wu et al.

eMagRes 4, 117 (2015); DOI: 10.1002/9780470034590.emrstm1421
Next generation multi-dimensional NMR spectrometer based on semiconductor technology
by Dongwan Ha, Nan Sun, and Donhee Ham.
[ Online (eMagRes, John Wiley & Sons, Ltd.) ] [ PDF ]

Submitted
Calibration of field fluctuation in 2D NMR spectroscopy by spectral correlation
by Dongwan Ha, Aun Aun Zaidi, and Donhee Ham.

Nature Nanotechnology 9, 594 (2014)
Measurement of collective dynamical mass of Dirac fermions in graphene
by Hosang Yoon, Carlos Forsythe, Lei Wang, Nikolaos Tombros, Kenji Watanabe, Takashi Taniguchi, James Hone, Philip Kim, and Donhee Ham.
[ Online ] [ PDF ] [ Supplementary Information ] [ Nature Nanotechnology News & views ] [ Harvard news ]

Nature Communications 5:4866, doi:10.1038/ncomms5866 (2014)
Electrophoretic and field-effect graphene for all-electrical DNA array technology
by Guangyu Xu, Jeffrey Abbott, Ling Qin, Kitty Yeung, Yi Song, Hosang Yoon, Jing Kong, and Donhee Ham.
[ Online ] [ PDF ] [ Supplementary Information ]

Proc. Nat. Acad. Sci. (PNAS) 111, 11955 (2014)
Scalable NMR spectroscopy with semiconductor chips
by Dongwan Ha, Jeffrey Paulsen, Nan Sun, Yi-Qiao Song, and Donhee Ham.
[ Online ] [ PDF ] [ Supporting Information ] [ Harvard news ]

Applied Physics Letters 104, 244109 (2014)
High-dimensional chaos from self-sustained collisions of solitons
by O. Ozgur Yildirim and Donhee Ham.
[ Online ] [ PDF ]

Nano Letters 14, 2479 (2014)
Far-infrared graphene plasmonic crystals for plasmonic band engineering
by Kitty Yeung, Jingyee Chee, Hosang Yoon, Yi Song, Jing Kong, and Donhee Ham.
[ Online ] [ PDF ] [ Supporting Information ]

Philosophical Trans. Royal Society A 372, 20130104 (2014)
Plasmonics with two-dimensional conductors
by Hosang Yoon, Kitty Yeung, Philip Kim, and Donhee Ham.
[ Online ] [ PDF ]

Solid-State Electronics 84, 13 (2013)
Small NMR biomolecular sensors
by Nan Sun, Yong Liu, Ling Qin, Hakho Lee, Ralph Weissleder, and Donhee Ham.
[ Online ] [ PDF ]

Applied Physics Letters 102, 021104 (2013)
Two-path solid-state interferometry using ultra-subwavelength two-dimensional plasmonic waves
by Kitty Yeung, Hosang Yoon, Will Andress, Ken West, Loren Pfeiffer, and Donhee Ham.
[ Online ] [ PDF ] [ Supplementary Information ]

Nature 488, 65 (2012)
A Newtonian approach to extraordinarily strong negative refraction
by Hosang Yoon, Kitty Y. M. Yeung, Vladimir Umansky, and Donhee Ham.
[ Online ] [ PDF ] [ Supplementary Information ] [ Harvard Press Release ]

Nano Letters 12, 2272 (2012)
Ultra-subwavelength two-dimensional plasmonic circuits
by William Andress, Hosang Yoon, Kitty Y. M. Yeung, Ling Qin, Ken West, Loren Pfeiffer, and Donhee Ham.
[ Online ] [ PDF ]

European Solid-State Circuits Conference, pp. 269-272 (Sep. 2012)
A 2.9-mW 11-b 20-MS/s pipelined ADC with dual-mode-based digital background calibration
by Nan Sun, Hae-Seung Lee, and Donhee Ham.
[ PDF ] [ Slides ]

European Solid-State Device Research Conference + European Solid-State Circuits Conference (joint paper), pp. 14-17 (Sep. 2012)
Solid-state and biological systems interface (invited review article)
by Nan Sun, Yong Liu, Ling Qin, Guangyu Xu, and Donhee Ham.
[ PDF ]

IEEE Trans. VLSI Systems 20, 1590 (2012)
Time-domain CMOS temperature sensors with dual delay-locked loops for microprocessor thermal monitoring
by Dongwan Ha, Kyoungho Woo, Scott Meninger, Thucydides Xanthopoulos, Ethan Crain, and Donhee Ham.
[ PDF ]

IEEE RFIC Symposium, pp. 243-246 (June 2011)
Fully monolithic 18.7-GHz 16-ps GaAs mode-locked oscillators
by O. Ozgur Yildirim, Dongwan Ha, and Donhee Ham.
[ PDF ]

IEEE J. Solid-State Circuits 46 , 342 (2011)
Palm NMR and 1-chip NMR
by Nan Sun, Tae-Jong Yoon, Hakho Lee, Willliam Andress, Ralph Weissleder, and Donhee Ham.
[ PDF ]

arXiv:0908.2214
Phase diffusion and Lamb-shift-like spectrum shift in classical oscillators
by Xiaofeng Li, Wenjiang Zhu, and Donhee Ham.

IEEE Trans. Microwave Theory and Technique 58 , 2105 (2010)
Phase noise of distributed oscillators
by Xiaofeng Li, O. Ozgur Yildirim, Wenjiang Zhu, and Donhee Ham.
[ PDF ]

Advanced Materials 22, 2749 (2010)
Stretchable microfluidic radiofrequency antennas
by Masahiro Kubo, Xiaofeng Li (equal contribution with M. Kubo), Choongik Kim, Michinao Hashimoto, Benjamin J. Wiley, Donhee Ham, and George M. Whitesides.
[ PDF ]

Int. Symp. VLSI Design, Automation, and Test (Apr. 2010)
Silicon RF NMR biomolecular sensor - Review (invited paper)
by Nan Sun, Yong Liu, Hakho Lee, Ralph Weissleder, and Donhee Ham.
[ PDF ]

IEEE Internatinoal Solid-State Circuits Conference, pp. 488-489 (Feb. 2010)
Palm NMR and one-chip NMR
by Nan Sun, Tae-Jong Yoon, Hakho Lee, William Andress, Vasiliki Demas, Pablo Prado, Ralph Weissleder, and Donhee Ham.
[ PDF ]

Proc. Nat. Acad. Sci. 106, 21035 (2009)
Vertically integrated, three-dimensional nanowire complementary metal-oxide -semiconductor circuits
by Sungwoo Nam, Xiaocheng Jiang, Qihua Xiong, Donhee Ham, and Charles M. Lieber.
[ PDF ]

IEEE Trans. Microwave Theory and Technique 57 , 2344 (2009)
Reflection soliton oscillator
by O. Ozgur Yildirim, David S. Ricketts, and Donhee Ham.
[ PDF ]

Optics Express 17, 12925 (2009)
Mode-locked pulses from mid-infrared quantum cascade lasers
by Christine Y. Wang, L. Kuznetsova, V. M. Gkortsas, L. Diehl, F. X. Kartner, M. A. Belkin, A. Belyanin, Xiaofeng Li, Donhee Ham, H. Schneider, P. Grant, C. Y. Song, S. Haffouz, Z. R. Wasilewski, H. C. Liu, and Federico Capasso.
[ PDF ]

IEEE J. Solid-State Circuits 44, 1629 (2009)
CMOS RF biosensor utilizing nuclear magnetic resonance
by Nan Sun, Yong Liu, Hakho Lee, Ralph Weissleder, and Donhee Ham.
[ PDF ]

IEEE International Solid-State Circuits Conference, pp. 68-69 (Feb 2009)
Dual-DLL-based CMOS all-digital temperature sensor for microprocessor thermal monitoring
by Kyoungho Woo, Scott Meninger, Thucydides Xanthopoulos, Ethan Crain, Dongwan Ha, and Donhee Ham.
[ PDF ]

J. Vacuum Sci. Tech. B 26, 1848 (2008)
Gigahertz surface acoustic wave generation on ZnO thin films deposited by radio frequency magnetron sputtering on III-V semiconductor substrates
by Qi Jie Wang, Christian Pflügl, William F. Andress, Donhee Ham, Federico Capasso, and Masamichi Yamanish.
[ PDF ]

IEEE Trans. Circuits and Systems - II 55 , 877 (2008)
Digital background calibration in pipelined ADCs utilizing commutated feedback capacitor switching
by Nan Sun, Hae-Seung Lee, and Donhee Ham.
[ PDF ]

Nature Medicine 14, 869 (2008)
Chip-NMR biosensor for detection and molecular analysis of cells
by Hakho Lee, Eric Sun, Donhee Ham, and Ralph Weissleder.
[ PDF ]

Harvard Technical Report (Aug. 2008)
Digital acceleration of correlation-based digital background calibration in pipelined ADCs
by Nan Sun and Donhee Ham.
[ PDF ]

IEEE International Solid-State Circuits Conference , pp. 140-141 (Feb 2008)
CMOS mini nuclear magnetic resonance system and its application for biomolecular sensing
by Yong Liu, Nan Sun, Hakho Lee, Ralph Weissleder, and Donhee Ham.
[ PDF ]

Journal of Semiconductor Technology and Science (Sep. 2008)
Surpassing tradeoffs by separation: examples in transmission line resonators, phase-locked loops, and analog-to-digital converters (invited paper)
by Nan Sun, William Andress, Kyoungho Woo, and Donhee Ham.
[ PDF ]

IEEE J. Solid-State Circuits 43 , 379 (2008)
Fast-lock hybrid PLL combining fractional-N and integer-N modes of differing bandwidths
by Kyongho Woo, Yong Liu, Eunsoo Nam, and Donhee Ham.
[ PDF ]

SiRF (Jan. 2008)
Surpassing tradeoffs by separation: examples in frequency generation circuits
by William Andress, Kyoungho Woo, and Donhee Ham.
[ PDF ]

McGraw-Hill 2008 Yearbook of Science and Technology (2008)
Solitons in electrical networks
by Xiaofeng Li, David S. Ricketts, and Donhee Ham.
[ PDF ]

IEEE Solid-State Circuits Society Newsletter 12, 4 (2007)
The silicon that moves and feels small living things
by Donhee Ham and Robert M. Westervelt.
[ PDF ]

IEEE J. Solid-State Circuits 42, 1657 (2007)
On the self-generation of electrical soliton pulses
by David Ricketts, Xiaofeng Li, Nan Sun, Kyoungho Woo, and Donhee Ham.
[ PDF ] [ Comments & Response ]

IEEE VLSI Symposium, pp. 260-261 (June 2007)
Fast-lock hybrid PLL combining fractional- & integer- N modes of differing bandwidths
by Kyoungho Woo, Yong Liu, and Donhee Ham.
[ PDF ]

Lab on a Chip 7, 331 (2007)
Integrated cell manipulation system - CMOS/microfluidic hybrid
by Hakho Lee, Yong Liu, Donhee Ham, and Robert M. Westervelt.
[ PDF ]

IEEE International Solid-State Circuits Conference , pp. 176-177 (Feb. 2007)
All-digital dynamic self-detection and self-compensation of static phase offsets in charge-pump PLLs
by Yong Liu, Woogeun Rhee, Daniel Friedman, and Donhee Ham.
[ PDF ]

IEEE Communications Magazine 44 , 126 (2006)
Ordered and chaotic electrical solitons: communication perspectives
by Donhee Ham, Xiaofeng Li, Scott Denenberg, Thomas H. Lee, and David S. Ricketts.
[ PDF ]

IEEE Asian Solid-State Circuits Conference , pp. 419-422 (Nov. 2006)
CMOS meets bio
by Yong Liu, Hakho Lee, Robert M. Westervelt, and Donhee Ham.
[ PDF ]

IEEE Custom Integrated Circuits Conference , pp. 29-36 (Sep. 2006)
Passive & active control of regenerative standing & soliton waves
by William F. Andress, David S. Ricketts, Xiaofeng Li, and Donhee Ham.
[ PDF ]

IEEE LEOS Newsletter 20, 4 (2006)
Electrical soliton modelocking (invited cover article)
by David Ricketts, Xiaofeng Li, and Donhee Ham.
[ PDF ]

IEEE J. Solid-State Circuits 41 , 1471 (2006)
IC/Microfluidic hybrid system for magnetic manipulation of biological cells
by Hakho Lee, Yong Liu, Robert M. Westervelt, and Donhee Ham.
[ PDF ]

IEEE RFIC Symposium, pp. 33-36 (June 2006)
Taming electrical solitons - A new direction in picosecond electronics
by David S. Ricketts, Xiaofeng Li, and Donhee Ham.
[ PDF ]

IEEE International Solid-State Circuits Conference , pp. 432-433 (Feb. 2006)
A chip-scale electrical soliton modelocked oscillator
by David S. Ricketts and Donhee Ham.
[ PDF ]

IEEE Trans. Microwave Theory and Techniques 54, 373 (2006)
Electrical soliton oscillator
by David Ricketts, Xiaofeng Li, and Donhee Ham.
[ PDF ] [ Nature News & Views ] [ Harvard Gazette ]

IEEE Bipolar/BiCMOS Technology Meeting, pp. 174-179 (Oct. 2005)
IC/microfluidic hybrid system for biology: review (invited)
by Yong Liu, Hakho Lee, Robert M. Westervelt, and Donhee Ham.
[ PDF ]

IEEE International Microwave Symposium (June 2005)
A self-sustained electrical soliton oscillator
by David S. Ricketts, Xiaofeng Li, Matt DePetro, and Donhee Ham.
[ PDF ]

Nature 434, 1085 (2005)
High-speed integrated nanowire circuits
by Robin S. Friedman, Michael C. McAlpine, David S. Ricketts, Donhee Ham, and Charles M. Lieber.
[ PDF ] [ Harvard Gazette ] [ Harvard Crimson ]

IEEE J. Solid-State Circuits 40, 638 (2005)
Standing wave oscillators utilizing wave-adaptive tapered transmission lines
by William Andress and Donhee Ham.
[ PDF ]

IEEE International Solid-State Circuits Conference , pp. 80-81 (Feb. 2005)
An IC/microfluidic hybrid microsystem for 2D magnetic manipulation of individual biological cells
by Hakho Lee, Yong Liu, Eben Alsberg, Donald Ingber, Robert Westervelt, and Donhee Ham.
[ PDF ]

IEEE RFIC Symposium, pp. 119-122 (June 2004)
Recent developments in standing wave oscillator design: review (invited)
by William Andress and Donhee Ham.
[ PDF ]

IEEE VLSI Symposium, pp. 50-53 (June 2004)
Standing wave oscillators utilizing wave-adaptive tapered transmission lines
by William Andress and Donhee Ham.
[ PDF ]

IEEE International Solid-State Circuits Conference, pp. 380-381 (Feb. 2004)
A circular standing wave oscillator
by Donhee Ham and William Andress.
[ PDF ]

IEEE J. Solid-State Circuits 38, 407 (2003)
Virtual damping and Einstein relation in oscillators
by Donhee Ham et al.
[ PDF ]

IEEE Custom Integrated Circuits Conference, pp. 213-216 (May 2002)
Virtual damping in oscillators
by Donhee Ham et al.
[ PDF ]

IEEE J. Solid-State Circuits 36, 896 (2001)
Concepts and methods in optimization of integrated LC VCOs
by Donhee Ham et al.
[ PDF ]

IEEE International Sympositum on Circuits and Systems (May 2000)
Design and optimization of a low noise 2.4 GHz CMOS VCO with integrated LC tank and MOSCAP tuning
by Donhee Ham et al.
[ PDF ]

IEEE Custom Integrated Circuits Conference, pp. 439-442 (May 2000)
Complete noise analysis for CMOS switching mixers via stochastic differential equations
by Donhee Ham et al.
[ PDF ]