(as of Feb 2021)
 S. H. Kim et al.,
A bioinspired stretchable sensory-neuromorphic system, submitted (2021).
 M. A. Abbasi, M. Faraz, M. G. Joo, D. Son, S. M. Won, J. G. Ok, H. J. Park, and H. W. Baac,
Variable-Focus Optoacoustic Lens with Wide Dynamic Range and Long Focal Length by using a Flexible Polymer Nano-Composite Membrane,
Ultrasonics submitted (2021).
 M. Joo and H. W. Baac,
Rigorous Characterization of Fiber-Optic Hydrophone Responses by using a Finite-Element-Based Rigid-Piston Model and a Broadband Photoacoustic Pulse,
J. Sound Vib. submitted (2021).
 H. Seo , S. I. Han, K.-I. Song , D. Seong , K. Lee , S. H. Kim, T. Park, J. H. Koo, M. Shin, H. W. Baac, O. K. Park , S. J. Oh, H.-S. Han, H. Jeon, Y.-C. Kim, D.-H. Kim, T. Hyeon, and D. Son,
Durable and fatigue-resistant soft peripheral neuroprosthetics for in vivo bidirectional signaling,
Adv. Mater. accepted (2021).
 J. Choi, E. Kamaraj, H. Park, B. H. Jeong, H. W. Baac, S. Park, and H. J. Park,
Defect-passivation of organometal trihalide perovskite with functionalized organic small molecule for enhanced device performance and stability,
Dyes Pigm. 189, 109255 (2021).
 J. Heo, D. Biswas, K. K. Park, D. Son, H. J. Park, and H. W. Baac,
Laser-Generated Focused Ultrasound Transducer using a Perforated Photoacoustic Lens
for Tissue Characterization,
Biomed. Opt. Express 12(3), 1375 (2021).
 J. Park, K.-T. Lee, G. Yeon, J. Choi, M. Kim, B. Han, H. W. Baac, L. J. Guo,
and J. G. Ok,
Demonstration of the One-Step Continuous Fabrication of Flexible Polymer Ridge Waveguides via Nanochannel-Guided Lithography,
J. Ind. Eng. Chem. 95, 286 (2021).
 T. Lee, Y. Cheong, H. W. Baac, and L. J. Guo,
Origin of Gouy Phase Shift Identified by Laser-Generated Focused Ultrasound,
ACS Photonics 7(11), 3236 (2020).
 S. Lee, J. Lee, H. Park, J. Choi, H. W. Baac, S. Park, and H. J. Park,
Defect-Passivating Organic/Inorganic Bicomponent Hole-Transport Layer for High Efficiency Metal-Halide Perovskite Device,
ACS Appl. Mater. Interfaces 12(36), 40310 (2020).
 M. Faraz, M. A. Abbasi, P. Sang, D. Son, and H. W. Baac,
Stretchable and Robust Candle-Soot Nanoparticle-Polydimethylsiloxane Composite Films for Laser-Ultrasound Transmitters,
Micromachines 11(7), 631 (2020).
 S. Lee, D. Seong, J. Yoon, S. Lee, H. W. Baac, D. Lee, and D. Son,
A Skin-Conformal, Stretchable, and Breathable Fiducial Marker Patch for Surgical Navigation Systems,
Micromachines 11(2), 194 (2020).
 D. Biswas, G. C. K. Chen, H. W. Baac, and S. Vasudevan,
Photoacoustic Spectral Sensing Technique for Diagnosis of Biological Tissue Coagulation: In-Vitro Study,
Diagnostics 10(3), 133 (2020).
 K.-T. Lee, S. Y. Han, Z. Li, H. W. Baac, and H. J. Park,
Flexible High-Color-Purity Structural Color Filters Based on a Higher-Order Optical Resonance Suppression,
Sci. Rep. 9, 14917 (2019).
 M. G. Joo, K.-T. Lee, P. Sang, J. Heo, H. J. Park, and H. W. Baac,
Laser-generated focused ultrasound transmitters with frequency-tuned output
over sub-10-MHz range,
Appl. Phys. Lett. 115(15), 154103 (2019).
 W. Lim, S. Lee, S. Park, and H. W. Baac,
Differential detachment of intact and viable cells of different sizes using laser-induced microbubbles,
Biomed. Opt. Express 10(10), 4919 (2019).
 J. Heo, K.-T. Lee, R. K. Kim, and H. W. Baac,
Side-Polished Fiber-Optic Line Sensor for High-Frequency Broadband Ultrasound Detection,
Sensors 19(2), 398 (2019).
 T. Lee, H. W. Baac, Q. Li, and L. J. Guo,
Efficient Photoacoustic Conversion in Optical Nanomaterials and Composites,
Adv. Opt. Mater. 6(24), 1800491 (2018).
 K.-T. Lee, H. W. Baac, D. H. Park, J. G. Ok, and H. J. Park,
Enhanced Optical Properties of Colored Semitransparent Ultrathin Hybrid
Solar Cells Employing Fabry-Perot Etalon with a Dielectric Overlay,
IEEE Photonics J. 10(6), 8400510 (2018).
 P. G. Sang, J. Heo, H. J. Park, and H. W. Baac,
Photoacoustic Energy Sensor for Nanosecond Optical Pulse Measurement,
Sensors 18(11), 3879 (2018).
 K.-T. Lee, D. H. Park, H. W. Baac, and S. Han,
Graphene- and Carbon-Nanotube-Based Transparent Electrodes for
Semitransparent Solar Cells,
Materials 11(9), 1503 (2018).
 S. J. Park, J. G. Ok, H. J. Park, K.-T. Lee, J. H. Lee, J. D. Kim, E. Cho,
H. W. Baac, S. Kang, L. J. Guo, and A. J. Hart,
Modulation of the effective density and refractive index of carbon nanotube forests via nanoimprint lithography,
Carbon 129, 8 (2018).
 T. Lee, H. W. Baac, J. G. Ok, and L. J. Guo,
Polymer-Nanomaterial Composites for Optoacoustic Conversion,
Functional Organic and Hybrid Nanostructured Materials Bookchapter (Wiley-VCH), 519-546 (2018).
 Y.-C. Chen, H. W. Baac, K.-T. Lee, S. Fouladdel, K. Teichert, J. G. Ok, Y.-H. Cheng, P. Ingram, A. J. Hart, E. Azizi, L. J. Guo, M. Wicha, and E. Yoon,
Selective photo-mechanical detachment and retrieval of divided sister cells from enclosed microfluidics for downstream analyses,
ACS Nano 11(5), 4660 (2017).
 X. Wang, W. Cho, H. W. Baac, D. Seo, and I. H. Cho,
Optimization of double gate vertical channel tunneling field effect transistor (DVTFET) with sidewall dielectric layer,
J. Semicond. Tech. Sci. 17(2), 192 (2017).
 A. Akter, G. Yoo, S. Kim, H. W. Baac, and J. Heo,
AlxGa1-xN cladding effect on intraband absorption of InGaN disk embedded in GaN nanowire,
J. Nanosci. Nanotech. 17(5), 3279 (2017).
 Y. Park, S. Lee, H. J. Park, H. W. Baac, G. Yoo, and J. Heo,
Hybrid metal-halide perovskite-MoS2 phototransistor,
J. Nanosci. Nanotech. 16, 11722 (2016).
 G. Yoo, Y. Park, P. Sang, H. W. Baac, and J. Heo,
High-frequency optoacoustic transmitter based on nanostructured germanium via metal-assisted chemical etching,
Opt. Mater. Express 6, 2567 (2016).
 Y. Park, H. W. Baac, G. Yu, and J. Heo,
Thermally activated trap charges responsible for hysteresis in multilayer MoS2 field-effect transistors,
Appl. Phys. Lett. 108, 083102 (2016).
 T. Lee, J. G. Ok, L. J. Guo, and H. W. Baac,
Low f-number photoacoustic lens for tight ultrasonic focusing and free-field micro-cavitation in water,
Appl. Phys. Lett. 108, 104102 (2016).
 S. Koo, S. H. Lee, J. D. Kim, J. G. Hong, H. W. Baac, M. K. Kwak, and J. G. Ok,
Controlled airbrush coating of polymer resists in roll-to-roll nanoimprinting with regimented residual layer thickness,
Int. J. Precis. Eng. Man. 17, 943 (2016).
 H. W. Baac, J. G. Ok, T. Lee, and L. J. Guo,
Nano-structural characteristics of carbon nanotube-polymer composite films for high-amplitude optoacoustic generation,
Nanoscale 7, 14460 (2015).
 T. Lee, H. W. Baac, J. G. Ok, H. S. Youn, and L. J. Guo,
Nozzle-free liquid micro-jetting via homogeneous bubble nucleation,
Phys. Rev. Appl. 3, 044007 (2015).
 G. Yu, H. Yoon, J. Heo, U. Thakur, H. J. Park, H. W. Baac*, and J. S. Heo*,
All-Optical Ultrasound Transducer using CNT-PDMS and etalon Thin-Film Structure,
IEEE Photonics J. 7(6), 6803708 (2015).
 K. Beaudette, H. W. Baac, W.-J. Madore, M. Villiger, N. Godbout, B. E. Bouma, and C. Boudoux,
Double-clad fiber coupler for image-guided laser tissue coagulation,
Biomed. Opt. Express 6(4), 1293 (2015).
 U. Thakur, B.-G. Kim, S. J. Park, H. W. Baac*, D. Lee*, and H. J. Park*,
Soft-contact printing of nanoparticle-based nanoink for functional nanopatterns,
J. Nanomater. 723256, 1-6 (2015).
 T. Lee, H. W. Baac, J. G. Ok, H. S. Youn, and L. J. Guo,
Controlled generation of single-microbubble at solid surfaces by a nanosecond pressure pulse,
Phys. Rev. Appl. 2, 024007 (2014).
 H. W. Baac, N. Uribe-Patarroyo, and B. E. Bouma,
High-energy pulsed Raman fiber laser for biological tissue coagulation,
Opt. Express 22(6), 7113 (2014).
 J. G. Ok, J. Y. Lee, H. W. Baac, H. S. Youn, S. H. Tawfick, L. J. Guo, and A. J. Hart,
Rapid anisotropic photoconductive response of ZnO-coated aligned CNT sheets,
ACS Appl. Mater. Interfaces 6(2), 874 (2014).
 H. W. Baac, T. Lee, J. G. Ok, T. Hall, and L. J. Guo,
Dual-frequency focused ultrasound using optoacoustic and piezoelectric transmitters for single-pulsed free-field cavitation in water,
Appl. Phys. Lett. 103, 234103 (2013).
 H. W. Baac, T. Lee, and L. J. Guo,
Micro-ultrasonic cleaving of cell clusters by laser-generated focused ultrasound and its mechanisms,
Biomed. Opt. Express 4(8), 1442 (2013).
 H. W. Baac, J. Frampton, J. G. Ok, S. Takayama, and L. J. Guo,
Localized micro-scale disruption of cells using laser-generated focused ultrasound,
J. Biophoton. 6, 905 (2013).
 H. W. Baac, J. G. Ok, A. Maxwell, K.-T. Lee, Y.-C. Chen, A. J. Hart, Z. Xu, E. Yoon, and L. J. Guo,
Carbon-nanotube optoacoustic lens for focused ultrasound generation and high-precision targeted therapy,
Sci. Rep. 2, 989 (2012).
 H. Shi, J. G. Ok, H. W. Baac, and L. J. Guo,
Low density carbon nanotube forest as an index-matched and near perfect absorption coating,
Appl. Phys. Lett. 99, 211103 (2011).
 H. W. Baac, J. G. Ok, H. J. Park, T. Ling, S.-L. Chen, A. J. Hart, and L. J. Guo,
Carbon nanotube composite optoacoustic transmitters for strong and high frequency ultrasound generation,
Appl. Phys. Lett. 97, 234104 (2010).
 S.-L. Chen, T. Ling, S.-W. Huang, H. W. Baac, and L. J. Guo,
Photoacoustic correlation spectroscopy and its application to low-speed flow measurement,
Opt. Lett. 35(8), 1200 (2010).
 H. W. Baac, T. Ling, S. W. Huang, S. Ashkenazi, and L. J. Guo,
Characterization of optical microring ultrasound detector by using a high frequency focused photoacoustic transmitter,
Appl. Phys. Lett. 95, 144105 (2009).
 S. A. Kim, K. M. Byun, J. Lee, J. H. Kim, D.-G. A. Kim, H. Baac, M. L. Shuler, and S. J. Kim,
Optical measurement of neural activity using surface plasmon resonance,
Opt. Lett. 33(9), 918 (2008).
 H. Baac, J. Hajos, J. Lee, D. Kim, S. J. Kim, and M. Shuler,
Antibody-Based Surface Plasmon Resonance Detection of Intact Viral Pathogen,
Biotechnol. Bioeng. 94(4), 815 (2006).
 J. K. Lee, H. Baac, S.-H. Song, E. Jang, S.-D. Lee, D. Park, and S. J. Kim,
Neural prosthesis in the wake of nanotechnology: controlled growth of neurons using surface nano structures,
Acta Neurochirurgica 99, 141 (2006). [non-SCI]
 E. Jang, H. Baac, Y.-T. Kim, and S.-D. Lee,
Electrically and Optically Controllable Liquid Crystal Grating with a Patterned Surface-Command Layer,
Mol. Cryst. Liq. Cryst. 293, 453 (2006).
 H. Baac, J.-H. Lee, J.-M. Seo, T. H. Park, H. Chung, S.-D. Lee, and S. J. Kim,
Submicron-Scale Topographical Control of Cell Growth using Holographic Surface Relief Grating,
Mat. Sci. Eng. C 24, 209 (2004).
 E.-T. Kim, S. J. Oh, H. Baac, and S. J. Kim,
Feasibility of Optoelectronic Neural Stimulation shown in Sciatic Nerve of Rats,
J. Biomed. Eng. Res. 25(6), 611 (2004). [domestic; non-SCI]
 H. Baac, J.-H. Park, J.-H Lee, S.-D. Lee, S. H. Kang, and D.-H. Choi,
Optical and Electro-Optical Control of Grating Efficiency in a Nematic Liquid Crystal Cell with Azo Polymer Boundary,
Mol. Cryst. Liq. Cryst. 371, 227 (2001).
 T.-Y. Yoon, H. Baac, and S.-D. Lee,
Optical Properties of a Chiral Liquid Crystal in a Generalized Coupled Mode Formalism,
Mol. Cryst. Liq. Cryst. 371, 203 (2001).
 H. Baac, J.-H. Park, J.-H. Lee, S.-D. Lee, S.H. Kang, and D.-H. Choi,
One Beam Controllable Grating in a Liquid Crystal Cell with an Azo Polymer Surface,
Mol. Cryst. Liq. Cryst. 368(5), 403 (2001).
US patent (as of Sep 2020)
 Seong-Gi Kim, Minah Suh, Chaejeong Heo, Hyoung Won Baac,
Partial skull replacements capable of monitoring in real time and delivering substances into brain tissue, and uses thereof,
US Patent 10639397B2 (2020).
 Lingie Jay Guo, Hyoung Won Baac,
Methods and devices for generating high-amplitude and high-frequency focused ultrasound with light-absorbing materials,
US Patent 9601103B2 (2017).