Prof. Henry Du directs the Fiber Optics and Nanophotonics Laboratory. His research covers several frontier areas ranging from nanotechnology-enabled conventional optical fiber and photonic crystal fiber for multi-parameter sensing to plasmonic noble metal nanoparticles for field-enhanced applications. Examples of current activities include immobilization of nanoparticles using dip-pen nanolithography and molecular self-assembly to impart surface-enhanced Raman scattering functionality for fiber-optic sensing, laser inscription of long-period fiber gratings in photonic crystal fiber for immuno-sensing and resonance laser absorption spectroscopy, and guided assembly of plasmonic resonant gold nanoparticle constructs for enhanced generation of reactive species during photodynamic therapy of cancer. Prof. Du’s research has both basic and applied focus. Its interdisciplinary approach offers students training opportunities cutting cross materials science, optics, surface chemistry, and biomedical engineering often in partnership with faculty colleagues in related disciplines.
In addition to his involvement with conference planning, curriculum development and professional societies such as the American Ceramic Society, the Materials Research Society, and the International Society for Optical Engineering, Prof. Du has been awarded three U.S. patents. He has also been the recipient of the Dean’s Research Award, School of Engineering, Stevens (2004), the Jess Davis Memorial Award for Faculty Research Excellence, Stevens (2001), and the National Science Foundation Research Initiation Award (1991). |
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Melek Erol, Yun Han, Scott Stanley, Henry Du, and Svetlana Sukhishvilia. (2009). SERS not to be Taken for Granted in the Presence of Oxygen, Journal of American Chemical Society. 131 7480-748
Maung Kyaw Khaing Oo, Yun Han, Rainer Martini, Svetlana Sukhishvili, and Henry Du. (2009). Forward-Propagating Surface-Enhanced Raman Scattering and Intensity Distribution in Photonic Crystal Fiber with Immobilized Ag Nanoparticles, Applied Physics Letters. 7 (34), 968-970
Denis Pristinski, Eric C. Le Ru, Siliu Tan, Svetlana Sukhishvili, and Henry Du. (2008). Surface-Enhanced Raman Scattering at a Planar Dielectric Interface beyond Critical Angle, Optics Express. 16 (24), 20117-20125
M. K. Khaing Oo, X. Yang, H. Du and H. Wang. (2008). 5-aminolevulinic Acid Conjugated Gold Nanoparticles for Photodynamic Therapy of Cancer, Nanomedicine. 3 (6), 777-786
M. K. Khaing Oo, H. Wang and H. Du. (2008). Gold Nanoparticles in Photodynamic Therapy for Cancer: Photosensitiser conjugated gold nanoparticles for target delivery, Pharma Focus Asia. 8 31-34
Z. He, Y. Zhu, and H. Du. (2008). Long-period Gratings Inscribed in Air- and Water-filled Photonic Crystal Fiber for Refractometric Sensing of Aqueous Solution, Appl. Phys. Lett. 92 044105
Y. Han, M. Khaing Oo, Y. Zhu, S. Sukhishvili, L. Xiao, S. M. Demohan, W. Jin, and H. Du. (2008). Index-Guiding Liquid-Core Photonic Crystal Fiber for Solution Measurement Using Normal and Surface-Enhanced Raman Scattering, Optical Engineering, Optical Engineering. 47 (040502), 1-3
Y. Han, S. Sukhishvili, H. Du, J. Cefaloni, and B. Smolinski. (2008). Layer-by-Layer Self-Assembly of Oppositely Charged Ag Nanoparticles on Silica Spheres as Surface-Enhanced Raman Scattering Platform, J. Nanoscience and Nanotechnology. 8 1-10
S. Tan, M. Erol, S. Sukhishvili, and H. Du. (2008). "Substrates with Discretely Immobilized Silver Nanoparticles for Ultra-sensitive SERS Detection of Anions in Water, Langmuir. 24 4765-4771
Y. Zhu, R. T. Bise, J. Kanka, and P. Peterka, and H. Du. (2008). Fabrication and Characterization of Solid-Core Photonic Crystal Fiber with Steering-Wheel Air-Cladding for Strong Evanescent-Field Overlap, Optics Communications. 281 55-60
Y. Zhu, Z. He, and H. Du. (2008). Detection of external refractive index change with high sensitivity using long-period gratings in photonic crystal fiber, Sensors and Actuators B. 131 265-269
Y. Zhu, Z. He, J. Kaňka, and H. Du. (2008). Numerical Analysis of Refractive Index Sensitivity of Long-Period Gratings in Photonic Crystal Fiber, Sensors and Actuators B. 129 99-105
E. Udd, H. Du and A. Wang, Editors. (2009). Fiber Optic Sensors and Applications VI, Proc. SPIE, 7316
M. K. Khaing Oo, X. Yang, H. Wang and H. Du. (2008). 5-aminolevulinic Acid Conjugated Gold Nanoparticles for Cancer Treatment, Proceedings of NSTI Nanotech 2008. 2 12-15
S. Tan, M. Erol, S. Sukhishvili, and H. Du. Substrates with Discretely Immobilized Silver Nanoparticles for Ultra-sensitive SERS Detection of Anions in Water,” Langmuir (submitted)
D. Pristinski, S. Tan, S. Sukhishvili, and H. Du. “Surface-Enhanced Raman Scattering at Planar Dielectric Interface beyond Critical Angle,” Optics Letters (submitted)
Y. Zhu, Z. He, and H. Du. “Excitation of cladding modes in photonic crystal fibers for sensing applications,” Optics Letters (submitted)
Y. Han, M. Khaing Oo, Y. Zhu, H. Du, S. Sukhishvili, L. Xiao, S. M. Demohan, and W. Jin. “Index-Guiding Liquid-Core Photonic Crystal Fiber for Solution Measurement Using Normal and Surface-Enhanced Raman Scattering,” Optical Engineering (in press)
Y. Han, S. Sukhishvili, H. Du, J. Cefaloni, and B. Smolinski. “Layer-by-Layer Self-Assembly of Oppositely Charged Ag Nanoparticles on Silica Spheres as Surface-Enhanced Raman Scattering Platform,” J. Nanoscience and Nanotechnology (in press)
Y. Zhu, Z. He, and H. Du. “Detection of External Refraction Index Change with High Sensitivity and Thermal Stability Using Long-Period Gratings in Microstructured Optical Fibers,” Sensors and Actuators B (in press)
Y. Zhu, Z. He, J. Kaňka, and H. Du. “Numerical Analysis of Refractive Index Sensitivity of Long-Period Gratings in Photonic Crystal Fiber,” Sensors and Actuators B 129 99–105 (2008)
Y. Zhu, R. T. Bise, J. Kanka, and P. Peterka, and H. Du,. “Fabrication and Characterization of Solid-Core Photonic Crystal Fiber with Steering-Wheel Air-Cladding for Strong Evanescent-Field Overlap,” Optics Communications 281 55-60 (2008)
Z. He, Y. Zhu, and H. Du. “Long-period Gratings Inscribed in Air- and Water-filled Photonic Crystal Fiber for Refractometric Sensing of Aqueous Solution,” Appl. Phys. Lett. 92, 044105 (2008)
Y. Han, M. K. Oo, Y. Zhu, S. Sukhishvili, L. Xiao, M.S. Demohan, W. Jin, and H. Du,. “Liquid-Core Photonic Crystal Fiber Platform for Raman Scattering Measurements of Microliter Analyte Solutions,” in Photonic Crystals and Photonic Crystal Fibers for Sensing Applications III, H. Du and H. Fudouzi eds., Proc. SPIE Vol. 6767 67670G1-67670G8 (2007)
Z. He, Y. Zhu, J. Kaňka, and H. Du,. “Numerical Analysis and Experimental Investigation of Highly Sensitive Photonic Crystal Fiber Long-Period Grating Refractive Index Sensor,” in Photonic Crystals and Photonic Crystal Fibers for Sensing Applications III, H. Du and H. Fudouzi eds., Proc. SPIE Vol. 6767 67670E1-67670E8 (2007)
S. Tan, M. Erol, A. Attygalle, H. Du, and S. Sukhishvili. ”Synthesis of Positively Charged Silver Nanoparticles via Oxidative Photoreduction of AgNO3 and Branched Polyethyleneimine in HEPES Solutions,” Langmuir Langmuir 23, 9836-9843 (2007)
Z. He, Y. Zhu, and H. Du. “Effect of Macro-Bending on Resonance Wavelength and Intensity of Long-Period Gratings in Photonic Crystal Fiber,” Optics Express 15, 1804-1810 (2007)
Z. He, Y. Zhu, R. Bise and H. Du. “Long-Period Grating in Photonic Crystal Fiber for Sensing of External Refractive Index Change and Macro-Bending” in Photonic Crystals and Photonic Crystal Fibers for Sensing Applications II, H. Du and R. Bise eds., Proc. SPIE Vol. 6369, 636908-1 – 636908-9 (2006)
H. Du and R. Bise. Editors, Photonic Crystals and Photonic Crystal Fibers for Sensing Applications II, Proc. SPIE Vol. 6369, 2006
D. Pristinski and H. Du. ”Solid-Core Photonic Crystal Fiber as Raman Spectroscopy Platform with Silica Core as an Internal Reference,” Optics Letters, 31[22] 3246-3248 (2006)
M. Erol, H. Du, and S. Sukhishvili. “Control of Specific Attachment of Proteins by Adsorption of Polymer Layers,” Langmuir, 22, 11329-11336 (2006)
Y. Zhu, H. Du, and R. Bise. “Design of Solid-Core Microstructured Optical Fiber with Steering-Wheel Air Cladding for Optimal Evanescent-Field Sensing,” Optics Express, 14 [8] 3541-3546 (2006)
D. Pristinski, S. Tan, M. Erol, H. Du and S. Sukhishvili. “In Situ SERS Study of Rhodamine 6G Adsorbed on Individually Immobilized Ag Nanoparticles,” J. Raman Spectroscopy, 37 762-770 (2006)
M. Jordache and H. Du. “Oxidation Behavior of Silicon Nitride Sintered with Lu2O3 Additive,” J. Mater. Sci., 41 [21] 7040-7044 (2006)
H. Du. Editor, Photonic Crystals and Photonic Crystal Fibers for Sensing Applications, Proc. SPIE Vol. 6005 (2005)
S. Tan, D. Pristinski, S. Sukhishvili, and H. Du. “Surface-immobilized Polyampholytic Silver Nanoparticles for SERS Detection of Cations and Anions in Aqueous solutions” in Nanosensing: Materials and Devices II, M.S. Islam and A.K. Dutta, Editors, Proc. SPIE Vol. 6008, 1-8 (2005)
A. Raspopin, H.-L. Cui, and H. Du. “Calculation of Evanescent Field Interaction with Metallic Nanoparticles Immobilized on the Air Holes of Solid-Core Photonic Crystal Fiber” in Photonic Crystals and Photonic Crystal Fibers for Sensing Applications, H. Du ed., Proc. SPIE Vol. 6005, 93-102 (2005)
D.Y. Kim, H. Du, G.R. Kowach, C.A. White, and D.J. McGee. “Fabrication and Optical Measurements of Germanium-Doped Silica Ridge Waveguides Using a Novel Colloidal Suspension Approach,” Appl. Phys. Lett., 87 No. 121114 (2005)
S. Park, H. Li, B. Sheldon, and H. Du. “Fabrication of a Composite Structure of 3D Microporous Silica and Carbon Nanofilaments,” J. Mater. Res., 20 2498-2502 (2005)
S. Park, W. Ki, J. Yu, and H. Du. “Sol-Gel Synthesis of Highly Dispersed Cobalt Nanoparticles on Silica Thin Films, In-Situ Growth of Cobalt Nanoparticles on Sol-Gel Silica Films,” J. Mater. Res. 20 3094-3101 (2005)
R. Bise, S. Tan, D. Pristinski, S. Sukhishvili, H.-L. Cui, R. Martini, and H. Du. “Chemical and Biological Microstructured Fiber Sensors,”Proceedings of the 53rd IWCS/Focus Conference, p. 612 (2004)
D.Y. Kim, H. Du, S. Bhandarkar, G. Kowach, and D.W. Johnson. Jr., “Fabrication of SiO2 Planar Optical Waveguides using Colloidal Suspensions,” J. Non-Crystal. Solids 342 18-24 (2004)
D.Y. Kim, H. Du, D.W. Johnson, Jr. and S. Bhandarkar. “Optical-Quality Sol-Gel Silica Thick Layers on Silicon Using Tetramethylammonium Silicate,” J. Am. Ceram. Soc. 87 1789-1791 (2004)
J. Yu, H. Du, R. Shuba, and I.-W. Chen. “Dopant-Dependent Oxidation Behavior of α-SiAlON Ceramics,” J. Mater. Sci., 39 4855-4860 (2004)
E. Mirica, G. Kowach, P. Evans, and H. Du. “Morphological Evolution of ZnO Thin Films Deposited by Reactive Sputtering,” Crystal Growth & Design, 4 147-156 (2004)
E. Mirica, G. Kowach, and H. Du. “Modified Structure Zone Model to Describe the Morphological Evolution of ZnO Thin Films Deposited by Reactive Sputtering,” Crystal Growth & Design, 4 157-159 (2004)
J. Kaňka, Y. Zhu, Z. He, and H. Du. Design of Photonic Crystal Fiber Long-Period Grating Refractive Index Sensor, E. Udd, H. Du and A. Wang, Eds., Fiber Optic Sensors and Applications VI. 7316 73161D1- 73161D8
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