Research Papers

*Corresponding author

+Co-first authors


ACS Applied Materials & Interfaces 12, 55231 [Link]

Multi-stimuli-responsive optical hydrogel nanomembrane to construct planar color display boards for detecting local environmental changes 

By Muhammad Umar+, Dongwan Son+,Sara Arif, Myungwoong Kim*, and Sunghwan Kim*

Nano Energy 77, 105242 [Link]

Self-powered artificial skin made of engineered silk protein hydrogel 

By Narendar Gogurla, Biswajit Roy, and Sunghwan Kim*

Optical Materials Express 10, 818 (Editor's pick) [Link]

Inkjet-printed lasing silk text on reusable distributed feedback boards 

By Muhammad Umar+,Wenyi Li+, Giorgio Bonacchini+, Kyungtaek Min, Sara Arif, Fiorenzo G. Omenetto*, and Sunghwan Kim*

Advanced Materials Technologies 5, 1900936 [Link]

A skin-Inspired, interactive, and flexible optoelectronic device with hydrated melanin nanoparticles in a protein hydrogel-elastomer hybrid 

By Narendar Gogurla+,Biswajit Roy+, Kyungtaek Min, Ji-Yong Park, and Sunghwan Kim*



APL Photonics 4, 120901 (Perspective review article) [Link]

Advances in hydrogel photonics and their applications 

By Muhammad Umar, Kyungtaek Min*, and Sunghwan Kim*

Scientific Reports 9, 16266 [Link]

Random lasing and amplified spontaneous emission from silk inverse opals: Optical gain enhancement via protein scatterers

By Muhammad Umar+, Kyungtaek Min+, Sookyung Kim, and Sunghwan Kim*


Nano Energy 62, 674 [Link]

Skin-contact actuated single-electrode protein triboelectric nanogenerator and strain sensor for biomechanical energy harvesting and motion sensing

By Narendar Gogurla, Biswajit Roy, Ji-Yong Park, and Sunghwan Kim*

ACS Omega 4, 9010 [Link]

An interacting metal-insulator-metal resonator by nanoporous silver and silk protein membranes and its water sensing application

By Sara Arif, Muhammad Umar, and Sunghwan Kim*

Current Optics and Photonics 3, 40 [Link]

Tuning photoluminescence of biological light emitters via silk protein based resonators

By Sara Arif, Muhammad Umar, and Sunghwan Kim*





Optics Express 26, 33575 [Link]

Humidity sensing using THz metamaterials with silk protein fibroin

By Hwan Sik Kim, Sung Ho Cha, Biswajit Roy, Sunghwan Kim, and Yeong-Hwan Ahn*

Scientific Reports 8, 9598 [Link]

Silk protein nanofibers for highly efficient, eco-friendly, optically translucent, and multifunctional air filters

By Kyungtaek Min+, Sookyung Kim+, and Sunghwan Kim*

ACS Nano 12, 5637 [Link]

Protein-based electronic skin akin to biological tissues

By Minsik Jo+, Kyungtaek Min+, Biswajit Roy, Sookyoung Kim, Sangmin Lee, Ji-Yong Park, and Sunghwan Kim*


Optical Materials 80, 241 [Link]

Ultra-thin, conformal, and hydratable color-absorbers using silk protein hydrogel

By Muhammad Umar+, Kyungtaek Min+, Minsik Jo, and Sunghwan Kim*


Nano Letters 18, 1930 [Link]

High-contrast infrared absorption spectroscopy via mass-produced coaxial zero-mode resonators with sub-10-nm gaps

By Daehan Yoo, Daniel A. Mohr, Ferran Vidal-Codina, Aurelian John-Herpin, Minsik Jo, Sunghwan Kim, Joseph R Matson, Joshua D. Caldwell, Heonsu Jeon, Ngoc Cuong Nguyen, Luis Martín-Moreno, Jaime Peraire, Hatice Altug, and Sang-Hyun Oh*


Materials 11, 112 [Link]

The Investigation of the waveguiding properties of silk fibroin from the visible to near-infrared spectrum

By Vaclav Prajzler*, Kyungtaek Min, Sunghwan Kim, and Pavla Nekvindova*


Science Advances 4, e1602796 [Link]

Anderson localizations and photonic band-tail states observed in compositionally disordered platform

By Myungjae Lee, Jeongkug Lee, Sunghwan Kim, Ségolène Callard, Christian Sessal, and Heonsu Jeon*


Sensors & Actuators B: Chemical 255, 3207 [Link]

A physically transient and eco-friendly distributed feedback laser chemosensor for detecting acid vapor

By Muhammad Umar, Kyungtaek Min*, and Sunghwan Kim*





Applied Physics Letters 111, 231103 [Link]

Single transverse mode protein laser

By Itir Bakis Dogru+, Kyungtaek Min+, Muhammad Umar, Houman Bahmani Jalali, Deniz Conkar, Elif Nur Firat Karalar, Sunghwan Kim*, and Sedat Nizamoglu*


Scientific Reports 7, 5448 [Link]

Colored and fluorescent nanofibrous silk as a physically transient chemosensor and vitamin deliverer

By Kyungtaek Min+, Sookyoung Kim+, Chang Gun Kim, and Sunghwan Kim*


Proceedings of the National Academy of Sciences 114, 6185 [Link]

Deformable and conformal silk hydrogel inverse opal

By Kyungtaek Min+, Sookyoung Kim+, and Sunghwan Kim*


Annalen der Physik 529, 1700034 [Link]

Single-mode distributed feedback laser operation with no dependence on the morphology of the gain medium

By Muhammad Umar+, Kyungtaek Min+, Heonsu Jeon, and Sunghwan Kim*


Nanotechnology 28, 115201 [Link]

Silk protein as a new optically transparent adhesion layer for an ultra-smooth sub-10 nm gold layer

By Kyungtaek Min+, Muhammad Umar+, Shinyoung Ryu, Soonil Lee, and Sunghwan Kim*


RSC Advances 7, 574 [Link]

Biocompatible, optically transparent, patterned, and flexible electrodes and radio-frequency antennas prepared from silk protein and silver nanowire networks

By Kyungtaek Min+, Muhammad Umar+, Haekyo Seo, Jong Hyuk Yim, Dong Gun Kam, Heonsu Jeon, Soonil Lee, and Sunghwan Kim*





Advanced Optical Materials 4, 1738 [Link]

Physically transient distributed feedback laser using optically activated silk bio-ink 

By Hyunho Jung, Kyungtaek Min, Heonsu Jeon*, and Sunghwan Kim*


RSC Advances 6, 39330 [Link]

Eco-friendly photolithography using water-developable pure silk fibroin 

By Joonhan Park, Sung-Gyu Lee, Benedetto Marelli, Myungjae Lee, Taehyung Kim, Hye-Keun Oh, Heonsu Jeon, Fiorenzo G. Omenetto, and Sunghwan Kim*


Optical Materials Express 6, 993 [Link]

Natural silk protein as a new broadband nonlinear optical material 

By Byungjic Lee, Hyunsoo Kwon, Sunghwan Kim*, and Fabian Rotermund*





ACS Photonics 2, 1675 [Link] (Highlighted at Nature Photonics)

Chemically tunable, biocompatible, cost-effective metal-insulator-metal resonators using silk protein and ultrathin silver films

By Hyunsoo Kwon and Sunghwan Kim*


Advanced Materials 27, 6728 [Link]

Fabrication of tunable, high-refractive index titanate-silk nanocomposites on the micro- and nanoscale

By Giovanni Perotto, Michela Cittadini, Hu Tao, Sunghwan Kim, Miaomiao Yang, David L. Kaplan, Alessandro Martucci, and Fiorenzo G. Omenetto*


Optical Materials 47, 333 [Link]

A fully biocompatible poly(ethylene glycol)-gold plasmonic crystal for optical sensing

By Hyunsoo Kwon, Shinyoung Ryu, Soonil Lee, and Sunghwan Kim*


Nano Letters 15, 3358 [Link]

A highly tunable and fully biocompatible silk nanoplasmonic optical sensor

By Myungjae Lee, Heonsu Jeon, and Sunghwan Kim*


Lab on a Chip 15, 642 [Link]

A fully biocompatible single-mode distributed feedback laser

By Yunkyoung Choi, Heonsu Jeon, and Sunghwan Kim*


Nanoscale 7, 426 [Link]

Novel and simple route to fabricate fully biocompatible plasmonic mushroom arrays adheres on silk biopolymer

By Joonhan Park+, Yunkyoung Choi+, Myungjae Lee+, Heonsu Jeon, and Sunghwan Kim*





IEEE Photonics Technology Letters 26, 1259 [Link]

Nearly perfect absorption by bimetallic plasmonic crystal and its application as sensor

By Sunghwan Kim*


Nature Nanotechnology 9, 306 [Link

All-water-based electron beam lithography using silk as a positive, negative, and biofunctional resist

By Sunghwan Kim+, Benedetto Marelli+, Mark A. Brenckle, Alexander N. Mitropoulos, Eun-Seok Gil, Konstantinos Tsioris, Hu Tao, David L. Kaplan, and Fiorenzo G. Omenetto*


Advanced Materials 26, 1105 [Link]

Synthesis of silk fibroin micro- and submicron spheres using a co-flow capillary device

By Alexander N. Mitropoulos, Giovanni Perotto, Sunghwan Kim, Benedetto Marelli, David L. Kaplan, and Fiorenzo G. Omenetto*





New Physics: Sae Mulli 63, 851 [Link]

New silk road toward high technology

By Sunghwan Kim*


Physical Review A 88, 023804 [Link]

Simultaneous observation of extended and localized modes in celluar disordered photonic crystals

By Sunghwan Kim, Jeongkug Lee, Heonsu Jeon*, Segolene Callard, Christian Seassal, Kyung-Deok Song, and Hong-Gyu Park


Optics Express 21, 8897 [Link]

Silk protein based hybrid photonic-plasmonic crystal

By Sunghwan Kim, Alexander N. Mitropoulos, Joshua D. Spitzberg, David L. Kaplan, and Fiorenzo G. Omenetto*


Applied Physics Express 6, 042703 [Link]

Nano stepping-stone laser

By Sihan Kim, Sungmo Ahn, Kyungtaek Min, Sunghwan Kim, and Heonsu Jeon*


Advanced Materials 25, 2409 [Link]

Protein-protein nanoimprinting of silk fibroin films

By Mark A. Brenckle, Hu Tao, Sunghwan Kim, Mark Paquette, David L. Kaplan, and Fiorenzo G. Omenetto*



~ 2012


Nature Photonics 6, 818 (2012) [Link]

Silk inverse opals

By Sunghwan Kim, Alexander N. Mitropoupls, Joshua D. Spitzberg, Hu Tao, David L. Kaplan, and Fiorenzo G. Omenetto*


Applied Physics Letters 101, 091110 (2012)

Low threshold blue lasing from silk fibroin thin films

By Stefano Toffanin+, Sunghwan Kim+, Susanna Cavallini, Marco Natali, Valentina Benfesati, Jason J. Amsden, David L. Kaplan, Roberto Zamboni*, Michele Muccini*, and Fiorenzo G. Omenetto*


Applied Physics Express 4, 122101 (2011)

Operation of photonic crystal laser in continuous-wave mode for 18 hours

By Sihan Kim, Sunghwan Kim, Jeongkug Lee, Heonsu Jeon*, and Hyo Jin Kim


IEEE Photonics Technology Letters 23, 1454 (2011)

Free-standing GaN-based photonic crystal band-edge laser

By Dong-Uk Kim, Sunghwan Kim, Jeongkug Lee, Seong-Ran Jeon, and Heonsu Jeon*


Optics Express 19, 2105 (2011)

Milliwatt-level fiber-coupled laser power from photonic crystal band-edge laser

By Sunghwan Kim, Sungmo Ahn, Jeongkug Lee, and Heonsu Jeon*


Optics Express 19, 1 (2011)

Over 1 hour continuous-wave operation of photonic crystal lasers

By Sunghwan Kim, Jeongkug Lee, and Heonsu Jeon*


Optics Express 18, 7685 (2010)

Band-edge lasers based on randomly mixed photonic crystals

By Sunghwan Kim, Sungjoon Yoon, Hyojun Seok, Jeongkug Lee, and Heonsu Jeon*


Journal of the Optical Society of America B 26, 1330 (2009)

High power and large alignment tolerance fiber coupling of honeycomb-lattice photonic crystal Γ-point band-edge laser

By Sunghwan Kim, Yeonsang Park, Kyungwook Hwang, Jeongkug Lee, Heonsu Jeon*, and Hyo Jin Kim


Applied Physics Letters 94, 133503 (2009)

Fiber-coupled surface-emitting photonic crystal band edge laser for biochemical sensor applications

By Sunghwan Kim, Jeongkug Lee, Heonsu Jeon*, and Hyo Jin Kim


IEEE Transactions on Electron Devices 55, 523 (2008)

GaN light-emitting diode with deep-angled mesa sidewalls for enhanced light emission in the surface-normal direction

By Jae-Soong Lee, Joonhee Lee, Sunghwan Kim, and Heonsu Jeon*


Physica Status Solidi C 4, 2625 (2007)

Fabrication of reflective GaN mesa sidewalls for the application to high extraction efficiency LEDs

By Jae-Soong Lee, Joonhee Lee, Sunghwan Kim, and Heonsu Jeon*


Applied Physics Letters 90, 171115 (2007)

Butt-end fiber coupling to a surface-emitting Γ-point photonic crystal band edge laser

By Yeonsang Park, Sunghwan Kim, Chaeyoung Moon, Heonsu Jeon*, and Hyo Jin Kim


Sensors and Actuators B: Chemical 124, 147 (2007)

Fluorescence amplification using colloidal photonic crystal platform in sensing dye-labeled deoxyribonucleic acids

By Hee Jin Kim, Sunghwan Kim, Heonsu Jeon*, Jangseok Ma, Soo Hyung Choi, Soosuk Lee, Christopher Ko, and Wounjhang Park


IEEE Photonics Technology Letters 18, 1588 (2006)

GaN-based light-emitting diode structure with monolithically integrated sidewall deflectors for enhanced surface emission

By Jae-Soong Lee, Joonhee Lee, Sunghwan Kim, and Heonsu Jeon*


Applied Physics Letters 83, 231 (2003)

Photonic crystal waveguides with multiple 90 degrees bends

By Young-Geun Roh, Sungjoon Yoon, Sunghwan Kim, Heonsu Jeon*, Seung-Ho Park, Q-Han Park, and Inkyu Park

Department of Physics

Department of Energy Systems Research

Ajou University, Republic of Korea

© 2015 by Sunghwan Kim

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