2010 RCAS advisory review Mechanics & Engineering Science Advanced Computation & Modeling Optoelectronics Nano-biotechnology PK Wei, CY Kuo, KK Liang, JH Lin, CW Pao (Norden E. Huang, CC Chang, FG Tseng) J Tang, YJ Cheng, SY Lin, CW Chu, MH Shih, SH Chang LJ Li (DP Tsai, CK Sun, MH Hong, YJ Lai, JI Chyi) YC Chang, CC Kaun, TH Hsieh, AM vd Brink, V. Nazarov, SW Chang (YL Chen) PL Chen, CH Lee, JY Cheng, JJ Shyue, YC Tung (CF Chou, GH Lin) Yia-Chung Chang
Advanced Computation& Modeling 張亞中 (Yia- Chung Chang) – Nanostructure electronics & photonics 馬尚德 (Alec Maassen van den Brink)– Quantum computing 關肇正 (Chao-Cheng Kaun)– Ab initio transport 謝東翰 (Tung-Han Hsieh) – Web computing Vladimir Nazarov-CDFT New Hire: Shu-Wei Chang -Nanophotonics
Thematic Center for Optoelectronics Jau Tang ( 湯朝暉 ) Chih-Wei Chu ( 朱治偉 ) Shih-Yen Lin ( 林時彥 ) Yuh-Jen Cheng ( 程育人 ) Ming-Hsiung Shih ( 施閔雄 ) Shih-Hsin Chang ( 張仕欣 ) Lain-Jong Li ( 李連忠 )
Thematic Center for Mechanics and Engineering Science Chih-Yu Kuo ( 郭志禹 ) Kuo-Kang Liang ( 梁國淦 ) Jung-Hsin Lin ( 林榮信 ) Chun-Wei Pao ( 包淳偉 ) Pei-Kuen Wei ( 魏培坤 )
Significant events Personnel: Dr. Chih-Wei Chu ( 朱治偉 ) has been promoted to associate research fellow, effective January 8, 2010. Dr. Pei-lin Chen ( 陳培菱 ) has been promoted to research fellow, effective March 10, 2010. Dr. Chao-Hwang Lee ( 李超煌 ) has been promoted to research fellow, effective May, 2010. Dr. Chun-Wei Pao( 包淳偉 ) was appointed as assistant research fellow, starting November 1, 2009. Dr. Lain-Jong Li ( 李連忠 ) was appointed as associate research fellow, starting Februay 1, 2010. Dr. Vladmir Nazarov was appointed as associate research fellow, starting on July 1, 2010. Dr. Shuwei Chang ( 張書維 ) (Ph.D, University of Illinois, Urbana- Champaign) is expected to report to work as assistant research fellow in September, 2010. Dr. Pei-lin Chen ( 陳培菱 ) was appointed as the associate director for general affairs, starting June 15, 2010 Three candidates (V. Podzorov, Chao-Min Cheng, and E. Il'ichev) were interviewed, and two female candidates have been scheduled to have an interview in August. Decision will be made after August to select one or two candidates.
Outreach & Activities –RCAS organized a RCAS Taiwan-Japan Workshop on Single Molecule/Confocal Microscopy during on Oct. 15, 2009. A delegation from National Institute of Advanced Industrial Science and Technology (AIST), Japan was invited to attend the workshop. –RCAS co-sponsored the 6th ACUP (Asian Conference on Ultrafas Phenomena) held at NTU during Jan. 10-13, 2010. –RCAS invited Dr. Monique Combescot (Director of 1st Class, CNRS, Paris) to give a lecture series on “Many-body theory of Exciton Condensation” in Academia Sinica during January 11-22, 2010. –The second annual RCAS workshop has been held on Feb. 10 and 11, 2010. In the workshop, Total attendance was around 200. –RCAS and NCTU arranged a NCTU-RCAS Optoelectronics Workshop on March 5, 2010 to exchange research experience and discuss future collaborations. RCAS Optoelectronics group held an open house for all NCTU students during the afternoon of that day. A follow-up collaboration proposal wasestablished. –RCAS will co-organized the 2010 Cross-Strait Workshop on Engineering Mechanics ( 海峽兩岸工程力學研討會 ) in May, 2010. The main organizer is Institute of Applied Mechanics, National Taiwan University. –RCAS Invited Nobel laureate, Prof. Ahmed Zewail to visit AS during June 28&29,2010 and give a lecture. –RCAS established the ANNA(Asian Nanoscience & Nanotechnology Association) – Taiwan Chapter (Jau Tang and L. J. Li served as Chair & Executive Officer) Prof. Ahmed Zewail will serve as the honorary President of ANNA.
Space Current situation ： Nanobio group: 2F of IoP (~1000 m 2 ) B2F(~400 m 2 ) Headquater & ACM group: 11F(~400 m 2 ) + 3 offices (~70 m 2 ) on 10F, Humanity & Social Science Building 4 offices in Institute of Ethnics (~100 m 2 ) Mechanics group: 17 offices (~500 m 2 ) in Institute of History and Linguistics Optoelectronics group : 5F, Tien-Chia-Ping building and 5F, Microelectronics and Information System Research Center, NCTU (~1600 m 2 )
Building plans RCAS expects to have two branches: Taipei Branch- biotechnology related research The administration staff, nano-bio group, mechanics group, and part of the advanced computation group will be located in the“Coordinated Science and Technology Building”on the Sinica campus. (estimated area= 1500 pings = 5000m 2 ) Hsin-chu Branch- semiconductor related research It is proposed that the optoelectronics/advanced materials group and part of the advanced computation group will be located in a new building on the NCTU campus. Currently, there are two options for the building site: 1.Between the Tien-Chia-Ping building and the 4 th Engineering Building( 工四館 ) (estimated area= 1100 pings = 3600m 2 ) 2.Near the south gate of NCTU,next to NSRRC, NTHU, and Industrial Park. (estimated area= 1500 pings = 5000m 2 )
Achievements since 2004 Since 2004, RCAS has published more than 470 SCI papers. (>200 SCI papers since 2009) Total impact factor > 600 Total number of citations > 1673 Number of patents filed in Taiwan >16 Number of patents filed in U.S.A. >18.
Nanobiotechnology (biophotonics) Mission: To develop novel optical and electro-optic technologies for investigating the interactions between nanomaterials and biological systems, or biological phenomena on the nanoscale.
Long-term plan: 1. Biomedical micro/nanofluidic devices Development of high throughput screening systems Integrated systems for cancer prognosis and diagnosis Development of 3D cell culture systems 2. Nanomaterials for biological Novel nanostructures and nanoparticles for bio-sensing Synthesis and modification of nanopartilces for drug delivery Studies of cellular interaction at nanoscale 3. Advanced bioimaging and biosensing Super-resolution microscopy 3D cellular imaging using electron microscopy Multi-dimensional imaging techniques Nonblinking and less toxic fluorescence markers for medical imaging
Observed that the cell adhesion and transfection efficiency were both enhanced on the patterned superhydrophobic surfaces. (PL Chen) [ Lab Chip 556 (2010)] Observation of active membrane waves on living cells and comparions between the measured data and a theoretical model. (CH Lee) [PRL103, 238101 (2009)] Verification of the cancer-cell filopodial response to the concentration gradients of epidermal growth factor in a microfluidic chip. (JY Cheng, CH Lee) [Lab on a Chip 9, 884 (2009).] Study on the correlation between cancer cell metastais and electrotaxis. (JY Cheng) [Biosensors and Bioelectronics, 24, 3510 (2009)] Imaging of 3D nanostructure inside organic electronic devices by combining scanning probe microscopy and cluster ion slicing. (JJ Shyue) [ACS Nano 4, 2547 (2010)] 3D Nanoscale Imaging of Polymer Bulk-Heterojunction Materials by Scanning Electrical Potential Microscopy and C60+ Cluster Ion Slicing. [Analytical Chemistry 81 8936 (2009)] Development of a 384 hanging drop array for high-throughput 3D cell spheroid culture and drug testing. (YC Tung) [Biomaterials, 30, 3020 (2009)] Research Highlights
Thematic Center for Optoelectronics Mission: To elucidate important physical processes and develop nano-scale or submicron optoelectronic devices for energy, environment and health applications. Optoelectronics Energy Environment Health
Long-term plan: 1. Flexible optoelectronics multi-layer organic electronics, high conductive polymer for transparent electrodes carbon nanotube- and graphene-based nanoelectronics flexible micro- & nano- laser/LED sources 2. Nanostructured optoelectronics epitaxially grown fullerene and organic nano/micro electronics organic dyes for solar cells devices self-assembled QDs and nanoparticle devices nano-heaters for photoacoustic source nanoplasmonic devices & photonic integrated circuits GaN based nano-structured UV-blue LED and lasers photonic crystal nano-lasers & microcavity QED effects 3. Advanced materials for energy related applications epitaxially grown graphene, organic nano and microrods, conjugated oligomoner synthesis organic dye for solar cells devices wide-bandgap semiconductor epitaxial growth metamaterials and its applications
Developed several schemes to suppress blinking for high performance nonblinking QD single-photon sources. [J. Tang, ACS Nano 3, 3051 (2009)] We have combined confocal optical microscopy with a fluorescence module to study the opticophysical properties within bulk heterojunction films for organic solar cells. This powerful technique allows the direct and simple study of the relationship between the fabrication conditions and the vertical film morphology. [Anal. Chem. 82, 1669, J. Phys. Chem. C, 114, 9062 (2010)] Developedcompact flexible photonic crystal and microdisk lasers on PDMS substrate. These low threshold lasers not only work as efficient light sources, but also function as sensing devices. [MH Shih, Optics Express 17, 991-996 (2009);Optics Letters 34, 2733 (2009)] Demonstrated applications of light-emitting diodes, detectors and memories for type-II GaSb/GaAs quantum dots (with optimized growth conditions [SY Lin, Appl. Phys. Lett. 96, 123503 (2010)] Demonstrated a defect selective passivation epitaxial growth for high quality GaN substrate and 50% efficiency improvement in lighting LED applications. [YJ Cheng, Appl. Phys. Lett., 95, 211103 (2009)] Research Highlights
Biophysics System technology Analysis method Medical imaging (Ultrasound, Optics) Biomechanics of Tissues and Blood Flow Diagnosis and Clinical Application Blood Vessel/Soft Tissue Characterization Collaborators: NTU Hospital ( 臺大醫院 ), Mackay Hospital ( 馬偕醫院 ), NTU ( 台灣大學 ), NCU ( 中央大學 ) NTHU ( 清華大學 ), USC ( 南加州大學 ),….etc. Mission: Biomechanics studies & medical imaging via mechanical tools
Long-term plans 1. Dynamic Studies of Biomolecular Interactions : Modeling: Development of enhanced sampling techniques for prediction and refinement of protein or biomolecule structures, with the applications in pharmaceutical sciences Experiment: Biomechanics studies via bio-AFM, FRET/Spectroscopy, IR, and fluorescence lifetime experiments. 2. Mechanics of Mesoscale Structures Homogenization, renormalization and multi-grid method will be developed to predict the global thermal/mechanical and behaviors of subwavelength (acoustic, plasmonic) structures. Fabrication and applications of phononic crystals, metamaterials and plasmonic devices. 3. Environment Related Mechanics The main theme is to establish a series of kinetic models for debris/granular flows based on the continuum mechanics. Theoretical/numerical predictions with erosion/deposition mechanisms based on Hui’s unified coordinate method will be checked or confirmed by relevant experiments in the lab and measurements in the field.
A giant birefringence was investigated in plasmonic nanoslit arrays due to the different propagation properties of TE and TM waves. The magnitude of birefringence is as high as 2.7 which is much larger than other birefringent materials. (PK Wei) [Appl. Phys. Lett. 95, 013105 (2009)]. It was reported by “Laser Focus World” in TECHNOLOGY REVIEW 2009: Accelerated ingenuityTECHNOLOGY REVIEW 2009: Accelerated ingenuity (CY Kuo) successfully resolved the geological catastrophe of the Morakot typhoon into the processes of the landslide which buried the Shiaoling village. (CW Pao) Running massive parallel-replica dynamics simulation of Ag nanowire stretching on Roadrunner with extremely slow strain compared with experiments (July 2009 - September 2009): R eached 1ms simulation time scale with atomistic resolution. Research Highlights
Advanced Computation & Modeling Nanoscale optoelectronics modeling Quantum information & Computing Nanometrology software development
Long-term plan: 1. Computational study of nanostructures and modeling of nanoscale devices Aiming at putting together a complete package from ab initio to realistic scale for modeling of nanoscale devices 2. Quantum information and spintronics Superconducting qubits, quantum measurement, andspintronics devices. For more practical applications (e.g. quantum cryptography), entangled photons may also be considered. 3. Software development for optical metrology & plasmonics Development of optical metrology for isolated features, including biological structures on the nanoscale.
Research Highlights Surface plasmon resonance ellipsometry based sensor for studying biomolecular interaction [Y. C. Chang, PK Wei, Biosensors and Bioelectronics 25, 2633-38 (2010)] Optical metrology of randomly-distributed Au colloids on a multilayer film [Optics Exp. 18, 1310-15 (2010)] Obtained an exact solution for the exchange-correlation (xc) kernel of a periodic system to the second-order in the periodic potential [V. Nazarov, YC Chang, Phys. Rev. Lett. 102, 113001 (2009)] Open a way for interpolation between low- and high frequency behavior of the xc kernel of an arbitrary system by expressing it in the high-frequency limit through a few ground-state properties [V. Nazarov, PRB 81, 245101 (2010)] Demonstrated that the high-/low-conductance traces observed in the alkanediisothiocyanate [-SCN-(CH2)n-NCS-, n=4, 6, 8] single-molecule junctions can be related to the difference in the electronic structures between the molecular contacts with different interface configurations of the Au electrodes [CC Kaun, PR B 81, 035424 (2010)] Using extensive numerical analysis, we have gained a thorough understanding of quantum tunneling in the Duffing model for qubit readout. For detector applications, these tunneling events are an error processes which should be quantified. In the nontrivial classical limit, some analytical understanding is also possible.[vdB, in preparation]