English Version
 
 

 

李柏璁 

        副教授

Office: 交映樓413

Phone: 31306

E-mail: potsung@mail.nctu.edu.tw
 

 

   Professor Po-Tsung Lee received the B.S. degree from the Physics Department, National Taiwan University in 1997. She earned the M.S. degree and Ph.D. degree both in Electrical Engineering -Electrophysics from University of Southern California, USA in 1998 and 2003, respectively. She is the recipient of the University of Southern California Women in Science and Engineering (WISE) award year 2000-2001. Only four graduate fellowships of USD$10,000 were awarded. She joined the Institute of Electro-Optical Engineering, National Chiao Tung University as an assistant professor in August, 2003 and as an associate professor since 2007.

  • Photonic crystal devices: including design, fabrication, and characterization of photonic crystal devices, especially photonic crystal defect lasers, and nanoscale device processing technologies.

  • Display devices and related processing technologies based on organic material.

  • Solar cells technologies

  • J. D. O'Brien, W. Kuang, Po-Tsung Lee, J. R. Cao, W. Kim, C.   Kim, “Photonic Crystal Lasers,” in Encyclopedia of Nanoscience and Nanotechnology edited by H. S. Nalwa, American Scientific Publishers, California (2004).

 

  • Tzu-Yueh Chang, Chun-Lung Chang, Hsin-Yu Lee, and Po-Tsung Lee, “A metal-insulator-semiconductor solar cell with high open-circuit voltage using a stacking structure,” IEEE Electron. Device Lett. (2010). (Accepted) (SCI IF: 2.605)

  • Tsan-Wen Lu, Pin-Tso Lin, Kuan-Un Sio, and Po-Tsung Lee, “Optical sensing of square lattice photonic crystal point-shifted nanocavity for protein adsorption detection,” Appl. Phys. Lett. 96, 213702 (2010). (SCI IF: 3.554) (Selected for Virtual Journal of Nanoscale Science & Technology, Vol. 21, issue 23, Jun. 7 (2010)) (Selected for Virtual Journal of Biological Physics Research, Vol. 19, issue 11, Jun. 1 (2010))

  • Tsan-Wen Lu, Yi-Hua Hsiao, Wei-De Ho, and Po-Tsung Lee, “High Index Sensitivity of Surface Mode in Photonic Crystal Hetero-Slab-Edge Microcavity,” Opt. Lett. 35, pp. 1452-1454 (2010). (SCI IF: 3.059)

  • Tzu-Yueh Chang, You-Wei Cheng, and Po-Tsung Lee, “Electrical characteristics of an organic bistable device using an Al/Alq3/nanostructured MoO3/Alq3/p+-Si structure,” Appl. Phys. Lett. 96, 043309 (2010). (SCI IF: 3.554)

  • Tsan-Wen Lu, Pin-Tso Lin, Kuan-Un Sio, and Po-Tsung Lee, “Square lattice photonic crystal point-shifted nanocavity with lowest-order whispering-gallery mode,” Opt. Express 18, pp. 2566-2572 (2010). (SCI IF: 3.278) (Cited: 1) (Selected for Virtual Journal of Biomedical Optics, Vol. 5, issue 4, Feb. 26, (2010))

  • Wei-De Ho, Tsan-Wen Lu, Yi-Hua Hsiao, and Po-Tsung Lee, "Thermal Properties of 12-Fold Quasi-Photonic Crystal Microcavity Laser with Size-Controlled Nano-Post for Electrical Driving," J. Lightwave Technol. 27, pp. 5302-5307 (2009). (SCI IF: 2.185) (Cited: 1)

  • Chia-Ho Chen, Tsan-Wen Lu, and Po-Tsung Lee, “Microcavity Laser Emissions Based on Double Hetero-Structure by Locally Modulated Photonic Crystal Waveguide,” J. Lightwave Technol. 27, pp. 4393-4400 (2009). (SCI IF: 2.185) (Cited: 1)

  • Ming-Feng Chang, Po-Tsung Lee, and Albert Chin, "Low Threshold Voltage MoN/HfAlO/SiON p-MOSFETs with 0.85-nm EOT," IEEE Electron. Device Lett. 27, pp. 4393-4400 (2009). (SCI IF: 2.605) (Cited: 2)

  • Tsan-Wen Lu, Yi-Hua Hsiao, Wei-De Ho, and Po-Tsung Lee, “Photonic crystal hetero-slab-edge microcavity with high quality factor surface mode for index sensing,” Appl. Phys. Lett. 94, 141110 (2009). (SCI IF: 3.554) (Cited: 4)

  • Albert Chin, Ming-Feng Chang, S. H. Lin, W. B. Chen, Po-Tsung Lee, F. S. Yeh, C. C. Liao, M. F. Li, N. C. Su and S. J. Wang, "Flat Band Voltage Control on Low Vt Metal-Gate/High-κ CMOSFETs with small EOT," Microelectron. Eng. 86, pp. 1728-1732 (2009). (SCI IF: 1.488)

  • Hsiao-Wen Zan, Cheng-Wei Chou, Chung-Hwa Wang, Ho-Tsung Song, Jenn-Chang Hwang, and Po-Tsung Lee, "Carbon Attachment on the Aluminum Nitride Gate Dielectric Pentacene Based Organic Thin Film Transistors," J. Appl. Phys. 105, 063718 (2009). (SCI IF: 2.072) (Cited: 1)

  • Tsan-Wen Lu and Po-Tsung Lee, “Ultra-high sensitivity optical stress sensor based on double-layered photonic crystal microcavity,” Opt. Express 17, pp. 1518-1526 (2009). (SCI IF: 3.278) (Cited: 3)

  • Ming-Feng Chang, Po-Tsung Lee, S. P. McAlister, and Albert Chin "Small Sub-threshold-Swing and Low-Voltage, Flexible Organic Thin Film Transistors which use HfLaO as the Gate Dielectric," IEEE Electron. Device Lett. 30, pp. 133-135 (2009). (SCI IF: 2.605) (Cited: 5)

  • Ming-Feng Chang, Po-Tsung Lee, S. P. McAlister, and Albert Chin "A Flexible Organic Pentacene Non-volatile Memory Based on High-k Dielectric Layers," Appl. Phys. Lett. 93, 233302 (2008). (SCI IF: 3.554) (Cited: 6)

  • Tsan-Wen Lu, Po-Tsung Lee, Chung-Chuan Tseng, and Yi-Yu Tsai, “Investigation of modal property and thermal behavior of high quality factor 12-fold quasi-photonic crystal microcavity with different central post sizes,” Opt. Express 16, pp. 12591-12598 (2008). (SCI IF: 3.278)  (Cited: 4)

  • Po-Tsung Lee, Tzu-Yueh Chang, and Szu-Yuan Chen, "Tuning of the Electrical Characteristics of Organic Bistable Devices by Varying the Deposition Rate of Alq3 Thin Film," Org. Electron. 9, pp. 916-920 (2008). (SCI IF: 3.262) (Cited: 7)

  • Ming-Feng Chang, Po-Tsung Lee, S. P. McAlister, and Albert Chin, "Low Sub-threshold Swing HfLaO/Pentacene Organic Thin Film Transistors," IEEE Electron Device Lett. 29, pp. 215-217 (2008). (SCI IF: 2.605) (Cited: 11)

  • Po-Tsung Lee, Tsan-Wen Lu, Chia-Min Yu, and Chung-Chuan Tseng, "Photonic crystal circular-shaped microcavity and its  uniform cavity-waveguide coupling property due to presentation of whispering gallery mode," Opt. Express 15, 9450 (2007). (SCI IF: 3.278) (Cited: 4)

  • John D. O’Brien, Wan Kuang, Jiang-Rong Cao, Min-Hsiung Shih, Po-Tsung Lee, M. Bagheri, Adam Mock, and W. K. Marshall, “Photonic crystal microcavity lasers,” J. Phys. D: Appl. Phys. 40, 2671-2682 (2007). (invited) (SCI IF: 3.262) (Cited: 2)

  • Po-Tsung Lee, Tsan-Wen Lu, Jyun-Hao Fan, and Feng-Mao Tsai, "High quality factor microcavity realized by circular photonic crystal with isotropic photonic bandgap effect," Appl. Phys. Lett. 90, 151125 (2007). (SCI IF: 3.554) (Cited: 17) (Selected for Virtual Journal of Nanoscale Science & Technology, Vol. 15, issue 17, Apr. 30, (2007))

  • Po-Tsung Lee, Tsan-Wen Lu, and Feng-Mao Tsai, "Octagonal Quasi-Photonic Crystal Single Defect Microcavity with Whispering Gallery Mode and Condensed Device Size," IEEE Photon. Technol. Lett. 19, 710 (2007). (SCI IF: 1.815) (Cited: 8)

  • Po-Tsung Lee, Tsan-Wen Lu, Feng-Mao Tsai, and Tien-Chang Lu, "Lasing action of octagonal quasi-periodic photonic crystal microcavities," Jpn. J. Appl. Phys. 46, 971 (2007). (SCI IF: 1.138)

  • Po-Tsung Lee, Tsan-Wen Lu, Feng-Mao Tsai, and Tien-Chang Lu, "Investigation of whispering gallery mode dependence on cavity geometry of quasiperiodic photonic crystal microcavity lasers," Appl. Phys. Lett. 89, 231111 (2006). (SCI IF: 3.554) (Cited: 10)

  • Po-Tsung Lee, Tsan-Wen Lu, Feng-Mao Tsai, Tien-Chang Lu, and Hao-Chung Kuo, "Whispering gallery mode of modified octagonal quasi-periodic photonic crystal single-defect microcavity and its side-mode reduction," Appl. Phys. Lett. 88, 201104 (2006). (SCI IF: 3.554) (Cited: 10)

  • Wan Kuang, Jiang-Rong Cao, Tian Yang, Sang-Jun Choi, Po-Tsung Lee, John D. OBrien, and P. Daniel Dapkus, “Classification of modes in suspended-membrane,19-missing-hole photonic-crystal micro-cavities,’’ J. Opt. Soc. Am. B, 22, 1092 (2005). (SCI IF: 2.087) (Cited: 7)

  • Jiang-Rong Cao, Wan Kuang, Sang-Jun Choi, Po-Tsung Lee, John D. O’Brien, and P. Daniel Dapkus, “Threshold dependence on the spectral alignment between the quantum-well gain peak and the cavity resonance in InGaAsP photonic crystal lasers,” Appl. Phys. Lett. 83, 4107 (2003). (SCI IF: 3.554) (Cited: 14)

  • John D. O’Brien, Po-Tsung Lee, Jiang-Rong Cao, Wan Kuang, Cheolwoo Kim, Woo-Jun Kim, Tian Yang, Sang-Jun Choi, P. Daniel Dapkus, "Photonic Crystal Lasers," Proc. of SPIE Vol. 4942, 194 (2003). (Invited).

  • Po-Tsung Lee, Jiang-Rong Cao, Sang-Jun Choi, Zhi-Jian Wei, John D. O’Brien, and P. Daniel Dapkus, “Operation of photonic crystal membrane lasers above room temperature,” Appl. Phys. Lett. 81, 3311 (2002). (SCI IF: 3.554) (Cited: 31) (Selected for Virtual Journal of Nanoscale Science & Technology, Vol. 6, issue 19, Nov. 4, (2002))

  • Jiang-Rong Cao, Po-Tsung Lee, Sang-Jun Choi, John D. O’Brien, and P. Daniel Dapkus, “Lithographic Fine-Tuning of Vertical Cavity Surface Emitting Laser-Pumped Two-Dimensional Photonic Crystal Lasers.” J. Nanoscience and  Nanotechnology 2, 313 (2002). (invited) (SCI IF: 1.435) (Cited: 3)

  • Po-Tsung Lee, Jiang-Rong Cao, Sang-Jun Choi, Zhi-Jian Wei, John D. O’Brien, and P. Daniel Dapkus, “Room-Temperature Operation of VCSEL-Pumped Photonic Crystal Lasers,” IEEE Photon. Technol. Lett. 14, 435 (2002). (SCI IF: 1.815) (Cited: 15)

  • Jiang-Rong Cao, Po-Tsung Lee, Sang-Jun Choi, R. Shafiiha, Seung-June Choi, John D. O’Brien, and P. Daniel Dapkus, “Nanofabrication of photonic crystal membrane lasers,” J. Vac. Sci. Technol. B 20, 618 (2002). (SCI IF: 1.460) (Cited: 21)

  • Oskar Painter, A. Husain, Axel Scherer, Po-Tsung Lee, I. Kim, John D. O'Brien, and P. Daniel Dapkus, "Lithographic tuning of a two-dimensional photonic crystal laser array," IEEE Photon. Technol. Lett. 12, 1126 (2000). (SCI IF: 1.815) (Cited: 49)

 

  • Pin-Tso Lin, Tsan-Wen Lu, and Po-Tsung Lee, “All-optical Controlled-transport Of Nanoparticles On Wedge-shaped Photonic Crystal Waveguides,” IWB4, OSA IPR’10, Monterey, California, USA (2010).

  • Tzu-Yueh Chang, Chun-Lung Chang, Hsin-Yu Lee, and Po-Tsung Lee, “Characteristics of MIS Solar Cells Using A Sputtering SiO2 Insulating Layer,” 302-I15, IEEE 35th PVSC, Honolulu, Hawaii, USA (2010).

  • Tsan-Wen Lu, Pin-Tso Lin, Kuan-Un Sio, and Po-Tsung Lee, “Square Lattice Photonic Crystal Point-Shifted D0 Nanocavity with Lowest-Order Whispering-Gallery Mode,” CWK5, IEEE/OSA CLEO/QELS’10, San Jose, California, USA (2010).

  • Yi-Heng Tsai, Yi-Shian Lin, Tzu-Yueh Chang, and Po-Tsung Lee, “Annealing Condition Dependent Room Temperature PL of Si Nano-crystals Thin Film,” T10.32, 2010 MRS Spring Meeting, San Francisco, California, USA (2010).

  • You-Wei Cheng, Tzu-Yueh Chang, and Po-Tsung Lee, “Characteristics of Organic Memory Using Metal Oxide Nano-clusters,” G17.3, 2010 MRS Spring Meeting, San Francisco, California, USA (2010).

  • Yi-Hua Hsiao, Tsan-Wen Lu, Wei-De Ho, and Po-Tsung Lee, “High-Q Photonic Crystal Hetero-Slab-Edge Microcavity Laser for Index Sensing,” IEEE/OSA CLEO/QELS’09, CTuDD4, Baltimore, Maryland, USA (2009).

  • Wei-De Ho, Yi-Hua Hsiao, Tsan-Wen Lu, and Po-Tsung Lee, “Thermal Properties of Post-Size Controlled 12-Fold Quasi-Photonic Crystal Microcavity for Electrically-Driving,” IEEE/OSA CLEO/QELS’09, CFE4, Baltimore, Maryland, USA (2009).

  • Wei-De Ho, Yi-Hua Hsiao, Tsan-Wen Lu, and Po-Tsung Lee, “Characterization of Post-Size Controlled 12-Fold Quasi-Photonic Crystal Microcavity for Electrically-Driven Structure,” Sat-S7-03, OPT’08, Taipei, Taiwan (2008). (Best Student Oral Paper Award)

  • Yi-Hua Hsiao, Wei-De Ho, Tsan-Wen Lu, and Po-Tsung Lee, “Two-Dimensional Photonic Crystal Slab-Edge Microcavity for Index-Sensing Applications with High Sensitivity,” Sat-S8-01, OPT’08, Taipei, Taiwan (2008).

  • Ching-Hua Hung, Yin-Hsin Lin, Po-Tsung Lee, Hui-Lung Kuo, and Yi-Ying Lai, "An Electrically Tunable Liquid Crystal-polymer Phase Grating Using a Nano-Imprinting Method," Fri-P1-136, OPT’08, Taipei, Taiwan (2008). (Best Student Post Paper Award)

  • Hsin-Yu Lee, Yi-Shian Max Lin, Kuang-Yang Kuo, Tzu-Yueh Chang, and Po-Tsung Lee, "Post-Annealing Temperature Effect on the Optical and Electrical Properties of the Nano-Structured Si/SiO2 Multilayer," Fri-P2-042, ISSCT’08, Taipei, Taiwan (2008). (Best Student Post Paper Award)

  • Hsiao-Wen Zan, Cheng-Wei Chou, Po-Tsung Lee, Ho-Tsung Song, and Jenn-Chang Hwang, "AlN Gate Dielectric Aging Effect in Pentacene Based OTFTs," Fri-P1-271, OPT'08, Taipei, Taiwan (2008).

  • Albert Chin, Ming-Feng Chang, C. C. Liao, N. C. Su, Po-Tsung Lee, and S. J. Wang, “Low Vt Metal-Gate/High-κ CMOS Using Laser-Irradiation Annealing and Reflection,” IEEE International Symp. on Advanced Gate Stack Technology (ISAGST), Austin, Texas, USA (2008). (Invited)

  • Ming-Feng Chang, Po-Tsung Lee and Albert Chin, “Low Voltage and Small Subthreshold Swing HfLaO/Pentacene Organic TFTs,” IEEE SSDM’08, pp. 1138-1139, Japan (2008).

  • Tsan-Wen Lu, Chung-Chuan Tseng, Yi-Yu Tsai, and Po-Tsung Lee, “Investigation on High Quality Factor 12-Fold Quasi-Photonic Crystal Microcavities with Different Central Post Sizes,” IMD4, OSA IPNRA'08, Boston, MA. USA (2008).

  • N. C. Su, C. H. Wu, Ming-Feng Chang, J. Z. Huang, S. J. Wang, W. C. Lee, Po-Tsung Lee, H. L. Kao and Albert Chin, “Gate-First Low Vt Al/TaN/Ir/HfLaO p-MOSFET Using Simple Laser Annealing,” IEEE 66th Device Research Conference (DRC), pp. 71-72, Santa Barbara, CA, USA (2008).

  • Tsan-Wen Lu, Chung-Chuan Tseng, Chia-Min Yu, and Po-Tsung Lee, “Photonic Crystal Circular-Shaped Microcavity Laser with High Quality Factor Whispering-Gallery Mode and Uniform Coupling Property,” F2A-4_68, IEEE WFOPC’07, Taipei, Taiwan (2007).

  • Tsan-Wen Lu, Jyun-Hao Fan, Feng-Mao Tsai, and Po-Tsung Lee, "High quality factor circular photonic crystal microcavity lasers," TuF4-5, CLEO-PR'07, Soeul, Korea (2007).

  • Po-Tsung Lee, Tzu-Yueh Chang, and Ssu-Yuan Chen, “Investigation of Electrical Pulse Erasing Method Effect on Current-Voltage Characteristics of Organic Bistable Device,” Thu-P6-04, IDMC’07, Taipei, Taiwan (2007).

  • Tzu-Yueh Chang, Ssu-Yuan Chen, and Po-Tsung Lee, “Investigation of Deposition Rate Effect on the Current-Voltage Characteristics of Organic Dynamic Random Access Bistable Devices,” p.19, SID’07, Long Bench, CA, USA (2007). (SID Travel Grant Award)

  • Ssu-Yuan Chen, Tzu-Yueh Chang, and Po-Tsung Lee, “Bistable Characteristics of the Organic Device with Heterojunction,” O3.11, MRS’07 Spring Meeting, San Francisco, CA, USA (2007).

  • Tsan-Wen Lu, Feng-Mao Tsai, Po-Tsung Lee, and Tien-Chang Lu, “Modified Octagonal Quasi-Periodic Photonic Crystal Single-Defect Micro-Cavity Lasers” JWB11, CLEO/QELS’06, Long Beach, CA, USA (2006).

  • Feng-Mao Tsai, Po-Tsung Lee, Tsan-Wen Lu, and Tien-Chang Lu, “Fabrication and Characteristics of Two-Dimensional Quasi-Periodic Photonic Crystal Lasers, CMKK6, CLEO/QELS’06, Long Beach, CA, USA (2006).

  • Po-Tsung Lee, Tsan-Wen Lu, Feng-Mao Tsai, and Tien-Chang Lu, “Lasing Action of Octagonal Quasi-Periodic Photonic Crystal Micro-Cavities” ThB13, IEEE/LEOS IPRM’06, Princeton, NJ, USA (2006).

  • Kuo-Hsi Yen, Hsiao-Wen Zan, Chieh-Ping Ko, Pu-Kuan Liu, Tzu-Yueh Chang, Kuo-Hui Su, Shih-Chiang Wei, Po-Tsung Lee, C. H. Chen, C. M. Yeh, and J. C. Hwang, “Organic thin-film transistors with AlN film as a gate-insulator by RF/ICP Sputtering,” EuroDisplay'05, Oral Presentation. (2005).

  • Tsan-Wen Lu and Po-Tsung Lee, "Thermal Characteristics of Two-Dimensional Photonic Crystal Lasers", IEEE WOCN'05, 1064, Dubai, UAE (2005).

  • Shih-Chiang Wei, Po-Tsung Lee, Hsiao-Wen Zan, Cheng-Chung Lee, Jia-Chu Ho, T.-H. Hu, "Thermal Behavior and Self-Heating Effect in Pentacene-Based Thin Film Transistors", IDMC 2005, Taiwan (2005).

  • Wo-Chung Kuo, Ya-Hsien Chang, Fang-I Lai, Po-Tsung Lee, Shing-Chung Wang, “High performance 1.27 mm InGaAs:Sb-GaAsP quantum wells vertical cavity surface emitting laser,” IEEE 19th International Semiconductor Laser Conference, pp. 97- 98 (2004).

  • Ya-Hsien Chang, Hao-Chung Kuo, Fang-I Lai, Yi-A Chang, Po-Tsung Lee, Shing-Chung Wang, “Fabrication of high speed single mode 1.27 mm InGaAs:Sb-GaAsP quantum wells vertical cavity surface emitting laser,” International Conference on Solid State Devices and Materials (SSDM), Tokyo, Japan (2004).

  • John D. O'Brien, Jiang-Rong Cao, Wan Kuang, Min-Hsiung Shih, Woo-Jun Kim, Cheolwoo Kim, Po-Tsung Lee, Sang-Jun Choi, P. Daniel Dapkus, “Photonic crystal devices,” Optics in Computing (Trends in Optics and Photonics Series Vol.90). Optical Soc. of America. 2003, pp.31-3. Washington, DC, USA (2003).

  • Tian Yang, Jiang-Rong Cao, Po-Tsung Lee, Min-Hsiung Shih, Roshanak Shafiiha, S. G. Farrell, John D. O’Brien, O. Shchekin, and D. G. Deppe, “Microdisks with quantum dot active regions lasing near 1300 nm at room temperature”, CWK3, Conference on Laser and Electro-Optics (CLEO), Baltimore, Maryland (2003).

  • Jiang-Rong Cao, Po-Tsung Lee, Sang-Jun Choi, John D. O’Brien, and P. Daniel Dapkus, “Threshold Pump Power Dependence on the Spectral Alignment Between the Gain Peak and the Cavity Resonance in InGaAsP Photonic Crystal Lasers”, MF57, Optical Fiber Communication Conference and Exhibit (OFC), Atlanta, Georgia (2003).

  • Po-Tsung Lee, Jiang-Rong Cao, Sang-Jun Choi, Tian Yang, John D. O’Brien, and P. Daniel Dapkus, “Investigation of the Optical Losses in Photonic Crystal Laser Cavities by Varying the Number of Lattice Periods”, ThB5, International Semiconductor Laser Conference, Garmisch-Partenkirchen, Germany (2002).

  • John D. O'Brien, Jiang-Rong Cao, Po-Tsung Lee, Tian Yang, Cheolwoo Kim, Woo-Jun Kim, Sang-Jun Choi, and P. Daniel Dapkus, “Photonic crystal lasers”, SPIE’s Photonics Fabrication Europe (2002), Proceedings of SPIE, vol. 4942 (invited)

  • Jiang-Rong Cao, Po-Tsung Lee, Sang-Jun Choi, John D. O’Brien, and P. Daniel Dapkus, “Lithographic Tuning of 2-D Photonic Crystal Lasers”, TuW4, Optical Fiber Communication Conference and Exhibit (OFC), Anaheim, California, (2002).

  • John D. O'Brien, Po-Tsung Lee, Jiang-Rong Cao, Cheolwoo Kim, Woo-Jun Kim, Sang-Jun Choi, and P. Daniel Dapkus, “VCSEL-pumped photonic crystal lasers”, Lasers and Electro-Optics, 2002. CLEO 2002 Technical Digest, p. 295 (2002). (invited)

  • Po-Tsung Lee, Jiang-Rong Cao, Sang-Jun Choi, Zhi-Jian Wei, John D. O’Brien, and P. Daniel Dapkus, “Room-temperature operation of VCSEL-pumped photonic crystal lasers”,14th Annual Meeting of the IEEE Lasers and Electro-Optics Society(LEOS), San Diego, California, vol. 2, pp. 651-652 (2001).


 

 Final Update:2009/05/14
 

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