Wen,Yu-Chieh / Assistant Research Fellow

Research Interest

• Surface physical chemistry, Ultrafast spectroscopy for quantum materials, Nonlinear optics, Laser spectroscopy

Experience

• Postdoc, Dept. of Physics, University of California, Berkeley
• Postdoc, Dept. of Physics, Fudan University, China
• Postdoc, Inst. of Physics, Academia Sinica

Publication

Journal Papers

• [1]     L. Dalstein, J.-R. Huang, and Y.-C. Wen*, 2020, “Wavelength-Scanning Second Harmonic Generation for Determining Absolute Charge Density at Aqueous Interfaces”, OPTICS LETTERS, 45(13), 3733. (SCI) (IF: 3.589; SCI ranking: 14.9%)
  
  
• [2]     K.-Y. Chiang, L. Dalstein, and Y.-C. Wen*, 2020, “Affinity of Hydrated Protons at Intrinsic Water/Vapor Interface Revealed by Ion-Induced Water Alignment”, JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 11, 696. (SCI) (IF: 8.709; SCI ranking: 8.8%,8.1%,14.3%,14.1%)
  
  
• [3]     L. Dalstein, K.-Y. Chiang, and Y.-C. Wen*, 2019, “Direct Quantification of Water Surface Charge by Phase-Sensitive Second Harmonic Spectroscopy”, JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 10, 5200−5205. (SCI) (IF: 8.709; SCI ranking: 8.8%,8.1%,14.3%,14.1%)
  
  
• [4]     X. Liu, G. Huang, K.-K. Hu, N. Sheng, C. Tian, Y. R. Shen, Y.-C. Wen, G. Shi*, and H. Fang, 2018, “Sharing of Na+ by Three -COO- Groups at Deprotonated Carboxyl-Terminated Self-Assembled Monolayers Charged Aqueous Interface”, JOURNAL OF PHYSICAL CHEMISTRY C, 122, 9111. (SCI) (IF: 4.536; SCI ranking: 15.6%,21.2%,28.7%)
  
  
• [5]     Y.-C. Wen, S. Zha, C. Tian*, and Y. R. Shen*, 2016, “Surface pH and Ion Affinity at the Alcohol-Monolayer/Water Interface Studied by Sum-Frequency Spectroscopy”, Journal of Physical Chemistry C, 120, 15224. (SCI) (IF: 4.536; SCI ranking: 15.6%,21.2%,28.7%)
  
  
• [6]     K.-H. Lin*, K.-J. Wang, C.-C. Chang, Y.-C. Wen, B. Lv, C.-W. Chu, and M.-K. Wu*, 2016, “Ultrafast Dynamics of Quasiparticles and Coherent Acoustic Phonons in Slightly Underdoped (BaK)Fe2As2”, Scientific Reports, 6, 25962. (SCI) (IF: 4.259; SCI ranking: 15.6%)
  
  
• [7]     Y.-C. Wen, S. Zha, X. Liu, S. Yang, P. Guo, G. Shi, H. Fang, Y. R. Shen*, and C. Tian*, 2016, “Unveiling Microscopic Structures of Charged Water Interfaces by Surface-Specific Vibrational Spectroscopy”, PHYSICAL REVIEW LETTERS, 116, 016101. (SCI) (IF: 8.462; SCI ranking: 7.6%)
  
  
• [8]     M.-K. Wu*, P. Wu, Y.-C. Wen, M.-J. Wang, P.-H. Lin, W.-C. Lee, T.-K. Chen, and C.-C. Chang, 2015, “An Overview of the Fe-Chalcogenide Superconductors”, JOURNAL OF PHYSICS D-APPLIED PHYSICS, 48, 323001. (SCI) (IF: 2.588; SCI ranking: 29.7%)
  
  
• [9]     C.-C. Chang, T.-K. Chen, W.-C. Lee, P.-H. Lin, M.-J. Wang, Y.-C. Wen, P.-M. Wu, and M.-K. Wu*, 2015, “Superconductivity in Fe-chalcogenides”, PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 514, 423. (SCI) (IF: 1.404; SCI ranking: 66.2%)
  
  
• [10]     K.-H. Lin*, K.-J. Wang, C.-C. Chang, Y.-C. Wen, D.-H. Tsai, Y.-R. Wu, Y.-T. Hsieh, M.-J. Wang, B. Lv, P. C.-W. Chu, and M.-K. Wu*, 2014, “Observation of Pseudogaplike Feature above Tc in LiFeAs by Ultrafast Optical Spectroscopy”, PHYSICAL REVIEW B, 90, 174502. (SCI) (IF: 3.836; SCI ranking: 26.9%)
  
  
• [11]     P.-A. Mante, C.-C. Chen, Y.-C. Wen, H.-Y. Chen, S.-C. Yang, Y.-R. Huang, I.-J. Chen, Y.-W. Chen, V. Gusev, M.-J. Chen, J.-L. Kuo, J.-K. Sheu, and C.-K. Sun*, 2014, “Probing Hydrophilic Interface of Solid/Liquid-Water by Nanoultrasonics”, Scientific Reports, 4, 6249. (SCI) (IF: 4.259; SCI ranking: 15.6%)
  
  
• [12]     P.-A. Mante, C.-C. Chen, Y.-C. Wen, J.-K. Sheu, and C.-K. Sun*, 2013, “Thermal Boundary Resistance between GaN and Cubic Ice and THz Acoustic Attenuation Spectrum of Cubic Ice from Complex Acoustic Impedance Measurements”, PHYSICAL REVIEW LETTERS, 111, 225901. (SCI) (IF: 8.462; SCI ranking: 7.6%)
  
  
• [13]     C.-W. Luo*, I.-H. Wu, P.-C. Cheng, J.-Y. Lin, K.-H. Wu, T.-M. Uen, J.-Y. Juang, T. Kobayashi, Y.-C. Wen, T.-W Huang, K.-W. Yeh, M.-K. Wu., D. A. Chareev, O. S. Volkova, and A. N. Vasiliev, 2012, “Ultrafast Dynamics and Phonon Softening in Fe1+ySe1−xTex Single Crystals”, NEW JOURNAL OF PHYSICS, 14, 103053. (SCI) (IF: 3.786; SCI ranking: 12.7%)
  
  
• [14]     P.-A. Mante, H.-Y. Chen, M.-H. Lin, Y.-C. Wen, S. Gwo, and C.-K. Sun*, 2012, “Selectively Probing Vibrations in A Plasmonic Supracrystal”, APPLIED PHYSICS LETTERS, 101, 101903. (SCI) (IF: 3.411; SCI ranking: 19.6%)
  
  
• [15]     Y.-C. Wen, K.-J. Wang, H.-H. Chang, J.-Y. Luo, C.-C. Shen, H.-L. Liu, C.-K. Sun, M.-J. Wang, and M.-K. Wu*, 2012, “Gap Opening and Orbital Modification of Superconducting FeSe above the Structural Distortion”, PHYSICAL REVIEW LETTERS, 108, 267002. (SCI) (IF: 8.462; SCI ranking: 7.6%)
  
  
• [16]     A. Devos*, Y.-C. Wen, P.-A. Mante, and C.-K. Sun, 2012, “Comment to “Obsercation of Anomalous Acoustic Phonon Dispersion in SrTiO3 by Broadband Stimulated Brillouin Scattering”, APPLIED PHYSICS LETTERS, 100, 206101. (SCI) (IF: 3.411; SCI ranking: 19.6%)
  
  
• [17]     Y.-C. Wen, G.-W. Chern, K.-H. Lin, J. J. Yeh, and C.-K. Sun*, 2011, “Femtosecond Optical Excitation of Coherent Acoustic Phonons in a Piezoelectric p-n Junction”, PHYSICAL REVIEW B, 84, 205315. (SCI) (IF: 3.836; SCI ranking: 26.9%)
  
  
• [18]     Y.-C. Wen, Y.-C. Liao, H.-H. Chang, B.-H. Mok, T.-W. Huang, K.-W. Yeh, J.-Y. Luo, M.-J. Wang, C.-K. Sun, and M.-K. Wu*, 2011, “Elastic Stiffness of Single-Crystalline FeSe Measured by Picosecond Ultrasonics”, JOURNAL OF APPLIED PHYSICS, 110, 073505. (SCI) (IF: 2.068; SCI ranking: 39.9%)
  
  
• [19]     Y.-C. Wen, S.-H. Guol, H.-P. Chen, J.-K. Sheu, and C.-K. Sun*, 2011, “Femtosecond Ultrasonic Spectroscopy Using A Piezoelectric Nanolayer: Hypersound Attenuation in Vitreous Silica Films”, APPLIED PHYSICS LETTERS, 99, 051913. (SCI) (IF: 3.411; SCI ranking: 19.6%)
  
  
• [20]     Y.-E. Su, Y.-C. Wen, Y.-L. Hong, H.-M. Lee, S. Gwo, Y.-T. Lin, L.-W. Tu, H.-L. Liu, and C.-K. Sun*, 2011, “Using Hole Screening Effet on Hole-Phonon Interaction to Estimate Hole Density in Mg-doped InN”, APPLIED PHYSICS LETTERS, 98, 252106. (SCI) (IF: 3.411; SCI ranking: 19.6%)
  
  
• [21]     Y.-H. Chen, Y.-C. Wen, W.-R. Liu, W.-F. Hsieh, and C.-K. Sun*, 2011, “Acoustic Velocity and Optical Index Birefringence in A-Plane ZnO Thin Films”, CHINESE JOURNAL OF PHYSICS, 49, 201. (SCI) (IF: 0.514; SCI ranking: 84.8%)
  
  
• [22]     Y.-C. Wen, J.-H. Sun, T.-T. Wu, C. Dais, D. Grützmacher, and C.-K. Sun*, 2011, “Investigations of Phononic Bandgap in A 3D Quantum-Dot Crystal”, CHINESE JOURNAL OF PHYSICS, 49, 77. (SCI) (IF: 0.514; SCI ranking: 84.8%)
  
  
• [23]     H.-P. Chen, Y.-C. Wen, Y.-H. Chen, C.-H. Tsai, K.-L. Lee, P.-K. Wei, J.-K. Sheu, and C.-K. Sun*, 2010, “Femtosecond Laser-Ultrasonic Investigation of Plasmonic Fields on The Metal/Gallium Nitride Interface”, APPLIED PHYSICS LETTERS, 97, 201102. (SCI) (IF: 3.411; SCI ranking: 19.6%)
  
  
• [24]     Y.-C. Wen, J.-H. Sun, C. Dais, D. Grützmacher, T.-T. Wu, J.-W. Shi, and C.-K. Sun*, 2010, “Three-Dimensional Phononic Nanocrystal Composed of Ordered Quantum Dots”, APPLIED PHYSICS LETTERS, 96, 123113. (SCI) (IF: 3.411; SCI ranking: 19.6%)
  
  
• [25]     Y.-E. Su, Y.-C. Wen, H.-M. Lee, S. Gwo, and C.-K. Sun*, 2010, “Observation of Sub-100 Femtosecond Electron Cooling Time in InN”, APPLIED PHYSICS LETTERS, 96, 052108. (SCI) (IF: 3.411; SCI ranking: 19.6%)
  
  
• [26]     Y.-C. Wen, C.-L. Hsieh, K.-H. Lin, H.-P. Chen, S.-C. Chin, C.-L. Hsiao, Y.-T. Lin, C.-S. Chang, Y.-C. Chang, L.-W. Tu, and C.-K. Sun*, 2009, “Specular Scattering Probability of Acoustic Phonons in Atomically Flat Interfaces”, PHYSICAL REVIEW LETTERS, 103, 264301. (SCI) (IF: 8.462; SCI ranking: 7.6%)
  
  
• [27]     Y.-C. Wen, T.-S. Ko, T.-C. Lu, H.-C. Kuo, J.-I. Chyi, and C.-K. Sun*, 2009, “Photogeneration of Coherent Shear Phonons in Oriented Wurtzite Semiconductors by Piezoelectric Coupling”, PHYSICAL REVIEW B, 80, 195201. (SCI) (IF: 3.836; SCI ranking: 26.9%)
  
  
• [28]     P.-H. Wang, Y.-C. Wen, S.-H. Guol, C.-M. Lai, H.-C. Lin, P.-R. Chen, J.-W. Shi, J.-I. Chyi, and C.-K. Sun*, 2009, “Electrically Manipulating the Optical Sensitivity Function in Quantum-Wells for Nanoacoustic Wave Detection”, APPLIED PHYSICS LETTERS, 95, 143108. (SCI) (IF: 3.411; SCI ranking: 19.6%)
  
  
• [29]     S.-Z. Sun, Y.-C. Wen, S.-H. Guol, H.-M. Lee, S. Gwo, and C.-K. Sun*, 2008, “Observation of Femtosecond Carrier Thermalization Time in Indium Nitride”, JOURNAL OF APPLIED PHYSICS, 103, 123513. (SCI) (IF: 2.068; SCI ranking: 39.9%)
  
  
• [30]     M.-C. Chan, S.-W. Chu, C.-H. Tseng, Y.-C. Wen, Y.-H. Chen, G.-D. John Su, and C.-K. Sun*, 2008, “Cr:Forsterite-Laser-Based Fiber-Optic Nonlinear Endoscope with Higher Efficiencies”, MICROSCOPY RESEARCH AND TECHNIQUE, 71, 559. (SCI) (IF: 1.147; SCI ranking: 61.9%,80%,65.9%)
  
  
• [31]     S.-P. Tai, Y. Wu, D.-B. Shieh, L.-J. Chen, K.-J. Lin, C.-H. Yu, S.-W. Chu, C.-H. Chang, X.-Y. Shi, Y.-C. Wen, K.-H. Lin, T.-M. Liu, and C.-K. Sun*, 2007, “Molecular Imaging of Cancer Cells Using Plasmon-resonant-enhanced Third-harmonic-generation in Silver Nanoparticles”, ADVANCED MATERIALS, 19, 4520. (SCI) (IF: 19.791; SCI ranking: 4.5%,2.3%,2.7%,3.6%,1.4%,2.2%)
  
  
• [32]     C.-Y. Chen, Y.-C. Wen, H.-P. Chen, T.-M. Liu, C.-C. Pan, J.-I. Chyi, and C.-K. Sun*, 2007, “Narrow Band Detection of Propagating Coherent Acoustic Phonons in Piezoelectric InGaN/GaN Multiple-quantum Wells”, APPLIED PHYSICS LETTERS, 91, 133101. (SCI) (IF: 3.411; SCI ranking: 19.6%)
  
  
• [33]     Y.-C. Wen, L.-C. Chou, H.-H. Lin, V. Gusev, K.-H. Lin, and C.-K. Sun*, 2007, “Efficient Generation of Coherent Acoustic Phonons in (111) InGaAs/GaAs Multiple Quantum Wells through Piezoelectric Effects”, APPLIED PHYSICS LETTERS, 90, 172102. (SCI) (IF: 3.411; SCI ranking: 19.6%)
  
  
• [34]     Y.-C. Wen, C.-Y. Chen, C.-H. Shen, S. Gwo, and C.-K. Sun*, 2006, “Ultrafast Carrier Thermalization in InN”, APPLIED PHYSICS LETTERS, 89, 232114. (SCI) (IF: 3.411; SCI ranking: 19.6%)
  
  
• [35]     Y.-C. Wen, L.-C. Chou, H.-H. Lin, K.-H. Lin, T.-F. Kao, and C.-K. Sun*, 2006, “Compositional Dependence of Longitudinal Sound Velocities of Piezoelectric (111) InxGa(1-x)As Measured by Picosecond Ultrasonics”, JOURNAL OF APPLIED PHYSICS, 100, 103516. (SCI) (IF: 2.068; SCI ranking: 39.9%)
  
  
• [36]     T.-M. Liu, S.-P. Tai, C.-H. Yu, Y.-C. Wen, S.-W. Chu, L.-J. Chen, M. Prasad, K.-J. Lin, and C.-K. Sun*, 2006, “Measuring Plasmon-resonance Enhanced Third-harmonic chi(3) of Ag Nanoparticles”, APPLIED PHYSICS LETTERS, 89, 043122. (SCI) (IF: 3.411; SCI ranking: 19.6%)
  
  
• [37]     K.-H. Lin, C.-T. Yu, Y.-C. Wen, C.-K. Sun*, 2005, “Generation of Picosecond Acoustic Pulses Using a P-N Junction with Piezoelectric Effects”, APPLIED PHYSICS LETTERS, 86, 093110. (SCI) (IF: 3.411; SCI ranking: 19.6%)
  
  

Chapters in Books

• [1]     Y.-C. Wen, T.-M. Liu, C. Dais, D. Grützmacher, T.-T. Chen, Y.-F. Chen, J.-W. Shi, and C.-K. Sun, 2010, “Bandgap Characteristics of A 3D Phononic Metamaterial composed of Ordered Quantum Dots”, editor(s): Tsung-Tsong Wu and Chien-Ching Ma, IUTAM Symposium on Recent Advances of Acoustic Waves in Solids (IUTAM Bookseries, Vol. 26), pp. 201-208, Berlin, Germany: Springer.
  
  

發現與突破