Personal Details

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Dr. NGO Chun Yong Andrew (Adjunct @ SIT)”

Scientist III/ Deputy Dept Head, Structural Materials

Staff

Structural Materials (STR) Department

+65 6416 8926

ngocya@imre.a-star.edu.sg

2 Fusionopolis Way, Innovis, #08-03, Singapore 138634


Research Details


  • Infrared thermography (IRT)

  • Non-destructive testing (NDT)

  • Condition monitoring (CM)

  • Hyperspectral imaging (HSI)

  • Remote & automated NDT inspection

  • Artificial intelligence (AI) / Machine learning (ML)

  • Infrared thermography, e.g. passive and active (flash, transient, lock-in, induction)

  • Conventional NDT techniques, e.g. visual, liquid penetrant, magnetic particle, ultrasonic, eddy current, radiography.

  • Composite repairs


Integrated digital shearography & pulsed phase thermography for dynamic non-destructive detection of weak bonds in carbon fiber reinforced polymer (CFRP) composites
Lock-in thermography for water ingress detection in elevator panels
Infrared inspection for non-uniform wall thickness
Non-destructive inspection for porosity in 3D-printed metals
Evaluation of ALD for low thermal expansion coating on Al-alloy
2D materials for optoelectronics


2010-Current    Scientist III & Deputy Head, Structural Materials Department, IMRE

2008-2009         Project Officer, Nanyang Technological University (NTU)

2003-2004         Process Engineer, Denselight Semiconductors Pte. Ltd.



  • Master of Business Administration, Nanyang Technological University, Singapore, 2015
  • Ph.D, Nanyang Technological University, Singapore, 2010
    • Thesis title: Study of semiconductor quantum dots for photonic modulator
  • B.Eng, Nanyang Technological University, Singapore, 2003
    • Specialization: Photonics and Optoelectronics

2013            A*STAR Sponsorship for RI Researchers

2012            Best Poster Award for 5th MRS-S Conference on Advanced Materials

2003-2007   A*STAR Graduate Scholarship

2002-2003  Singapore EDB Photonics Scholarship

1999-2003  Dean’s List, School of EEE, Nanyang Technological University

    • Course developer (Thermographic Testing), Singapore Institute of Technology (SIT)

    • Invited lecturer (Thermographic Testing), Singapore Institute of Technology (SIT)

    • Member, The Institution of Engineers, Singapore (IES)

    • Member, The American Society For Nondestructive Testing (ASNT)

    • Member, Project Management Institute (PMI)

    • Member, Non Destructive Testing Society of Singapore (NDTSS)

C. Y. Ngo, L. Ding and Vinod Kumar, ‘Novel Non Destructive Testing of Railway Structure using Infrared Thermography’, Singapore Rail Technology Conference (SRTC), Resorts World Sentosa, Singapore, 13-14 Nov 2018.

C. Y. Ngo, L. Ding and Vinod Kumar, ‘Lock-in thermography inspection for heat damaged composite materials’, 10th International Symposium on NDT in Aerospace, Dresden, Germany, 24-26 Oct 2018.

C. Y. Ngo, L. Ding and Vinod Kumar, ‘Laser lock-in thermography on dental inspection’, 45th Annual Review of Progress in Quantitative Nondestructive Evaluation, Burlington, VT, USA, 16-19 July 2018.

C. Y. Ngo, K. H. Goh, and Karen L. Ke, “Non-destructive testing (NDT) of additive manufactured (AM) metal alloys”, American Society of Non-destructive Testing (ASNT) Annual Conference 2017, Nashville, TN, USA, 30 – 02 November 2017.

C. Y. Ngo, K. H. Goh, and Karen L. Ke, “Nondestructive evaluation of defects in carbon fiber reinforced polymer (CFRP) composites”, SPIE Smart Structures Non-Destructive Evaluation (SSNDE), Portland, Oregon, USA, 25 – 29 March 2017.

C. Y. Ngo, K. H. Goh, Karen L. Ke, and W. H. Liew, “Nondestructive evaluation of defects in carbon fiber reinforced polymer (CFRP) composites”, Proc. SPIE 10169, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, and Civil Infrastructure, 101691P (2017).

C. Y. Ngo, L. Y. Hong, Z. Liu, R. F. Wu, E. H. Khoo, and J. H. Teng, “Nano-structures for high intensity fiber laser applications”, Proc. SPIE 9172, Nanostructured Thin Films VII, 917207 (2014).

Z. Liu, E. H. Khoo, C. Y. Ngo, L. Y. Hong, R. F. Wu, J. H. Teng, “Laser beam shaping with nano-structured lens”, Proc. SPIE 9194, Laser Beam Shaping XV, 91940L (2014).

C. Y. Ngo, “Semiconductor Quantum Dots for Photonic Modulators”, ed. Elizabeth Parker, Scholar's Press, Germany, 2014. Print. (Book)

S. Y. Lee, S. F. Yoon, C. Y. Ngo, and X. Guo, “Effects of annealing on performances of 1.3um InAs-InGaAs-GaAs quantum dot electroabsorption modulators”, Nanoscale Res. Lett. 8, 59 (2013).

L. Y. Deng, J. H. Teng, H. W. Liu, Q. Y. Wu, J. Tang, X. H. Zhang, S. A. Maier, K. P. Lim, C. Y. Ngo, S. F. Yoon, and S. J. Chua, “Direct Optical Tuning of the Terahertz Plasmonic Response of InSb Subwavelength Gratings”, Adv. Opt. Mat. 1, 128 (2013).

S. M. Hanham, A. I. Fernandez-Dominguez, J. H. Teng, S. S. Ang, K. P. Lim, S. F. Yoon, C. Y. Ngo, N. Klein, J. B. Pendry, and S. A. Maier, “Broadband Terahertz Plasmonic Response of Touching InSb Disks”, Adv. Mat. 24, OP226-230 (2012).

Y. Y. Liang, S. F. Yoon, C. Y. Ngo, W. K. Loke, and E. A. Fitzgerald, “Characteristics of InAs/InGaAs/GaAs QDs on GeOI substrates with single-peak 1.3 µm room-temperature emission”, J. Physics D 45, 145103 (2012).

Q. Cao, C. Z. Tong, S. F. Yoon, C. Y. Liu, and C. Y. Ngo, “Improved performance of 1.3 µm multilayer p-doped InAs/InGaAs quantum dot lasers using rapid thermal annealing”, IEEE T. Nanotechnol. 11, 231 (2012).

H. X. Zhao, S. F. Yoon, C. Y. Ngo, and R. Wang, “The effects of thermal annealing on the photoluminescence and DC characteristics of 1.3 µm p-doped InAs/InGaAs/GaAs quantum dot lasers”, Phys. Stat. Sol. C. 9, 326 (2012).

Y. Y. Liang, S. F. Yoon, C. Y. Ngo, W. K. Loke, and E. A. Fitzgerald, “InAs/GaAs quantum dots on germanium-on-insulator-on-silicon substrates (GeOI) using molecular beam epitaxy”, Phys. Stat. Sol. C. 9, 214 (2012).

H. X. Zhao, S. F. Yoon, C. Y. Ngo, and R. Wang, “Improved ground-state modulation characteristics in 1.3μm InAs/GaAs quantum dot lasers by rapid thermal annealing”, Nanoscale Res. Lett. 6, 382 (2011).

R. Wang, S. F. Yoon, H. X. Zhao, and C. Y. Ngo, “Geometrical Effects on Characteristic Temperature and Modal Gain of InAs/GaAs Quantum Dot Lasers”, IEEE Photonics Technol. Lett. 23, 863 (2011).

Y. Y. Liang, S. F. Yoon, C. Y. Ngo, H. Tanoto, K. P. Chen, W. K. Loke, and E. A. Fitzgerald, “Effects of growth parameters on the surface morphology of InAs quantum dots grown on graded Si1-xGex/Si substrate”, J. Cryst. Growth 323, 426 (2011).

H. X. Zhao, S. F. Yoon, C. Y. Ngo, R. Wang, Q. Cao, and C. Y. Liu, “Effects of annealing and p-doping on the two-state competition in 1.3 µm InAs/GaAs quantum dot lasers”, IEEE T. Nanotechnol. PP, 1-1 (2011).

C. Y. Ngo, S. F. Yoon, H. Tanoto, H. K. Hui, D. R. Lim, Vincent Wong, and S. J. Chua, “Structural and Optical Properties of High Density InAs Bilayer Quantum Dots Grown at Constant Growth Rate and Temperature”, J. Cryst. Growth 323 (2011) 167.

C. Y. Ngo, S. F. Yoon, and J. H. Teng, “Bandgap Engineering of 1.3 μm Quantum Dot Structures for Terahertz (THz) Emission”, J. Cryst. Growth 323 (2011) 211.

K. P. Lim, H. T. Pham, S. F. Yoon, K. H. Tan, and C. Y. Ngo, “InSb1-xNx/InSb/GaAs alloys by thermal annealing for mid infrared photodetection”, Appl. Phys. Lett. 97, 221112 (2010).

Y. Wang, S. F. Yoon, C. Y. Ngo, and C. Y. Liu, “Photoluminescence study of rapid thermal annealed GaAs/AlGaAs quantum dots formed by low energy ion sputtering”, Adv. Sci. Lett. 3, 393 (2010).

H. X. Zhao, S. F. Yoon, C. Y. Ngo, R. Wang, C. Z. Tong, C. Y. Liu, and Q. Cao, “Effect of thermal annealing on the dynamic characteristics of InAs/GaAs quantum dot lasers”, IEEE Photonics J. 2, 630 (2010).

K. P. Lim, H. T. Pham, S. F. Yoon, C. Y. Ngo, and S. Tripathy, “Effect of thermal annealing on properties of InSbN grown by molecular beam epitaxy”, Appl. Phys. Lett. 96, 161903 (2010).

C. Y. Ngo, S. F. Yoon, D. R. Lim, Vincent Wong, and S. J. Chua, “Electroabsorption characteristics of single-mode 1.3µm InAs/InGaAs/GaAs ten-layer quantum dot waveguide”, IEEE Photonics Technol. Lett. 22, 1717 (2010).

Q. Cao, S. F. Yoon, C. Z. Tong, C. Y. Ngo, C. Y. Liu, R. Wang, and H. X. Zhao, “Two-state competition in 1.3-µm multilayer as-grown and intermixed InAs/InGaAs quantum dot lasers”, Appl. Phys. Lett. 95, 191101 (2009).

Z. Xu, S. F. Yoon, W. K. Loke, C. Y. Ngo, K. H. Tan, S. Wicaksono, N. Saadsaoud, D. Decoster, M. Zegaoui, and J. Chazelas, “Design Considerations for 1.3 µm GaNAsSb–GaAs High Speed and High Quantum Efficiency Waveguide Photodetectors”, J. Lightwave Technol. 27, 2518 (2009).

H. Tanoto, S. F. Yoon, T. K. Ng, C. Y. Ngo, C. Dohrman, E. A. Fitzgerald, L. H. Tan, and C. H. Tung, “Origin and suppression of V-shaped defects in the capping of self-assembled InAs quantum dots on graded Si1-xGex/Si substrate”, Appl. Phys. Lett. 95, 052111 (2009).

Y. Wang, S. F. Yoon, C. Y. Ngo, C. Z. Tong and C. Y. Liu, “A study of low energy Ar+ sputtering induced GaAs QDs”, J. Appl. Phys. 106, 024301 (2009).

C. Y. Ngo, S. F. Yoon, D. R. Lim, Vincent Wong, and S. J. Chua, “Optical properties of 1.3µm InAs/GaAs bilayer quantum dots with high areal density”, Appl. Phys. Lett. 95, 181913 (2009).

C. Y. Ngo, S. F. Yoon, W. K. Loke, Q. Cao, D. R. Lim, Vincent Wong, Y. K. Sim, and S. J. Chua, “Characteristics of 1.3µm InAs/InGaAs/GaAs quantum dot electroabsorption modulator”, Appl. Phys. Lett. 94, 143108 (2009).

C. Y. Ngo, S. F. Yoon, and S. J. Chua, “Ambient temperature dependence on emission spectrum of InAs quantum dots”, Phys. Status Solidi (b)  246, 799 (2009).

C. Y. Ngo, S. F. Yoon, W. K. Loke, T. K. Ng, and S. J. Chua, “Photovoltaic characteristics of InAs/InGaAs/GaAs QD heterostructures”, J. Cryst. Growth 311, 1885 (2009).

H. Tanoto, S. F. Yoon, C. Y. Ngo, W. K. Loke, C. Dohrman, E. A. Fitzgerald, and B. Narayanan, “Structural and optical properties of stacked self-assembled InAs/InGaAs quantum dots on graded Si1-xGex/Si substrate”, Appl. Phys. Lett. 92, 213115 (2008).

Y. Wang, S. F. Yoon, C. Y. Liu, C. Y. Ngo, and J. Ahn, “Temperature and excitation density dependent photoluminescence of sputtering-induced GaAs/AlGaAs quantum dots”, Nanotechnology 19, 015602 (2008).

C. Y. Ngo, S. F. Yoon, W. K. Loke, Q. Cao, D. R. Lim, Vincent Wong, Y. K. Sim, and S. J. Chua, “Investigation of semiconductor quantum dots for waveguide electroabsorption modulator”, Nanoscale Res. Lett. 3, 486 (2008).

C. Y. Ngo, S. F. Yoon, D. R. Lim, Vincent Wong, and S. J. Chua, “Temperature dependent photoluminescence study of 1.3μm undoped InAs/InGaAs/GaAs quantum dots”, Appl. Phys. Lett. 93, 041912 (2008).

Editorial selection for Virtual Journal of Nanoscale Science & Technology, Vol. 18, Issue 6, Optical Properties and Quantum Optics. http://www.vjnano.org.

C. Y. Ngo, S. F. Yoon, and S. J. Chua, “Quantum Dot Technology For Broadband Light Sources”, Quantum Dots: Research, Technology and Applications. Ed. Randolf W. Knoss, Nova Science Publishers, New York, 2008, 203-244. Print. (Book chapter)

Y. Wang, S. F. Yoon, C. Y. Ngo, and J. Ahn, “Surface Morphology Evolution of GaAs by Low Energy Ion Sputtering”, Nanoscale Res. Lett. 2, 504-508 (2007).

Q. Cao, S. F. Yoon, C. Y. Liu, and C. Y. Ngo, "Narrow ridge waveguide high power single mode 1.3μm InAs/InGaAs ten-layer quantum dot lasers", Nanoscale Res. Lett. 2, 303-307 (2007).

C. Y. Ngo, S. F. Yoon, W. J. Fan, and S. J. Chua, “Origins of high radiative efficiency and wideband emission from InAs quantum dots”, Appl. Phys. Lett. 91, 191901 (2007).

Editorial selection for Virtual Journal of Nanoscale Science & Technology, Vol. 16, Issue 21, Optical Properties and Quantum Optics. http://www.vjnano.org.

C. Y. Ngo, S. F. Yoon, C. Z. Tong, W. K. Loke and S. J. Chua, “Investigation of growth temperature on the surface morphology and optical properties of 1.3µm InAs/InGaAs/GaAs quantum dot structures”, Nanotechnology 18, 365708 (2007).

C. Y. Ngo, S. F. Yoon, W. J. Fan, and S. J. Chua, “Tuning InAs quantum dots for high areal density and wideband emission”, Appl. Phys. Lett. 90, 113103 (2007).

Editorial selection for Virtual Journal of Nanoscale Science & Technology, Vol. 15, Issue 12, Optical Properties and Quantum Optics. http://www.vjnano.org.

C. Z. Tong, S. F. Yoon, C. Y. Ngo, C. Y. Liu, and W. K. Loke, “Rate Equation for 1.3μm Dots-Under-a-Well and Dots-in-a-Well Self-Assembled InAs-GaAs Quantum-Dot Lasers”, IEEE J. Quantum Electron. 42, 1175-1183 (2006).

C. Y. Ngo, S. F. Yoon, W. J. Fan, and S. J. Chua, “Effects of size and shape on electronic states of quantum dots”, Phys. Rev. B 74, 245331 (2006).

Editorial selection for Virtual Journal of Nanoscale Science & Technology, Vol. 15, Issue 2, Electronic Structure and Transport. http://www.vjnano.org.

 

 



Last updated on : 02 Apr 2019 08:22 AM