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Advanced Nanotechnology (A)

Credits: 3

Lecturers:

Dr. Chang, Yia-Chung
Dr. Shih, Min-Hsiung
Dr. Nazarov, Valdmir 
Dr. Chang, Shuwei

Classroom: C101, Interdisciplinary Research Building for Science and Technology, AS
中研院 跨領域大樓C101

Class hour: Wednesday, 09:10-12:00

Course overview:

Session I: Nanophotonics A: Photonic crystals and applications
Instructor: Min-Hsiung Shih (施閔雄) ; Email: mhshih@gate.sinica.edu.tw
(03/07) The fundamental tools

    • Maxwell’s equations
    • Wave equation
    • Light propagation in the mater, phase velocity and group velocity
    • Simulation tools: plane wave expansion (PWE) method
    • Simulation tools: finite-difference time-domain (FDTD) method

(03/14)  Photonic crystals without defects

    • Photonic band structure
    • Photonic crystals
    • 3-D photonic crystals and light line
    • Applications

(03/21) Photonic crystal cavity laser

    • Defect modes inside the band gap
    • Quality factor of a cavity and photon lifetime
    • Different types of micro-cavities
    • Applications: lasers, LEDs and etc
    • Cavity QED

(03/28) Photonic crystal waveguides and integrated circuits

    • Defect bands inside the band gap
    • Propagation loss issue factor of a cavity and photon lifetime
    • Different types of photonic crystal waveguides
    • Applications 
    • (Midterm Exam: part A)

Session II: Nanophotonics B: Electromagnetics of left-hand materials and plasmonics
Instructor:  Suwei Chang (張書維) ; Email: swchang@sinica.edu.tw

(04/11) Review of Maxwell’s equations

    • Constitutive relation
    • Real-time Poynting theorem
    • Time-harmonic Poynting theorem
    • Plane waves and types of materials

 (04/18)  Propagation, transmission, and reflection of plane waves

    • Directions of wave vector and  power flow
    • Transmission and reflection -regular materials
    • Transmission and reflection -left-hand materials
    • Surface wave

(04/25) Super lens based on left-hand material

    • Conventional lens
    • Super lens based on left-hand materials
    • Role of loss and limit of superlens

 (05/02) Surface-plasmon polariton and related guiding mode

    • Bulk plasmon polariton
    • Modes in dilectrc-metal-dilectric waveguide-even modes
    • Modes in dilectrc-metal-dilectric waveguide-odd modes
    • (Midterm Exam: part B)

Session III: Nanoelectronics A: Electron spectroscopies of low-dimensional systems

Instructor: Vladimir U. Nazarov ; Email: nazarov@gate.sinica.edu.tw

(05/9) Experimental Method of Electron Energy-Loss Spectroscopy (EELS).

    • High-resolution EELS.
    • EELS in transmission electron microscope (TEM).
    • Single-particle (inter-band) and collective (plasmon) excitations.
    • Bulk, surface, and interface plasmons. Frequency and wave-vector dispersion.

 (05/16) Electronic excitations in low-dimensional systems.

    • 2D plasmon.
    • Acoustic plasmon in the surface state of a semi-infinite metal.

(05/23) Density-functional theory (DFT) and the time-dependent DFT (TDDFT) as theoretical tools to study the ground-state and excitation properties of many-body systems.

    • Electron density as a basic variable.
    • Kohn-Sham formulation of DFT.
    • Local density approximation (LDA);  Generalized Gradient Approximation (GGA)
    • Optimized effective potential (exact exchange).

 (05/30) Combined inelastic and elastic scattering of electrons in quasi-2D crystals.

  • (Final Exam: part A) 

Session IV: Nanoelectronics B: Opto-electronic properties of two-dimensional materials and micro/nano structures

Instructor: Yia-Chung Chang (張亞中); Email: yiachang@gate.sinica.edu.tw

 (06/06)  Physics of two-dimensional materials and nanostructures

    • Introduction of graphene and transition-metal dichalcogenides (TMD)
    • DFT theory designed for two-dimensional materials
    • Multiscale simulation of low-dimensional materials

(06/13)  Applications for 2D materials and nanostructures

    • Characteristics of Graphene/TMD heterostructure  junctions
    • Nanostructure devices
    • Biosensing

(06/20) Optical excitations of two-dimensional materials and nanostructures.

    • Dielectric screening and many-body effects
    • Excitonic effects
    • Ellipsometric spectra

(06/27) Microscopic imaging ellipsometry of micro/nano structures

    • Microscopic imaging ellipsometry  and  comparison with simulation
    • Simulation of near and far-field for light scattering
    • (Final Exam: part B)

Exam Announcement:

  1. Midterm-Report Announcement

References

1) J. D. Joannopoulos, R.D. Meade and J.N. Winn, Photonic crystals: Molding the follow of light (1995)
2) J.-M. Lourtioz et al., Photonic crystals: towards nanoscale photonic devices (2005)
3) K. Sakoda, Optical properties of photonic crystals (2001)
4) K. Inoue and K. Ohtaka, Photonic crystals: physics, fabrication and applications (2004)
5) A. Yariv and P. Yeh, Optical waves in crystals (1984)
6) L. Solymar and E Shamonina, Waves in Metamaterials, Oxford  (2009)
7) C. F. Bohren and D. R. Huffman, “Absorption and Scattering of Light by Small Particles” (Wiley, New York, 1983)
8) P. W. Barber  and S. H. Hill, Light Scattering by Particles: Computational Methods (World Scientific, New Jersey, 1990)
9) M. I. Mishchenko, L. D. Travis, and A. A. Lacis, Scattering ,Absorption and Emission of Light by Small Particles”(Wiley, New York, 1983)
10) R. M. Martin, Electronic Structures: Basic Theory and Practical Methods, Cambridge (2004)
11) G. D. Mahan, Many Particle Physics, 3rd Ed. Kluwer Academic (2000)