Workshop/Lecture Information

●2017 Mar. 9 "International Workshop on Terahertz Nanoscience and Nanotechnology"

"International Workshop on Terahertz Nanoscience and Nanotechnology" will be held on March 9.
We welcome anybody who is interested in this progam.

 

Date: March 9
Time: 10:00 - 17:30
Place: E1-115 (Memorial Hall), Division of Electronic and Information, School of Engineering,
   Suita Campus, Osaka University
Language: English

Program
10:00 – 10:05  Opening Remarks: Iwao Kawayama (Osaka University)

SESSION I
10:05 – 10:45 Junichiro Kono (Rice University, US) invited
  “Terahertz Cavity Quantum Electrodynamics”
10:45 – 11:25 Masaaki Ashida (Osaka University, Japan) invited
  “Extreme THz spectroscopy: THz-FEL and ultra-broadband ABCD”
11:25 – 12:00 Manjakavahoaka Razanoelina (Osaka University, Japan)
  “Parallel-plate-waveguide THz-TDS for ultrathin conductive materials”

12:00 – 13:00 Lunch Break

13:00 – 13:40 Frank Hegmann (University of Alberta, Canada) invited
  “Imaging ultrafast dynamics on the nanoscale with terahertz scanning tunneling microscopy”
13:40 – 14:20 Ikufumi Katayama (Yokohama National University, Japan) invited
  “Terahertz-field-induced tunneling in metals and semi-metals”
14:20 – 15:00 Takashi Arikawa (Kyoto University) invited
  “Observation and Control of Spoof Localized Surface Plasmons Using Terahertz Near-field
   Microscope”
15:00 – 15:40 Willie Padilla (Duke University, US) invited
  “Single Pixel THz Imaging with Metamaterials”

15:40 – 16:00: Coffee Break

SESSION II: Student Session
16:00 - 16:15 Tomohide Morimoto (Ashida Lab., Osaka University, Japan)”
  “Magneto-THz spectroscopy of photoexcited semiconductors”
16:15 – 16:30 Keita Miyagawa (Ashida Lab., Osaka University, Japan)
  “Photocarriers in the GaAs-based photovoltaic device evaluated with the pulsed THz emission”
16:30 – 16:45 Naotaka Yoshikawa (Tanaka Lab., Kyoto University, Japan)
  “High-harmonic generation in two-dimensional monolayer materials”
16:45 – 17:00 Tomoaki Ichii (Tanaka Lab., Kyoto University, Japan)
  “Photoexcited carriers in high-purity diamond studied by terahertz time-domain spectroscopy”
17:00 – 17:15 Kosuke Okada (Tonouchi Lab., Osaka University, Japan)
  “Ultra-trace Measurement of Blood Glucose Level using Small Aperture Terahertz Chip”

17:15 - 17:20:  Closing Remarks Masayoshi Tonouchi (Osaka University, Japan)

 

Access
Suita Campus Map, Osaka University

10 minutes from Osaka Monorail Station “Handai-byoin-mae ”
5 minutes from Bus Stop “Handai-honbu-mae"

 

Contact: Iwao KAWAYAMA, Associate Professor
      Institute of Laser Engineering, Osaka University
      teratech@ile.osaka-u.ac.jp
      TEL: 06-6879-7983
      

●2016 Nov. 4 Special lecture of "Terahertz Cavity Quantum Electrodynamics"

Special lecture of "Terahertz Cavity Quantum Electrodynamics" by Prof. Junichiro Kono (Rice University, Guest Professor of Osaka University) will be held on November 4.
We welcome anybody who is interested in this topic.

 

Date: November 4
Time: 16:20 - 17:50 (The 5th period)
Room: E1-215
Language: English

Speaker: Prof. Junichiro Kono (Rice Uniersity (Guest Professor of Osaka Univ.))

Title: Terahertz Cavity Quantum Electrodynamics

Abstract:
Nonperturbative coupling of light with condensed matter in an optical cavity is expected to reveal a host of coherent many-body phenomena and states. In addition, strong coherent light-matter interaction in a solid-state environment is of great interest to emerging quantum-based technologies. However, creating a system that combines a long electronic coherence time, a large dipole moment, and a high cavity quality (Q) factor has been a challenging goal. After reviewing previous studies on cavity quantum electrodynamics in solids, this talk will describe our recent observation of collective ultrastrong light-matter coupling in an ultrahigh-mobility two-dimensional electron gas (2DEG) in a high-Q terahertz photonic-crystal cavity in a quantizing magnetic field, demonstrating a cooperativity of 360 [1].

[1] Q. Zhang, M. Lou, X. Li, J. L. Reno, W. Pan, J. D. Watson, M. J. Manfra, and J. Kono, “Collective Non-perturbative Coupling of 2D Electrons with High-Quality-Factor Terahertz Cavity Photons,” Nature Physics, published online on August 22, 2016. See also arXiv:1604.08297.

 

●2015 Dec. 1-28 "Ultrafast Phenomena" Lecture Schedule

Lectured by: Prof. Dmitry Turchinovich

# Date Topic
Dec. 1 (Tue) Introduction to ultrafast science, Tomescales of physical phenomena. Lase basics
Dec. 3 (Thu) Laser modelocking and amplification
Dec. 8 (Tue) Propagation of ultrashort optical signals. Dispersion and pulseshaping
4 Dec. 10 (Thu) Basic nonlinear optics: nonlinear wave conversion
5 Dec. 15 (Tue) Measurment of ultrashort laser pulses
6 Dec. 17 (Thu) Light-matter interaction - basics
7 Dec. 22 (Tue) Ultrafast spectroscopy: terahertz spectroscopy
8 Dec. 28 (Mon) Ultrafast spectroscopy: attosecond spectroscopy

You can find each text from bellow.

#1 Dec.1

#2 Dec.3

#3 Dec.8  Refernce : http://frog.gatech.edu/index.html

#4 Dec.10

#5 Dec.15

#6 Dec.17

#7 Dec.22

#8 Dec.28