Title of Presentation

“Creation of peculiar beams by photonic-crystal lasers”

It would be no exaggeration to say that “Light” and lasers have supported the recent progress of information technology and nano-technology since the second half of the 20th century. One example to say that the Information storage media such as CDs and DVDs, which are one familiar example, write and read data with lenses and lasers. The fabrication of nano-scaled semi-conductor devices that are a determining factor of computer performance is carried out using the optical technology of photo-lithography. Furthermore, lasers are also being used more widely in the fields of advanced sensing such as bio-sensors and vehicle-mounted sensors. Bio-sensors use laser beams to detect information from fluorescence or the scattering of tiny materials like protein. Meanwhile, vehicle-mounted sensors similarly use laser beams to detect obstacles in front of a car and to inform the driver. Today, these fields require higher-density, higher-precision, higher-sensitivity and higher-speed lasers. I am aspiring to contribute to such fields by developing new laser sources.

In my lecture, I will discuss how to create smaller focal spot, which can lead to the further development of higher density optical data storage, higher accuracy laser processing and higher sensitivity bio-sensing. I will also introduce the development of novel laser sources to produce controlled shapes and polarizations, which can generate smaller focal spot.

Profile

Web Site URL

http://www.cis.kit.ac.jp/~kyoko/en/

A brief Biography

Education and Employment Record

March/2002	Graduate from Fukuoka Futaba High School
March/2006	Graduate from Undergraduate School of Industrial Chemistry, Faculty of Engineering, Kyoto University. Bachelor of Engineering.
March/2008	Graduate from Graduate School of Engineering, Kyoto University. Master of Engineering.
April/2008	JSPS Research Fellow (DC1).
March/2011	Graduate from Graduate School of Engineering, Kyoto University. Ph. D. (Engineering).
April/2011	Program-Specific Researcher (Industry-Government-Academia Collaboration), Graduate School of Engineering, Kyoto University.
April/2012	Program-Specific Assistant Professor (Hakubi), Hakubi Center for Advanced Research, Kyoto University. Kyoto University Hakubi Researcher
May/2014	Research Collaborator, University of Bristol
March/2015	Lecturer, Institute for the Promotion of University Strategy, Global Excellence, Kyoto Institute of Technology.

Details of selected Awards and Honors

Awards:

July/2007	EMS Award（26th Electronic Materials Symposium）
April/2010	Poster Award (Science Council of Japan, ICO section meeting)
March/2011	The 3rd Tachibana Award for the Most Outstanding Female Researcher (Student) (Kyoto University)
November/2011	Global-COE Research Grant (Center for Excellence for Education and Research on Photonics and Electronics Science and Engineering, Kyoto University)
December/2012	LQE Award (Technical Group of Lasers and Quantum Electronics, The Institute of Electronics, Information and Communication Engineers)
March/2015	The 5th Promotion and Nurturing of Female Researchers Contribution Award (The Japan Society of Applied Physics)

A list of selected Publications

1. K. Kitamura, Ting Ting Xu, and S. Noda “Investigation of electric field enhancement between metal blocks at the focused field generated by a radially polarized beam”, Optics Express, vol. 21, Issue 26, 32217-32224 (2013).

2. K. Kitamura, M. Nishimoto, K. Sakai, and S. Noda, “Needle-like focus generation by radially polarized halo beams emitted by photonic-crystal ring-cavity laser,” Applied Physics Letters, 101, 221103 (2012).

3. K. Kitamura, K. Sakai, N. Takayama, M. Nishimoto, and S. Noda, “Focusing properties of vector vortex beams emitted by photonic-crystal lasers,” Optics Letters, Vol. 37, No. 12, pp2421-2423 (2012).

4. K. Kitamura, K. Sakai and S. Noda, “Finite-difference time-domain (FDTD) analysis on the interaction between a metal block and a radially polarized focused beam,” Optics Express, Vol.19, No. 15, pp13750–13756 (2011).

5. S. Iwahashi, Y. Kurosaka, K. Sakai, K. Kitamura, N. Takayama and S. Noda, “High-order vector beams produced by photonic-crystal lasers,” Optics Express, Vol.19, No. 13, pp11963–11968 (2011).

6. K. Kitamura, K. Sakai and S. Noda, “Sub-wavelength focal spot with long depth of focus generated by radially polarized, narrow-width annular beam,” Optics Express, Vol 18, No. 5, pp4518-4525 (2010).