5 / 30
Laser Optics & Photonics and Atomic & Plasma Science 2018
J u l y 1 6 - 1 7 , 2 0 1 8
P r a g u e , C z e c h R e p u b l i c
Page 31
American Journal of Computer Science and Information Technology
ISSN: 2349-3917
E u r o S c i C o n J o i n t E v e n t o n
Laser Optics & Photonics and
Atomic & Plasma Science
Figure: 2
A rough example can be seen from the first 845nm spectral data taken from cortical (frontal lobe) test measurements:
A normally incident beam from PQR laser chip produced a reduced (~10%) beam
Figure. 3
A normally incident beam from PQR laser chip bounced back from front cranial region. Although not a good chip package
for any cortical trials, we still tried since the current chip package of a 64x64 hole PQR array is proper for in vivo transmission
tests with outer ear, and it seems promising. In doing so the emission power was moderately raised for the measurements and
peak resolutions (incident 842 nm and outgoing 838 nm) are not yet clearly understood. Again this result is interesting although
we cannot pinppoint certain ionic presence. We have to improve the situation further for example with pulsed operations
O’Dae Kwon, Am J Compt Sci Inform Technol 2018, Volume 6
DOI: 10.21767/2349-3917-C1-002
Recent Publications
1. B H Park, S D Baek, J Y Kim, J Bae and O Kwon (2002) Optical sensing by using photonic quantum ring lasers and resonance
enhanced photodetectors. Opt. Eng. Vol. 79, pp. 1339-1345.
2. B H Park, J Bae, M J Kim, and O Kwon (2002) Chiral wave propagation manifold of the photonic quantum ring laser. Appl.
Phys. Lett. Vol. 81, pp 580-582.
3. C Ahn, H Y Kang, and O Kwon (1998) Angle-dependent multiple-wavelength radial emissions in a toroidal microcavity: (A
photonic quantum ring laser), SPIE, Vol. 3283, pp.241-251
4. J C Ahn et al (1999) Photonic Quantum Ring. Phys. Rev. Lett. Vol. 82, No.3 pp 536-539.
5. J Bae, J Lee, Kwon, and V G Minogin (2003) Spectrum of three-dimensional photonic quantum-ring microdisk cavities:
comparison between theory and experiment. Opt. Lett. Vol. 28, No. 20, pp 1861-1863
Biography
O’Dae Kwon is a Professor Emeritus at POSTECH. He received his BS from Seoul Natl. Uniersity in 1969; MS in 1975 and PhD in 1978 from Rice University; He has worked at Cor-
nell University from 1978-82, at Dow Research Center from 1983-86 and currently at POSTECH since 1986. He visited AT&T Bell Lab during 1993-94, UCL in 2000-01. He won the
Scientist of the Year 1998 in Korea and Best paper award, IEEE NMDS 2007. He wrote 2 Phys Rev Letts and over 70 papers (30 papers on PQR lasers). He is interested in Optics
and Quantum Devices and Theories.
odkwon@postech.ac.kr