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Determination of optical Kerr nonlinearity of a photonic bandgap structure by Z-scan measurement

Title
Determination of optical Kerr nonlinearity of a photonic bandgap structure by Z-scan measurement
Authors
Hwang J.Wu J.W.
Ewha Authors
우정원
SCOPUS Author ID
우정원scopus
Issue Date
2005
Journal Title
Optics Letters
ISSN
0146-9592JCR Link
Citation
Optics Letters vol. 30, no. 8, pp. 875 - 877
Indexed
SCI; SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
Through analysis of the dispersion relation in a photonic bandgap structure, the effective optical Kerr non-linearity that determines a Z-scan profile particularly near the stop-band edges, is derived. Near and inside the stop band, the nonlinear optical phase change that originates from an off-resonant response is converted into a change in nonlinear optical intensity through Bragg reflection. The Z-scan measurement of a cholesteric liquid-crystal photonic bandgap structure confirmed that off-resonant Kerr nonlinearity is responsible for the characteristic open-aperture Z-scan profiles near the stop-band edges. © 2005 Optical Society of America.
DOI
10.1364/OL.30.000875
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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