Abstract
A systematic study of the influence of silver film thickness on the transmittance spectra through a silicon nitride photonic crystal slab (SiN-PCS) coated with silver films of various thicknesses is presented. The transmission spectrum through a bare SiN-PCS reveals guided resonances. When an ultrathin silver film (<10nm in thickness) is coated on a SiN-PCS, isolated silver nanoparticles are formed resulting in the suppression of guided resonances. In addition, a red shift is found in the optical transmittance spectra measured on SiN-PCS coated with a progressively thicker silver film. This may be attributed to the formation of localized surface plasmon resonances at the interface between silver nanoparticles and silicon nitride. A continuous texture is formed as the thickness of the silver film is increased up to 20 nm, resulting in a transition from localized surface plasmon resonances to surface plasmon polaritons. Furthermore, the surface plasmon polaritons that are formed externally (internally) are identified in SiN-PCS coated on one side (double sides) with a 20-nm-thick silver film.
| Original language | English |
|---|---|
| Journal | Japanese Journal of Applied Physics |
| Volume | 49 |
| Issue number | 6 PART 2 |
| DOIs | |
| Publication status | Published - 2010 Jun 1 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
- Physics and Astronomy(all)
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Effect of silver thickness on the formation of surface plasmon polaritons in silver-coated silicon nitride photonic crystal slabs. / Shyu, Jia Hong; Ou, Neil; Chien, Jui Hsing; Lee, Huang Ming; Tai, Chao Yi; Wu, Jong-Ching.
In: Japanese Journal of Applied Physics, Vol. 49, No. 6 PART 2, 01.06.2010.Research output: Contribution to journal › Article
TY - JOUR
T1 - Effect of silver thickness on the formation of surface plasmon polaritons in silver-coated silicon nitride photonic crystal slabs
AU - Shyu, Jia Hong
AU - Ou, Neil
AU - Chien, Jui Hsing
AU - Lee, Huang Ming
AU - Tai, Chao Yi
AU - Wu, Jong-Ching
PY - 2010/6/1
Y1 - 2010/6/1
N2 - A systematic study of the influence of silver film thickness on the transmittance spectra through a silicon nitride photonic crystal slab (SiN-PCS) coated with silver films of various thicknesses is presented. The transmission spectrum through a bare SiN-PCS reveals guided resonances. When an ultrathin silver film (<10nm in thickness) is coated on a SiN-PCS, isolated silver nanoparticles are formed resulting in the suppression of guided resonances. In addition, a red shift is found in the optical transmittance spectra measured on SiN-PCS coated with a progressively thicker silver film. This may be attributed to the formation of localized surface plasmon resonances at the interface between silver nanoparticles and silicon nitride. A continuous texture is formed as the thickness of the silver film is increased up to 20 nm, resulting in a transition from localized surface plasmon resonances to surface plasmon polaritons. Furthermore, the surface plasmon polaritons that are formed externally (internally) are identified in SiN-PCS coated on one side (double sides) with a 20-nm-thick silver film.
AB - A systematic study of the influence of silver film thickness on the transmittance spectra through a silicon nitride photonic crystal slab (SiN-PCS) coated with silver films of various thicknesses is presented. The transmission spectrum through a bare SiN-PCS reveals guided resonances. When an ultrathin silver film (<10nm in thickness) is coated on a SiN-PCS, isolated silver nanoparticles are formed resulting in the suppression of guided resonances. In addition, a red shift is found in the optical transmittance spectra measured on SiN-PCS coated with a progressively thicker silver film. This may be attributed to the formation of localized surface plasmon resonances at the interface between silver nanoparticles and silicon nitride. A continuous texture is formed as the thickness of the silver film is increased up to 20 nm, resulting in a transition from localized surface plasmon resonances to surface plasmon polaritons. Furthermore, the surface plasmon polaritons that are formed externally (internally) are identified in SiN-PCS coated on one side (double sides) with a 20-nm-thick silver film.
UR - http://www.scopus.com/inward/record.url?scp=77955313765&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77955313765&partnerID=8YFLogxK
U2 - 10.1143/JJAP.49.06GG07
DO - 10.1143/JJAP.49.06GG07
M3 - Article
AN - SCOPUS:77955313765
VL - 49
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
SN - 0021-4922
IS - 6 PART 2
ER -