Evaluation of Structure and Gas Response in Porphyrin Langmuir-Blodgett Films by Attenuated Total Reflection Measurements

Kato, Keizo; Araki, Hitoshi; Shinbo, Kazunari; Kaneko, Futao; Dooling, Colin M.; Richardson, T.

doi:10.1143/jjap.41.2779

Cited by 9 publications

(4 citation statements)

References 6 publications

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“…Surface plasmons (SPs) are coupling mode of free electrons and light [1]. The attenuated total reflection (ATR) method utilizing the resonance excitation of SPs can be used for sensing and evaluating ultrathin films [2][3][4]. In the measurement of A'I'R, the Kretschmann configuration (prism I metal film I dielectric film structure) is generally used.…”

Section: Introductionmentioning

confidence: 99%

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Humidity Sensing Using Surface Plasmon Excitation in Fluorescent Microsphere Films

Kobayashi¹,

Fukushima²,

Ohdaira³

et al. 2007

Trans. Mat. Res. Soc. Japan

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In this study, thin films of 100-nm. polystyrene (PS) microspheres mixed with polyvinyl alcohol (PV A) were prepared, and changes in the attenuated total reflection (ATR) using surface plasmon (SP) excitation due to humidity adsorption were investigated. The PS microspheres contained luminescent dyes, and SP emission light due to these dyes was also observed. The sample configuration was prism /Ag film (50 nm) I sphere film structure. The ATR dip and SP emission peak angles shifted in line with the adsorption and desorption of humidity. Furthermore, the intensity ofthe SP emission light changed, and this was considered to be a result of the PV A swelling due to humidity adsorption. The humidity response of the A TR and SP emission light was repeatedly observed. The adsorbed mass was also monitored using a quartz crystal microbalance.

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Section: Introductionmentioning

confidence: 99%

“…The reflection curve as a function of the incident angle (i.e. the ATR property) strongly depends on the metal film and the media adjacent to the metal film [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Humidity Sensing Using Surface Plasmon Excitation in Fluorescent Microsphere Films

Kobayashi¹,

Fukushima²,

Ohdaira³

et al. 2007

Trans. Mat. Res. Soc. Japan

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“…The reflection curve as a function of the incident angle i , which is an ATR property, strongly depends on the types of metal film and medium adjacent to the metal film. [1][2][3][4] Figure 1 shows the ATR configuration used in this study. The glass substrate with the PVA:sphere film was attached to the bottom of a half cylindrical prism (BK-7, n ¼ 1:522 at 488.0 nm) using index matching oil.…”

Section: Methods Of Measurements 221 Atr Curvesmentioning

confidence: 99%

“…1) It is known that the attenuated total reflection (ATR) method utilizing the resonant excitation of SP can be used for the evaluation of ultrathin films, and many studies on the sensing of gas molecules and biomolecules have been reported. [2][3][4] In the ATR configuration, some portions of the SP energy are emitted as far-field light at an SP resonance angle through a prism, that is, SP emission light. [5][6][7][8] In particular, SP emission light produced by organic fluorescent molecules adjacent to metal films has been reported.…”

Section: Introductionmentioning

confidence: 99%

Humidity Adsorption and Surface Plasmon Excitation of Poly(vinyl alcohol) Films with Fluorescent Microspheres

Kobayashi

Fukushima

Baba

et al. 2008

jjap

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A 6-dimensional grand unified theory with the compact space having the topology of a real projective plane, i.e., a 2-sphere with opposite points identified, is considered. The space is locally flat except for two conical singularities where the curvature is concentrated. One supersymmetry is preserved in the effective 4d theory. The unified gauge symmetry, for example SU(5) , is broken only by the non-trivial global topology. In contrast to the Hosotani mechanism, no adjoint Wilson-line modulus associated with this breaking appears. Since, locally, SU(5) remains a good symmetry everywhere, no UV-sensitive threshold corrections arise and SU(5)-violating local operators are forbidden. Doublettriplet splitting can be addressed in the context of a 6d N = 2 super Yang-Mills theory with gauge group SU(6). If this symmetry is first broken to SU(5) at a fixed point and then further reduced to the standard model group in the above non-local way, the two light Higgs doublets of the MSSM are predicted by the group-theoretical and geometrical structure of the model.

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Development and optimization of porphyrin gas sensing LB films

Richardson

Dooling

Jones

et al. 2005

Advances in Colloid and Interface Science

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Evaluation of Structure and Gas Response in Porphyrin Langmuir-Blodgett Films by Attenuated Total Reflection Measurements

Cited by 9 publications

References 6 publications

Humidity Sensing Using Surface Plasmon Excitation in Fluorescent Microsphere Films

Humidity Sensing Using Surface Plasmon Excitation in Fluorescent Microsphere Films

Humidity Adsorption and Surface Plasmon Excitation of Poly(vinyl alcohol) Films with Fluorescent Microspheres

Development and optimization of porphyrin gas sensing LB films

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