Light scattering experiments on silver films of different roughness using surface plasmon excitation

Hornauer, D.-L.

doi:10.1016/0030-4018(76)90054-7

Cited by 62 publications

(12 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From nominally smooth films the distribution is widely varying . Deliberate roughening of the surface with a CaF 2 underlayer, as well as enhancing the output, gives a fairly reproducible lobe in the reverse direction from that of the exciting beam [6,10] .…”

Section: Introductionmentioning

confidence: 96%

“…The intensity and angular distribution of the radiation is known from a large number of studies to reflect the nature of the surface roughness [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] . It is well established in general that roughness features act as dipoles and give rise to radiation polarized with the electric field vector in the plane of emission [2] though there have been difficulties in reproducibility of detail and consequent discrepancies in interpretation .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Interplay of CaF₂

Ferguson

Dawson

Walmsley

1993

Journal of Modern Optics

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Interplay of CaF₂

Ferguson

Dawson

Walmsley

1993

Journal of Modern Optics

View full text Add to dashboard Cite

“…Rough calcium fluoride has been used extensively as a substrate to create rough metallic surfaces that have been studied using surface plasmon techniques [1][2][3][4][5]. Several of those studies have investigated how the roughness of the metallic surface changes with different thicknesses of CaF 2 [3,4,6].…”

Section: Introductionmentioning

confidence: 99%

Statistical characterization of thermally evaporated roughCaF2films

Luhman

Hallock

2004

Phys. Rev. E

View full text Add to dashboard Cite

Thermal deposition of CaF2 onto a glass substrate creates a nanoscale rough surface. A series of samples with differing nominal CaF2 film thicknesses have been fabricated, and the topography has been investigated using atomic force microscopy. Measured values for the statistical characterization of the samples are presented including the exponents describing the scaling behavior of the surfaces. We find that the roughness exponent alpha=0.88+/-0.03 , the growth exponent beta=0.75+/-0.03 , and the dynamical exponent z=alpha/beta=1.17+/-0.06 . We also measure the multifractal spectra and nearest neighbor height difference probability distribution. The results are consistent with noise dominated by a power-law distribution with exponent mu+1 approximately equal to 4.6. Profilometer measurements were used to determine the porosity phi of the deposited films, which we find to be constant for all film thicknesses with phi approximately 0.46 .

show abstract

“…Since the active material layers employed in our device structures have strong absorption peaks in the range of wavelengths we are considering, Stokes reversibility relations were not used in the calculation of the individual matrix elements. Indices of refraction and extinction coecients for Ag [76,77] and CuPc [8] were obtained from literature, while those for C 60 and BCP were measured by spectroscopic ellipsometry. We used standard plane wave analysis to analyze the electric and magnetic elds in the multilayer structure.…”

Section: Energy Transfer Via Guided Modesmentioning

confidence: 99%

“…We modeled surface roughness applying the method of Hornauer [77] as a perturbation of the permittivity of a 'smooth' silver lm. We have measured rms roughness parameters by atomic force microscopy for the scattering silver lms to be ∼ 1.5 nm and adjust the index of refraction n and extinction coecient k in accordance with Hornauer, yielding n = 0.14 and k = 2.56, signicantly broadening the reectivity dip and shifting the resonance to higher momentum.…”

Section: Energy Transfer Via Guided Modesmentioning

confidence: 99%

The Application of Photosynthetic Materials and Architectures to Solar Cells

Mapel

Baldo

2006

Nanostructured Materials for Solar Energy Conversion

View full text Add to dashboard Cite

Photosynthetic approaches to redesigning photovoltaics (PV) oer an attractive route towards achieving high-eciency, low-cost solar energy transduction. This thesis explores two routes toward this end: the direct integration of photosynthetic structures into solid-state devices and the architectural redesign of organic solar cells to more closely parallel photosynthesis.The highly ecient photosynthetic reaction center is the site of exciton dissociation in photosynthesis, analogous to the role of the donor-acceptor interface in organic PV. This thesis describes the successful integration of reaction centers with organic semiconductors into solid-state devices. Although functional, we nd that these devices suer the same limitation as the more traditional organic PV: the ability to absorb enough light.Photosynthetic bacteria and plants compartmentalize the processes leading to light energy conversion. This spatial separation of structures augments the evolutionary design space: the processes of photon absorption and exciton dissociation occur in two separate locations, allowing the independent functional optimization of each. Applying a similar approach to PV would similarly remove the need for multifunctional materials, bypassing limiting tradeos and permitting the utilization of new material systems. To this end, I propose a novel architecture and present initial conclusions on theoretical performance eciency. Fabricated devices demonstrate the system is viable and suggests that further improvements in device design will enable highly ecient photovoltaics.

show abstract

Light scattering experiments on silver films of different roughness using surface plasmon excitation

Cited by 62 publications

References 8 publications

Interplay of CaF₂

Interplay of CaF₂

Statistical characterization of thermally evaporated roughCaF2films

The Application of Photosynthetic Materials and Architectures to Solar Cells

Contact Info

Product

Resources

About

Light scattering experiments on silver films of different roughness using surface plasmon excitation

Cited by 62 publications

References 8 publications

Interplay of CaF2

Interplay of CaF2

Statistical characterization of thermally evaporated roughCaF2films

The Application of Photosynthetic Materials and Architectures to Solar Cells

Contact Info

Product

Resources

About

Interplay of CaF₂

Interplay of CaF₂