The Infrared Properties of Gold Smoke Deposits*

Harris, Louis; Beasley, John K.

doi:10.1364/josa.42.000134

Cited by 85 publications

(16 citation statements)

References 6 publications

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“…This procedure lasted about 5 to 10 min and helped to reduce further the content of residual gases, especially oxygen which is known to lower the absorbance of the black gold layers [9]. After rinsing with nitrogen, the pressure in the chamber was adjusted to the evaporation pressure.…”

Section: Apparatusmentioning

confidence: 99%

Black gold deposits as absorbers for far infrared radiation

Becker¹,

Fettig²,

Gaymann³

et al. 1996

Physica Status Solidi (b)

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Dedicated to Professor Dr. K. W. BOER on the occasion of his 70th birthday Thermal infrared sensors with maximal sensitivity and minimal response time require radiation absorbing layers with small heat capacity and high absorbance. In the near infrared these conditions are well met by black gold layers. In order to examine the question whether black gold layers are suitable absorbers as well in the far infrared, their reflectance is measured in a wave number range from k = 14 to 650 cm-', corresponding to a range in wavelength 1 = l / k between 15 and 710 pm.The samples are prepared at various residual gas pressures. The influence of tempering o m the absorbance and the spectral absorption behavior at low temperatures is discussed. The experimental results may be accounted for by a dielectric function according to the Bergman formalism. The spectral dependence of the absorption coefficient and the real and imaginary parts of the refractive index following from it are presented.

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Section: Apparatusmentioning

confidence: 99%

Black gold deposits as absorbers for far infrared radiation

Becker¹,

Fettig²,

Gaymann³

et al. 1996

Physica Status Solidi (b)

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“…Металл на рабочей стороне пластинки должен поглощать излучение и отдавать полученное тепло кристаллу. Для увеличения погло-щения служит слой золотой «черни» 229 . При поглощении излучения тем-пература кристалла изменяется, изменяя, таким образом, его спонтанную электрическую поляризацию и связанное с последней напряжение на об-кладках кристалла.…”

Section: тепловые приемникиunclassified

Экспериментальная Техника Субмиллиметровых Волн

Shtefen¹,

Mozer²,

Kneibyul³

1969

Usp. Fiz. Nauk

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“…Pfund deposited metal-blacks on nitrocellulose films in an environment of nitrogen or air. Harris studied gold-black films from the late 1940's into the 1960's [5][6][7][8][9]. The films were prepared similarly to Pfund's (deposited on thin membranes of cellulose nitrate in a partial atmosphere of nitrogen), with emphasis on the pressure of nitrogen and the evaporation rate as prime factors determining the morphology of the films.…”

Section: Introductionmentioning

confidence: 99%

Effects of Polymer Infusion and Characteristic Length Scale on Gold-Black Long-Wave and Far-Infrared Absorbance

Cleary¹,

Peale²,

Ishigami³

et al. 2011

JMSE-A

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Infrared absorbance is investigated in gold-black, a porous nano-structured conducting film. A two level full factorial optimization study with evaporation-chamber pressure, boat current, substrate temperature, and degree of polymer infusion (for hardening) was performed. Polymer infusion was found generally to reduce absorbance in the long wave IR but has little effect at THz wavelengths, although for samples with the highest absorbance there is a slight improvement in the absorbance figure of merit (FOM) in both wavelength regimes. The characteristic length scales of the structured films vary considerably as a function of deposition parameters, but the IR FOM is found to be weakly correlated with these distributions, which are determined by wavelet analysis of scanning electron micrographs.

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The Infrared Properties of Gold Smoke Deposits*

Cited by 85 publications

References 6 publications

Black gold deposits as absorbers for far infrared radiation

Black gold deposits as absorbers for far infrared radiation

Экспериментальная Техника Субмиллиметровых Волн

Effects of Polymer Infusion and Characteristic Length Scale on Gold-Black Long-Wave and Far-Infrared Absorbance

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