SCIENTIFIC ABSTRACT PADALKA, P.G. - PADANYI, A.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001238720010-7
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: January 3, 2017
• Document Release Date: August 1, 2000
• Sequence Number: 10
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

SIDOROV, N.T9.0 kandidat tekhnicheskikh nauk; TOTSKIT, G.P., inshener;
KADU&,jA&% inzhener.
Open-hparth pig iron with reduced manganese content. Hatallurg
no.12:6-7 D '56, (KLRA 10:1)
1. Ukrainski7 nauchno-iseledovatellskiy institut metallov (for Si-
dorov). 2, Tenakiyovskiy metallurgichaskiy zavod (for Totskiy and
Padalka).
(Tonakiyevo--Blast furnaces) (Cast iron.)

AUTHMS Shiclyarevskiy, I.N. and,j~, ~alka, ~111.G.~
TITLE Measurement of the Optical Constants of Copper, Gold and Nickel in
the Infrared Region of the Speetrum (Imeraniye opticheskikh
poxt6~iiaykh medi, zolots i nikelya v infrakrasnoy oblasti. spektra)
PMODI CAL s Optika, i Spektroskopiya, 1959, Vol 6, Nr 1, pp 78-84 (USSR)
ABSTRACTs The optical constants of copper, gold and nickel were measured in the
region of 1-12 p by moans of the method deraribed by ShIclyarstysidy ot al~~
(Refs 4. 5). Messuremonts were made on a number of pairs of samples
and in each cast reproduu1bl* values of the refractive index It and the
absorption index were obtained, The results of measurements are
given in Tables 13. The seven columns of each table give the
wavelength X. the angle of incidence of 'the light 1, the number of
reflections m. the phase Shift,&, the azimuth V, the refractive index IL
and the absorption index jil. The optical constants were calculated fras
the usual formula* (9qs 6 and 6) which give IL and jil in terms of T, V
and& Thick layers of copper vere prepared by vacuum deposition on
glass plates. Measurements of the optical constants of copper were
made within five days. Control measurements carried out on freshlyt
Card 1/3 prepared samples yielded the same optical constants as the measurements

SOV/51-6-1-13/30
Measurement of the Optical Gonstants of Gopper, Gold and Nickel in the Infrared
Region of the Spectrum
carried out after five days. The affect of a layer of copper oxide
was neglected;'according to Hodgson (Ref 6) such a layer should not
affect the optical constants by more than a few per cent. The results
obtained for copper are given in Table 1 and the derived optical constants
are shown in Fig 1, where the open circles represent the authors'
results " the black dote represent those of FOrstorling and
Frooderichaz (Ref 7). Layers of gold 1.5-2 ji thick were deposited on
glass plates by vacuum deposition. No differences waris found between
optical constants derived from measurements made seven days after
evaporation and optical constants derived from measurements carried out
one month after preparation of the samples. 'rho results are given in
Table 2 and the derived optical constants are shomn in Fig 2. Again
open circles denote the present authors, results and the black dots
those of F'O'raterling and Froaderichsz (Roi 7). Thin layers of nickel
were deposited by vacuum deposition on glass plates. The results obts,"ed
are given in Table 3 and the derived optical constAnts-in Fig 3t
i0hers open circles denote the present authors' values,and triangles
show the optical constants obtained by Ingersoll (Ref 8) at 2~p.
Card 2/3

SOV/51 -6-1
Measurement of the Optical Ccnrtants cf Copper, Gold anj Nickel In the Infrared
Region of the S pe.-~trxu
Using the classical Drude thecry of free electrons in metals the
authors calcalated densities of free electr!=, relaxation times and
d.i. condoztlvitiql~ :)f' ccrpor.. ".1d, ni~~16-.el and silver. *111ey are
given in Tablo ti tx-4.0ther with raZults taken from Hodgson1s and
Beattia and Conn's -work (Ref-9 6, 10). Frciu the I-mown values of 11
ani -g.1 it is possible to calculate the value of the absorption
coeffiniont A given ~.-y
R
whero R is the roflo(,tion cooffteitat oC ilia motal. Dependence of
the abiorptlon ctooffiniont A on vevelength is given for copper, silver,
go.Ld ard air.-Lel In F:io, 7. The ordinato axis I applies to copper, gold
ani silv6r and tho ax"s I-r applias tv nickol. Acimowlodgments aro made
to Professor K.D. 3intllnikov for his advizo. There are 7 figures, 4 tablaa
and 12 referen-les, 5 of whieh are Soviet, 3 English 2 German I Dutch and
1 tram lation.
SUBHITTSD-. 11ar,.-h 2-i, 111,~
Card 3/z;

SOV/51-4-6-1,3/21
AUTBORS: SWyarevsiciy, 1.'N,, Staranov, N.G. and Padalka, V.G- _
T.T,.nl Measurement of Optical Constants of Silver in the Infrared Spectral
Region klzmeraniye optichesIdAh postoyannykh serebra v Infrakrasnoy
oblasti spektra)
FMODIUL: Optika I Spektrookopiya, 1958, Vol IV, Nr 6, pp 792-795 kUSSR)
ABSTRACT: Optical constants of metals are of great interest in the electron theory
of metals if they are measured in the frequency region which
satisfies the inequality given by Eq. I on p. 792s V02 4U402
o"
where V. is the frequency of electron collisions with the crystal
lattice and 4 is the freqaency corresponding to the upper limit of
the internal photoeffect. This frequency region lies usually in the
infrared part of the spectrum. The present paper reports measurements
of optical constants of silver in the 1-12 ts. region using the methods
described earlier kRefs 1, 2). In the first of these methods (Ref 1)
the phase difference A = d, - Cr. between the p- and a- components is
made equal to -1800 by mulplasreflection of light by two identical
samples. The apparatus used is shown in Fig 1. Here S is the exit
card 1/4 alit of a monochromator =-2; Z1, Z2" Z. and Z4 are aluminized

Measurement of Optical Constants of Silver in the Infrared Spectral Region
mirrors; P and A are a polarizer and an analyser, respectively, made
of piles of six selenium plates which are placed at an angle of the order
of 700 to the light-beam; M, and 1[Z are the samples of the studied
metal; B is a receiver. A parallel beam of monochromatic light passes
through a polarizer, which is positioned at an angle of 4:50 to the plans
of incidence. and falls at an angle f on to samples M, and M?. The
angle of incidence is chosen to make mA = -1800, vhere m is the
number of reflections from metal samples. Under these conditions the
light reflected from metal samples may be extinguished by the analyser,
Position of the analyser gives the value y' , which is related to the
azimuth of restored polarizatioa V by the relationship tan V = -
Knowing the angle of Incidence 4P, the phase difference & and the
azimuth If the optical constantn can be easily calculated. The second
method of "rotating analyser" (Ref 2) is tased on a conversloa of
eXptically polarized into circularly polarized light. The apparatus
is the same as in Fig 1. By a suitable choice of the angle of incidenr~e
for a given -wavelength, the condition mh = -900 is satisfied and the
amplitudes of the p- and a-eomponents are made equal by a suitable
Card 2/4 rotation of the polarizer. Then the light reflected frcm metal surfacea

SOV/51-4;-6-1-3/24:
Measurement of Optical Constants of Silver in taie Infrared Spectral Region
is circularly polarized. The modulated component which has passed
through the rotating Analyser disappears and the recording instrument
shows only a constant signal. The azimuth of the restored polaritation
is obtained as in the first method, 1xxt y now represents the angle
between the chief direction of the polariser and the plane of incidence
of light. From measured values of r#, a and Y the optical constants p
(refractive index) and J&)[ (absorption coefficient) are obtained. The
optical constants of silver layera produced by evaporation in vacaum
vere measured by both these methods . The rosults are shown in the
table on p. 795 whose columns give respectively the wavelength (in Ja),
the angles of incidence (#, the number of reflection m, the phase
differences -h, the azimuth V, the refractive indices ~L and the
absorption coefficients j&)L- Fig 2 compares the values of the
refractive index and the absorption coefficient (carves 1 and 2
respectively) obtained by the present authors (shown by open circles)
with those of Forsterling and Freaderickgz kRef 7, shown by black dots)
and those of Motulevich and Shubin (Ref 6 shown by half-black dots).
All these values are shown an a function of vavelength and they agree
Card -3/4 -well-with each other, except for values of the refractive index in

SOV/51-4-6-13/24
measurement of Optical Constants of Silver in the Infrared Spectral Region
the 3.5-6 ~L region reported in Rof 6. in the spectral region where
the inequality given by Eq. 1 on p. 792 is satisfied the conduction
electron donsityR is independent of the wavelength If 3 ia
'02 - .,,2 f(,~,2) which should be a
constant It follows that Lykj
r,
straight line. Such a straight line is shown in Fig 3. In the region
5-12 Ik the slope of this line given the conduction electron d&tsity
as 7.4 x 1022CM-3. The experimental points in Fig 3 in the region
1-6 p also lie on a straight line whose slope gives the conduction
electron density as 5.2 x 102'2cm-5, which is the same as the nvmbez~
of atoms of silver in 1 cm3- 'rho authors thanic K.D. Sinellnikov fv~-,
his interest and advice. There are 5 figures, 1 table and 8 referen:*i,
4 of which are Soviet, 2 English, 1 German and 1 American.
ASSOCIATION: Kharlkovskiy gosudaretvennyy universitat im. A.m. Gorlkogo
(Kh&Nov State'University imeni A.M. Gor'kiy)
SUBUITTED.- November 15, 1957
Card 4/4

24(4), 24(3) S(PI/51-6-6-9/34
1UTHORS Shklyarevskiy, 1.11. and Padalka, V.G.
TITLE The Anomalous Skin-Effect and the Optical Constants of Copper, Silver,
Gold and Nickel in the Infrared Region (Anomallnyy skin-affekt i
opticheskiye postoyannyye medi, serebra, zolota I nikelya v
infrakrasnoy oblasti SDektra)
PERIODICIU- Optika I sveLctroskopiya, 1959, Val 6, Nr 6, pp 778-770 tUSSR)
ABSTRACT: Recently the authors measured the optical constants of copper, silver,
gold and nickel at infrared wavelengths and interpreted their results
in toms of the clasGical froo-olectron theory of Drude kRefs 1, 2).
From these optical constants the authors had deduced, Inter alia, the
d.c. else-crical conductivities of these metals. These conductivities
-were found to be considerably smaller than the values obtained directly
on massive samplas . The reason for this discrepancy lies in the use
of dispersion formulae of Drude which are valid only for the normal
akin-effect, when the inequality f