Degenerate two-beam coupling polarization properties in nonlinear materials

M. Sylla; G. Rivoire

doi:10.1364/JOSAB.18.001612

Journal of the Optical Society of America B
Vol. 18,
Issue 11,
pp. 1612-1619
(2001)
•https://doi.org/10.1364/JOSAB.18.001612

Degenerate two-beam coupling polarization properties in nonlinear materials

M. Sylla and G. Rivoire

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M. Sylla and G. Rivoire, "Degenerate two-beam coupling polarization properties in nonlinear materials," J. Opt. Soc. Am. B 18, 1612-1619 (2001)

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Abstract

The nonlinear transmission change of a weak beam in the presence of an intense beam is measured and analyzed in various absorbing and scattering materials. Simultaneous contributions of different nonlinear processes are identified. Addition of the nonlinear refractive-index change and Rayleigh-wing scattering contributions yields particularly large transmission changes.

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Material	$Re (χ_{xxxx}^{〈 3 〉})$ [esu]	$Im (χ_{xxxx}^{〈 3 〉})$ [esu]
${CS}_{2}$	$+ 6.8 \times 10^{- 13}$ c	0
BGO	$< 2 \times 10^{- 15}$ d	$2.5 \times 10^{- 13}$ a
ZnSe	$- 5 \times 10^{- 12}$ e	$8.5 \times 10^{- 13}$ b
$C_{6} H_{5} {NO}_{2}$	$1.3 \times 10^{- 13}$ c	$0.86 \times 10^{- 13}$ b

$I_{10} [MW {cm}^{- 2}]$	200	400	800	1200
$A$	0	0	0.35	0.45
$R$	0.23	0..4	0.43	0.45

Values of $R$	Polarization		Combinations
Values of $R$	xx	xy	cs	co
This study	1	0.7	⩽0.2	1.2
Ref. 5	1	0.7	0.25	1.3

	Polarization		Combinations
Parameter	xx	xy	cs	co
$R$ (absolute value)	0.21	0.15	0.07	0.23
$R / R_{xx}$	1	0.7	0.3	1.1
$H$ (Absolute value)	0.04	0.5	0	0.79
$H / H_{co}$	0.05	0.63	0	1
$A$	0.23	0.56	0.20	0.52
RWS gain $g$ at $Ω = 0$	0	0	0	0
$g_{max}$ at $Ω_{max} \approx 1 / τ_{R}$	0	0.7	0	1
Phase retardation ρ at Ω = 0	0	0	0	6
ρ at $Ω_{max} \approx 1 / τ_{R}$	0	$\frac{3 \sqrt{3}}{2}$	0	3

Material	$Re (χ_{xxxx}^{〈 3 〉})$ [esu]	$Im (χ_{xxxx}^{〈 3 〉})$ [esu]
${CS}_{2}$	$+ 6.8 \times 10^{- 13}$ c	0
BGO	$< 2 \times 10^{- 15}$ d	$2.5 \times 10^{- 13}$ a
ZnSe	$- 5 \times 10^{- 12}$ e	$8.5 \times 10^{- 13}$ b
$C_{6} H_{5} {NO}_{2}$	$1.3 \times 10^{- 13}$ c	$0.86 \times 10^{- 13}$ b

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Equations (17)

Journal of the Optical Society of America B