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Table 1 The imaginary and real parts of the cubic NLO susceptibility

From: Photoinduced refractive index variation within picosecond laser pulses excitation as the indicator of oxyorthosilicates single crystals composition modification

Ranges

I t , MW/cm 2

I 0 I t

I 0 > I t

I r , MW/cm 2

I 0 < I r

I 0 > I r

FOM

Sample

 

I m ( χ (3) ),10 −12 esu

 

R e ( χ (3) ),10 −10 esu

 

LSO

92.9

4.2

0.41

68.4

0.9

−0.1

0.6

LSO:Ce

87.6

5.3

0.43

61.6

1.8

−1.0

1.4

LGSO

91.7

4.2

0.41

73.8

2.9

−2.0

1.1

LGSO:Ce

100.6

3.6

0.42

88.2

0.4

−0.6

0.3

  1. The imaginary and real parts of the cubic NLO susceptibility χ (3) estimated for different intensity ranges, the peak laser intensities magnitudes of the absorptive I t and refractive I r responses slope changes, figure of merit (FOM) for the I 0 <I r range.

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