Table 1 Polymer thickness, initial transmittance, and optical density at the writing wavelength of the prepared samples, together with the sample codes.

From: Investigating the link between a layer thickness and surface relief depth in an azo poly(ether imide)

Sample No

d (µm)

T442 (%)

OD442 (au)

PI-Az-1

0.6

45

0.35

PI-Az-2

1.1

25

0.6

PI-Az-3

1.8

11

0.95

PI-Az-4

2.7

2

1.7

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