Microstructures in Polymer Fibres for Optical Fibres, THz Waveguides, and Fibre-Based Metamaterials

Table 2

Comparison of PMMA and silica material properties.

Property	PMMA	Silica
Young’s modulus	3.2 GPa	72 GPa
Elastic limit	<10%	~1%
Thermal expansion coefficient	9 × 10^−5	5.5 × 10^−7
Thermo-optic coefficient	−1.1 × 10^−4	9.2 × 10^−6

Data were taken from [4].