Laser beam power attenuation characteristics for pure polyethylene oxide polymer with different thickness

Abstract

This paper reports experimental investigations of the effects of various parameters on visible laser beam attenuation characteristics for organic pure polyethylene oxide (PEO) thin films. The pure PEO thin films with various thicknesses were prepared using the solution casting method. The attenuation characteristics of the prepared pure PEO were investigated using diode pumped solid state (DPSS) laser (with wavelength 532 nm), and He–Ne laser (with wavelength 632.8 nm). For both laser systems the influences of different control parameters (including linear, circular polarization states of the laser output, the separation distance between the thin films and the optical detector, and the laser beam incidence angle on thin films) on laser beam power attenuation were obtained. The DPSS laser beam output power with linear polarization has greater attenuation characteristics than other control parameters used in this work.