What are the reflectivity and transmittance of PI gold-plated film, PET gold-plated film, and LCP gold-plated film, respectively?

Gold plated film, as a common optical thin film, is widely used in fields such as optical instruments, lasers, and fiber optic communications. Its reflectivity and transmittance are important parameters for evaluating its optical performance. This article explores through experimental measurements and theoretical analysisPI gold-plated film, PET gold-plated film, and LCP gold-plated filmThe difference in reflectivity and transmittance.

Experimental methods

The experiment used advanced optical measurement equipment to measure the reflectivity and transmittance of gold plating films on three different material substrates. The experimental conditions are room temperature, and the measurement wavelength range is 400nm-800nm.

Experimental equipment

• Spectral analyzer
• UV-Vis
• High precision reflectivity measuring instrument

sample preparation

• PI Gold Plating Film: Plating a gold film on a polyimide (PI) substrate
• PET gold plating film: plating the gold film on a polyethylene terephthalate (PET) substrate
• LCP gold plating film: plating a gold film on a liquid crystal polymer (LCP) substrate

experimental result

reflectivity

The measurement results of reflectivity show that,PI gold-plated film、 There is a significant difference in reflectivity between PET gold-plated film and LCP gold-plated film at different wavelengths.

• PI gold plating film: In the wavelength range of 400nm-800nm, the average reflectivity is 98.5%, with the highest reaching 99.2%.
• PET gold plating film: Within the same wavelength range, the average reflectivity is 97.8%, with the highest reaching 98.9%.
• LCP gold plating film: Within the same wavelength range, the average reflectivity is 98.2%, with the highest reaching 99.0%.

Transmittance

The measurement results of transmittance show that PI gold-plated film, PET gold-plated film, andLCP gold plating filmThere are significant differences in transmittance at different wavelengths.

• PI gold plating film: In the wavelength range of 400nm-800nm, the average transmittance is 0.8%, with the lowest reaching 0.5%.
• PET gold-plated film: Within the same wavelength range, the average transmittance is 1.2%, with the lowest reaching 0.9%.
• LCP gold plating film: Within the same wavelength range, the average transmittance is 1.0%, with a minimum of 0.6%.

data comparison

By comparing three different material substratesGold-plated filmThe following patterns can be observed in the reflectivity and transmittance of:

• The PI gold-plated film has the highest reflectivity and lowest transmittance, indicating its optimal performance in optical reflection.
• The reflectivity and transmittance of PET gold-plated film are both low, indicating mediocre performance in optical reflection and transmittance.
• The reflectivity and transmittance of LCP gold plating film are in the middle, indicating that it exhibits a relatively balanced performance in optical reflection and transmission.

conclusion

This article conducts experimental measurements and data analysis on the reflectivity and transmittance of PI gold-plated film, PET gold-plated film, and LCP gold-plated film, and obtains the influence of different material substrates on the optical properties of gold-plated film. Future research can further explore the influence of other material substrates on the optical properties of gold-plated films, in order to find better material combinations.

The above data is for reference only, and specific performance may vary due to production processes and product specifications.