Scholarlink

<p>The study aims to determine the characteristics of the change in the polarization angle of light in olive oil when combined with the gold colloid. The research uses natural polarization methods and laser light sources with wavelengths of 405&#xa0;nm, 532&#xa0;nm, and 650&#xa0;nm. We synthesized colloidal gold at concentrations of 10 ppm, 20 ppm, 30 ppm, and 40 ppm using laser ablation methods. Gold nanoparticles have active optical properties, which are shown by non-linear graphic patterns due to the influence of asymmetric molecules. The 532&#xa0;nm wavelength laser produces the greatest polarization change because its wavelength are close to the peak of gold colloid absorption. The electrons on the surface of the gold nanoparticles will resonate with the frequency of laser light reinforcing the local electrical field thus producing greater polarization. The colloidal polarization of gold increases significantly at concentrations of 1 to 5 ppm and tends to be linear at 10 to 40 ppm. The addition of gold colloids at a concentration of 30 ppm produces an amplifier of more than 100%, so it can be considered a desired target amplifier. This means that at these concentrations, gold colloids have been effective in enhancing the optical properties of olive oil. The addition of colloidal gold does not alter the polarization characteristics of olive oil at 405 and 532&#xa0;nm wavelengths. Meanwhile, the loss of olive oil characteristics and the inability to maintain patterns useful for trace detection make the use of 650&#xa0;nm wavelengths not recommended.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Enhancement of polarization angle of olive oil using colloidal gold nanoparticles

  • 期刊论文

  • 发表日期：

    2025年12月12日

查看全文
  • Winarno,
  • Ketut Sofjan Firdausi,
  • Qidir Maulana Binu Soesanto,
  • Ali Khumaeni

摘要

The study aims to determine the characteristics of the change in the polarization angle of light in olive oil when combined with the gold colloid. The research uses natural polarization methods and laser light sources with wavelengths of 405 nm, 532 nm, and 650 nm. We synthesized colloidal gold at concentrations of 10 ppm, 20 ppm, 30 ppm, and 40 ppm using laser ablation methods. Gold nanoparticles have active optical properties, which are shown by non-linear graphic patterns due to the influence of asymmetric molecules. The 532 nm wavelength laser produces the greatest polarization change because its wavelength are close to the peak of gold colloid absorption. The electrons on the surface of the gold nanoparticles will resonate with the frequency of laser light reinforcing the local electrical field thus producing greater polarization. The colloidal polarization of gold increases significantly at concentrations of 1 to 5 ppm and tends to be linear at 10 to 40 ppm. The addition of gold colloids at a concentration of 30 ppm produces an amplifier of more than 100%, so it can be considered a desired target amplifier. This means that at these concentrations, gold colloids have been effective in enhancing the optical properties of olive oil. The addition of colloidal gold does not alter the polarization characteristics of olive oil at 405 and 532 nm wavelengths. Meanwhile, the loss of olive oil characteristics and the inability to maintain patterns useful for trace detection make the use of 650 nm wavelengths not recommended.