Optical characterization of NaBi(MoO4)2 crystal by spectroscopic ellipsometry

Guler I., Isik M., HASANLI N.

Applied Physics A: Materials Science and Processing, vol.130, no.9, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 130 Issue: 9
  • Publication Date: 2024
  • Doi Number: 10.1007/s00339-024-07771-6
  • Journal Name: Applied Physics A: Materials Science and Processing
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex
  • Keywords: Double tungstates, Ellipsometry, NaBi(MoO4)2, NaBi(WO4)2, Optical properties
  • Middle East Technical University Affiliated: Yes

Abstract

The compound NaBi(MoO4)2 has garnered significant interest in optoelectronic fields. This study employs spectroscopic ellipsometry to thoroughly examine the linear and nonlinear optical characteristics of NaBi(MoO4)2 crystals, offering detailed insights into their optical behavior. Our investigation presents a precise method for discerning the crystal’s spectral features, revealing the spectral variations of key optical parameters such as refractive index, extinction coefficient, dielectric function, and absorption coefficient within the 1.2-5.0 eV range. Through analysis, we determined optical attributes including bandgap energy, critical point energy, and single oscillator parameters. Additionally, we explored the nonlinear optical properties of NaBi(MoO4)2, unveiling potential applications such as optoelectronic devices, frequency conversion, and optical sensors. This study enhances comprehension of optical properties of NaBi(MoO4)2, underscoring its significance in future optical and electronic advancements.