Refractive Index Dispersion of Hexagonal Boron Nitride in the Visible and Near‐Infrared. Issue 6 (26th October 2018)

• Record Type: Journal Article
• Authors: Lee, Seong‐Yeon; Jeong, Tae‐Young; Jung, Suyong; Yee, Ki‐Ju
• Other Names: Ruffenach Sandra guestEditor.; Tchernycheva Maria guestEditor.
• Is Part Of: Physica status solidi. Volume 256:Issue 6(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-10-26
• Subjects: hexagonal boron nitride -- refractive index dispersion -- single oscillator model; Solid state physics -- Periodicals; Solids -- Periodicals; Atomic structure -- Periodicals; 530.41
• DOI: 10.1002/pssb.201800417
• Languages: English
• ISSNs: 0370-1972

Abstract

Abstract : Hexagonal boron nitride (h‐BN) is being widely utilized as a platform for optical and electrical devices exploiting two‐dimensional layered materials. By analyzing transmission spectra of h‐BN flakes transferred onto quartz plates with the transfer‐matrix method, the refractive index of h‐BN is determined in the wavelength range from 450 to 1200 nm. The transmission spectra are reproduced by applying the single oscillator model of n ( λ ) 2 = 1 + Aλ 2 /( λ 2 –λ 0 2 ) as the wavelength‐dependent refractive index. Averaging over the parameters from different samples, the parameters of λ 0 = 164.4 nm and A = 3.263 are obtained. Abstract : The authors determine the refractive index of h‐BN by analyzing the transmission spectrum with the transfer‐matrix method. It is found that the refractive index dispersion follows the single oscillator model of n ( λ ) 2 = 1 + Aλ 2 /( λ 2 – λ 0 2 ) with λ 0 = 164.4 nm and A = 3.263 in the wavelength range from 450 to 1200 nm.