From 8f0a6d32ef488b2086e9cfd8e7cb2dbe81f6ab9d Mon Sep 17 00:00:00 2001 From: chn Date: Mon, 26 May 2025 17:38:00 +0800 Subject: [PATCH] --- test-typst/section/perfect/non-polar/default.typ | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/test-typst/section/perfect/non-polar/default.typ b/test-typst/section/perfect/non-polar/default.typ index f3b1ad1..8752323 100644 --- a/test-typst/section/perfect/non-polar/default.typ +++ b/test-typst/section/perfect/non-polar/default.typ @@ -63,14 +63,15 @@ The E#sub[1] mode calculated at 746.91 cm#super[-1] (mode 7) are predicted to have much weaker Raman intensities and are located close to the most intense mode (mode 8), making them indistinguishable in experimental spectra. Additionally, the A#sub[1] mode calculated at 812.87 cm#super[-1] (mode 10) - exhibits very weak Raman intensity in the configuration polarized in the basal-plane (xx and yy, only 0.01) - but an observable intensity in the configuration polarized along z-axis (1.78). + exhibits a very weak Raman intensity in the basal-plane polarized configurations (xx and yy, only 0.01) + but shows an observable intensity when the polarization is along the z-axis (1.78). Since most Raman experiments are performed in a back-scattering configuration with light incident along the z-direction - (polarized in-plane) - with photon energies much lower than the band gap, - this mode is generally not observed (cite). -However, it should become detectable when the incident light have z-direction polarization part (as in our experiment) - or when the incident light wavelength is near resonance conditions (cite). + (i.e., with in-plane polarization) + and with photon energies much lower than the band gap, + this mode is typically not observed (cite). +However, it should become detectable if the incident light has a polarization component along the z-direction + (as in our experiment), + or when the excitation wavelength approaches resonance conditions (cite). Besides, there are other peeks in the experiment. The peek at 796 and 980 are caused by strong-polar phonons which will be discussed later.