正入射侧入射移动

paper/method/experiment/default.typ

@@ -57,4 +57,26 @@ todo
 
 散射光路对不同偏振的响应不同，因此需要乘以一个系数。
 
-探索：为什么对于A1的拟合，结果会差两倍？
+探索：为什么对于A1的拟合，结果会差两倍？
+
+E#sub[1]-1 模式在正入射拉曼实验中被观察到尽管在理论上是不允许的，这被认为是因为入射光并非完全沿c轴入射。
+如图所示，由于非零的数值孔径，激光汇聚到样品上时存在一个锥形角度（不完全平行于c轴），使得 E#sub[1]-1 模式在正入射中总是可见的。
+由于衬底斜切（沿着x方向），对于 zxxz 和 zxyz 配置，入射光或散射光的偏振将具有更多的 z 分量，从而使 E#sub[1]-1 模式的强度增加。
+通过略微倾斜衬底可以补偿斜切导致的效应，如附图所示。
+同时，此对比也可以验证衬底斜切的方向。
+
+Two effects beyond ideal theoretical prediction were observed experimentally,
+  including minor but observable peak shifts of negligible-polar phonons between different incidence configurations,
+  and the observability of the E#sub[1]-1 mode in normal incidence Raman experiments.
+The peak shifts were considered caused by the non-zero wavevector lengths of phonons.
+In our calculations, compared to normal incidence,
+  the E#sub[2]-3 mode's frequency remained nearly unchanged,
+  while the E#sub[2]-1, E#sub[2]-2, A#sub[1]-1 modes exhibited minor but observable shifts.
+The experimental results were in good agreement with our calculations, as shown in figure and table.
+The visibility of the E#sub[1]-1 mode in normal incidence Raman experiments were attributed to the fact that
+  the incident light was not perfectly aligned along the z-axis,
+  due to the substrate's slight tilt and the converging angle of the confocal setup.
+This was confirmed by the results under different polarization configurations and different tilt angles,
+  as shown in figure.
+
+#include "figure-e1.typ"

paper/result/perfect/non-polar/default.typ

@@ -87,31 +87,20 @@ Our experiments reported the E#sub[1]-2 peak for the first time,
 
 #include "figure-raman.typ"
 
-E#sub[1]-1 模式在正入射中可见。
+不同入射方向下有微小移动。
 
-E#sub[1]-1 模式在正入射拉曼实验中被观察到尽管在理论上是不允许的，这被认为是因为入射光并非完全沿c轴入射。
+为了检验我们实验和计算的准确性，我们测量和计算了不同入射方向下弱极性峰位的微小移动。
-如图所示，由于非零的数值孔径，激光汇聚到样品上时存在一个锥形角度（不完全平行于c轴），使得 E#sub[1]-1 模式在正入射中总是可见的。
-由于衬底斜切（沿着x方向），对于 zxxz 和 zxyz 配置，入射光或散射光的偏振将具有更多的 z 分量，从而使 E#sub[1]-1 模式的强度增加。
-通过略微倾斜衬底可以补偿斜切导致的效应，如附图所示。
-
-不同入射方向下弱极性峰位的微小移动被观察到，这是由于非零波矢长度的声子引起的。
 在我们的计算中，从正入射到肩入射，E2-3的峰位几乎不变，E2-1与A1-1会有可观测的蓝移，同时E2-2会有可观测的红移。
 实验结果与计算结果基本一致，如图如表所示。
 
-Some effects absent in previous theory were observed experimentally,
+To further validate the accuracy of our experiments and calculations,
-  including minor but observable peak shifts of negligible-polar phonons between different incidence configurations,
+  we measured and calculated the peak shifts of negligible-polar phonons
-  and the observability of the E#sub[1]-1 mode in normal incidence Raman experiments.
+  under different incidence configurations.
-The peak shifts were considered caused by the non-zero wavevector lengths of phonons.
+In our calculations, comparing with normal incidence,
-In our calculations, compared to normal incidence,
+  the E#sub[2]-3 peek remained nearly unchanged under edge incidence (only shifted about 0.004 cm#super[-1]),
-  the E#sub[2]-3 mode's frequency remained nearly unchanged,
+  thus we use it as a reference to calibrate other peak positions.
-  while the E#sub[2]-1, E#sub[2]-2, A#sub[1]-1 modes exhibited minor but observable shifts.
+The E#sub[2]-1, E#sub[2]-2, and A#sub[1]-1 modes exhibited observable shifts,
-The experimental results were in good agreement with our calculations, as shown in figure and table.
+  and the experimental results were in good agreement with our calculations, as shown in figure and table.
-The visibility of the E#sub[1]-1 mode in normal incidence Raman experiments were attributed to the fact that
+Our results further confirmed the accuracy of both our experiments and calculations.
-  the incident light was not perfectly aligned along the z-axis,
-  due to the substrate's slight tilt and the converging angle of the confocal setup.
-This was confirmed by the results under different polarization configurations and different tilt angles,
-  as shown in figure.
 
 #include "figure-nopo-diff.typ"
-
-#include "figure-e1.typ"

paper/result/perfect/non-polar/figure-nopo-diff.typ

@@ -1,12 +1,7 @@
 #figure(
-  image("/画图/弱极性不同方向偏移/embed.svg"),
+  image("/画图/弱极性不同方向偏移/拉曼.svg"),
   caption: [
-    (a) Phonon dispersion of 4H-SiC along the A–#sym.Gamma–K high-symmetry path.
+    Frequency shifts of negligible-polar phonon modes under different incidence configurations.
-      Gray lines represent negligible-polar phonon modes,
-      while colored lines indicate strong-polar phonon modes.
-    (b) Magnified view of the boxed region in (a).
-      The orange dashed lines mark the phonon wavevectors involved in Raman scattering
-        with incident light along the z- and y-directions.
   ],
   placement: none
 )<fig-nopo-diff>

画图/拉曼结果拟合/README.md

@@ -55,7 +55,7 @@
 * 251019:
   * 1: 衬底侧入射 xzyx 观察 E12 离焦 0 针孔 100 积分时间 30 积分次数 10 范围 600-790 5 个点
   * 2: 正入射衬底，将zxxz稍微垫高一点的结果。垫高x方向的某个方向。先分别测试不垫高和垫高的结果，确认有明显差别后再多测试几个点。
-  * 3: 衬底正入射，离焦 0 针孔 100 积分时间 5 积分次数 10 范围 580-1050，1 是衬底，其余依次是 532 631 230 126 206 取 11 个点。
+  * 3: 外延层正入射，离焦 0 针孔 100 积分时间 5 积分次数 10 范围 580-1050，1 是衬底，其余依次是 532 631 230 126 206 取 11 个点。
 * 2510xx:
   * 1: 正入射衬底，将zxxz稍微垫高一点的结果。垫高x方向的某个方向。
   * 2: 外延层侧入射。