Added optika.materials.AbstractLayer.layer_sequence property.

optika/materials/_layers.py

@@ -39,6 +39,13 @@ def thickness(self) -> u.Quantity | na.AbstractScalar:
     def _thickness_plot(self) -> u.Quantity | na.AbstractScalar:
         """The thickness of the layer when plotted."""
 
+    @property
+    @abc.abstractmethod
+    def layer_sequence(self) -> LayerSequence:
+        """
+        This object interpreted as an instance of :class:`LayerSequence`.
+        """
+
     @abc.abstractmethod
     def transfer(
         self,
@@ -180,6 +187,10 @@ def n(
         else:
             return self._chemical.n(wavelength)
 
+    @property
+    def layer_sequence(self) -> LayerSequence:
+        return LayerSequence([self])
+
     def transfer(
         self,
         wavelength: u.Quantity | na.AbstractScalar,
@@ -382,6 +393,10 @@ def thickness(self) -> u.Quantity | na.AbstractScalar:
     def _thickness_plot(self) -> u.Quantity | na.AbstractScalar:
         return self.thickness
 
+    @property
+    def layer_sequence(self) -> LayerSequence:
+        return self
+
     def transfer(
         self,
         wavelength: u.Quantity | na.AbstractScalar,
@@ -493,6 +508,10 @@ def thickness(self) -> u.Quantity | na.AbstractScalar:
     def _thickness_plot(self) -> u.Quantity | na.AbstractScalar:
         return LayerSequence(self.layers).thickness
 
+    @property
+    def layer_sequence(self) -> LayerSequence:
+        return LayerSequence(self.layers * self.num_periods)
+
     def transfer(
         self,
         wavelength: u.Quantity | na.AbstractScalar,

optika/materials/_tests/test_layers.py

@@ -18,6 +18,15 @@ def test_thickness(
         result = a.thickness
         assert np.all(result >= 0 * u.nm)
 
+    def test_layer_sequence(
+        self,
+        a: optika.materials.AbstractLayer,
+    ):
+        result = a.layer_sequence
+        assert isinstance(result, optika.materials.LayerSequence)
+        for layer in result.layers:
+            assert isinstance(layer, optika.materials.AbstractLayer)
+
     @pytest.mark.parametrize(
         argnames="wavelength",
         argvalues=[