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add Structure.background_medium
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@tylerflex
tylerflex committed Nov 13, 2024
1 parent 2156051 commit 3c5d54b
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Showing 6 changed files with 120 additions and 42 deletions.
1 change: 1 addition & 0 deletions CHANGELOG.md
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Expand Up @@ -19,6 +19,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
- `CustomMedium` design regions require far less data when performing inverse design by reducing adjoint field monitor size for dims with one pixel.
- Calling `.values` on `DataArray` no longer raises a `DeprecationWarning` during automatic differentiation.
- Minimum number of PML layers set to 6.
- `Structure.background_permittivity : float` for specifying background medium for shape differentiation deprecated in favor of `Structure.background_medium : Medium` for more generality.

### Fixed
- Regression in local field projection leading to incorrect results for `far_field_approx=True`.
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72 changes: 36 additions & 36 deletions tests/sims/simulation_sample.json
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Expand Up @@ -41,7 +41,7 @@
"length": 1.0
},
"name": "traced_dieletric_cylinder",
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -73,7 +73,7 @@
]
},
"name": "traced_dieletric_box",
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -117,7 +117,7 @@
]
},
"name": "traced custom polyslab",
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -152,7 +152,7 @@
]
},
"name": "dieletric_box",
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -184,7 +184,7 @@
]
},
"name": "lossy_box",
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -212,7 +212,7 @@
]
},
"name": "sellmeier_sphere",
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -252,7 +252,7 @@
]
},
"name": "lorentz_box",
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -290,7 +290,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -322,7 +322,7 @@
}
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -359,7 +359,7 @@
]
},
"name": "drude_box",
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -396,7 +396,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -472,7 +472,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -522,7 +522,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -592,7 +592,7 @@
]
},
"name": "pec_group",
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -622,7 +622,7 @@
"length": 2.0
},
"name": "anisotopic_cylinder",
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -700,7 +700,7 @@
]
},
"name": "pole_slab",
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -743,7 +743,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -778,7 +778,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -817,7 +817,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -857,7 +857,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -896,7 +896,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -935,7 +935,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -973,7 +973,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -1014,7 +1014,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -1071,7 +1071,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -1135,7 +1135,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -1192,7 +1192,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -1249,7 +1249,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -1299,7 +1299,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -1336,7 +1336,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -1414,7 +1414,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -1452,7 +1452,7 @@
}
},
"name": "dieletric_mesh",
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -1494,7 +1494,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -1545,7 +1545,7 @@
}
},
"name": "clip_operation",
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -1607,7 +1607,7 @@
]
},
"name": "transformed_box",
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
Expand Down Expand Up @@ -2842,7 +2842,7 @@
]
},
"name": null,
"background_permittivity": null,
"background_medium": null,
"type": "Structure",
"medium": {
"attrs": {},
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43 changes: 42 additions & 1 deletion tests/test_components/test_autograd.py
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Expand Up @@ -281,7 +281,7 @@ def make_structures(params: anp.ndarray) -> dict[str, td.Structure]:
size_element = td.Structure(
geometry=td.Box(center=(0, 0, 0), size=(1, size_y, 1)),
medium=med,
background_permittivity=5.0,
background_medium=5.0,
)

# custom medium with variable permittivity data
Expand Down Expand Up @@ -1710,6 +1710,47 @@ def objective(params):
g = ag.grad(objective)(params0)


def test_background_medium(log_capture):
geo = td.Box(size=(1, 1, 1), center=(0, 0, 0))
med = td.Medium(permittivity=2.0)

background_permittivity = 5.0
background_medium = td.Medium(permittivity=background_permittivity)

# nothing
s = td.Structure(
geometry=geo,
medium=med,
)

# both supplied
with pytest.raises(ValueError):
td.Structure(
geometry=geo,
medium=med,
background_permittivity=background_permittivity,
background_medium=background_medium,
)

# background medium (preferred)
s = td.Structure(
geometry=geo,
medium=med,
background_medium=background_medium,
)

# background medium (preferred)
with AssertLogLevel(log_capture, "WARNING"): # , contains_str="deprecated"):
s_warn = td.Structure(
geometry=geo,
medium=med,
background_permittivity=background_permittivity,
)

assert s_warn.background_medium is not None
assert s_warn.background_medium.permittivity == background_permittivity


class TestTidyArrayBox:
def test_is_tidy_box(self):
da = DataArray(tracer_arr, dims=map(str, range(tracer_arr.ndim)))
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