シミュレーションの妥当性を担保するには、解析対象に対して最適なソルバーや境界条件を選択する「論理性」が欠かせません。本ページでは、FDTDとEMEの使い分けやPDK連携の勘所、GPU計算時の注意点など、実務者が設計レビューで根拠として示せる技術資料を整理しています。理論的背景を正しく理解し、高精度な解析フローの構築に活用してください。
2023 R2 リリース以降、Lumerical FDTD は GPU 計算をサポートしています。 このページでは、Lumerical FDTD GPU ソルバーの要件と現在の制限についてまとめます。 ハードウェア要件 […]
Lumerical FDTD/MODEのブロッホ境界条件を解説。周期境界条件との違い、斜め入射の位相補正、複素数値場による計算コスト（メモリ・時間2倍）の影響を詳述。BFASTとの使い分けや、境界散乱を防ぐSource Angle設定など高精度解析の必須知識を網羅しています。
Lumerical MODEのバリエーショナル FDTD（VarFDTD）ソルバーは、リッジ導波路を用いたシステムからフォトニック結晶のような複雑な形状のものまで、さまざまな導波路構造における光の伝搬を効率的にシミュレートします。
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