InGaAsフォトダイオードは、近赤外光検出用のフォトダイオードです。浜松ホトニクスでは、0.5 μm～2.6 μmにおいて、さまざまな感度波長範囲をもったラインアップを用意しています。
当社独自の結晶技術により、波長5 μm帯・8 μm帯・10 μm帯で高感度を実現した検出素子です。高速応答が特長で、変化の速い温度計測、赤外線計測等に用いられます。中でも、P13243シリーズはその感度波長範囲から、炎検知に適しています。
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