Development of a desktop-sized thermal lens microscope

超高感度かつはん用性の高い，デスクトップサイズの熱レンズ顕微鏡（DT-TLM）を開発した．光学系の単純化と最適化によって，DT-TLMの操作性は従来の大型TLMに比較して大きく向上した．非蛍光性の色素分子（Sunset Yellow）水溶液を用いて性能評価したところ，色素分子濃度1×10－8～1×10－7 Mの範囲で良好な直線関係を示した．検量線の標準偏差（2σ）から定量下限値は1.10×10－8 M，S/N比（＝2）から検出下限値は8.27×10－9 Mとそれぞれ見積もられた．これらの結果は大型TLMとほぼ同等の値であった．

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