Abstract
Strong temperature dependence of anti-Stokes luminescence intensity from Rhodamine 101 is used to probe local temperature variation at a surface region in the attenuated total reflection geometry (ATR), when heating with laser light. In this method, the measured region can be limited by observing evanescent luminescence. The near-field depth (penetration depth) was changed by the observation angle θout of the evanescent luminescence and the spatial temperature variation was observed.
Highlights
Local Temperature Variation Measurement by Anti-Stokes Luminescence in Attenuated Total Reflection Geometry
ޫֶܥΛਤ 1(a) ʹࣔ͢ɻ৭ૉʹ ͍ڧAS ͕ޫܬੜ͡Δ Rhodamine 101 Λ༻͍ͨɻ1mM ͷΤ λϊʔϧ༹ӷͱͯ͠༻͍ɺ༹ӷηϧΛͬͯΎϦζϜఈ໘ʹ͢ΔΑͨ͠ɻHeNe Ϩʔβʔ (633nm) ΛΎϦζϜఈ໘ʹਨೖࣹͯ͜͠ͷ৭ૉΛྭͨ͠ىɻAS ޫܬྟք֯ΑΓେ͖ͳ֯ํ Ͱݕग़ͨ͠ɻྭޫىΛऔΓআͨ͘Ί 633nm ͷϊονθΟϧλʔΛ௨ͯ͠ɺޫθΝΠόʔͰޫث ʹૹΓɺྫྷ٫ CCD ΧϝϥΛͬͯ AS ޫܬεπΫτϧΛ؍ଌͨ͠ɻ৭ૉͷՃʹɺ 532nm ͷ Nd:YAG ϨʔβʔΛ༻͍ͨɻྟք֯Ҏ্Ͱ 532nm ͷޫΛ 5 ඵؒরࣹͯ͠ɺͦͷاٴऩΑΓ ৭ૉΛՃ͠ɺͦͷલޙͷԹมԽΑΔ AS ڧޫܬͷҧΛଌఆͨ͠ɻ؍ଌ͢Δ AS ޫܬͷ์ ࣹ֯ θoutґଘͯ͠৵ೖ dNFมΘΓɺ؍ଌྖҬΛมΔͱͰΔɻ ώʔλʔΛ༻͍ͯԹΛ্ঢͨ͠ͱͷޫܬεπΫτϧΛਤ 1(b) ʹࣔ͢ɻ633nm ͷྭޫىΑΓ ଆͷϋονͷ෦͕ AS ͋ͰޫܬΔɻԹ͕ߴͳΔͱ AS ͳߴڧޫܬΔͱΘ Δɻਤ 1(c) ʹ 532nm ͷ Nd:YAG ϨʔβʔΛ༻͍ͯɺ5 ඵؒޫΛরࣹ͠ɺͦͷલޙͷԹมԽ ͷൺ η ͷ dNF ґଘੑΛࣔ͢ɻη ͷ dNFେ͖͍ ́ͲɺޫরࣹʹΑΔԹͷ্ঢେ͖͍ɻΎϦζϜ ఈ໘ʹۙ ́ͲɺAS ޫܬͷมԽେ͖͘ɺΎϦζϜఈ໘͔ΒΕͯ͘ʹैͬͯมԽྔ͕খͳΔͱ؍ଌͰͨɻ
ਤ 1: (a) ޫֶஔ (b) ޫܬεπΫτϧͷԹґଘੑ (c)AS ڧޫܬൺ η ͷ৵ೖ dNF ґଘੑ
Summary
Local Temperature Variation Measurement by Anti-Stokes Luminescence in Attenuated Total Reflection Geometry
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