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الرئيسية

ليزرات الصبغات ( Dye lasers)

ليزر الصبغات هو الليزر الذي يكون وسطه الفعال ( Active Medium ) عبارة عن سائل حيث يتم إذابة أصباغ عضوية في كحول إثيلي أو في الماء حيث ينتج ليزر ويمكن التحكم في الطول الموجي الصادر عنه ويدعى بليزر الصبغة .

تصنيف ليزرات الأصباغ :

أصباغ البوليميثان ويكون انبعاثها في المدى من 1 - 0.7 مايكروميتر .
أصباغ الكومارين يقع انبعاثها مابين 0.4 - 0.5 مايكروميتر .
أصباغ تلألؤية وتعطى انبعاثا بطول موجي 0.4 مايكروميتر .

مميزات ليزرات الصبغات :

تتميز ليزرات الصبغات بمايلي :

إمكانية الحصول على حزمة عريضة من الأطوال الموجية لليزر .
من السهل تكوين الوسط الفعال ( Active Medium ) بإذابة الصبغة في المحلول .
إمكانية تغيير تركيز الصبغة بسهولة " تركيز أو تخفيف " .
لا توجد عيوب بلورية .

تطبيقات ليزرات الصبغات :

تستخدم ليزرات الصبغات في كثير من الحقول التطبيقية ومنها أبحاث علم الأطياف والكيمياء الضوئية ، كما تستخدم في طب الأمراض الجلدية حيث تجعل لون البشرة أكثر تناسقا" حيث يسمح النطاق الواسع للأطوال الموجية الممكنة بمطابقة قريبة جدا لخطوط الإمتصاص لأنسجة معينة مثل الميلانين والهيموغلوبين ، أيضا تستخدم ليزرات الصبغات في فصل نظائر الليزر بالبخار الذري .

تعليقات

إرسال تعليق

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