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معلومات ثقافية، معلومات علمية

ما هو الليزر، وما أنواعه؟

05 فبراير 2013

الليزر ( LASER وهي اختصار لعبارة Light Amplification by Stimulated Emission of Radiation أي تضخيم الضوء بانبعاث الإشعاع المحفز)
هو اشعاع كهرومغناطيسي تكون فوتوناته مساوية في التردد ومتتطابقة الطور الموجي حيث تتداخل تداخلا بناءً بين موجاتها لتتحول إلى نبضة ضوئية ذات طاقة عالية وشديدة التماسك زمانيا ومكانيا ذات زاوية انفراج صغيرة جدا وهو مالم يمكن تحقيقه باستخدام تقنيات أخرى غير تحفيز الاشعاع.

أنواع الليزر

ليزر الغاز (CO2 ثاني أكسيد الكربون ,Excimer LASER)
ليزر السائل
ليزر اشباه الموصلات (ليزر شبه الموصلات)
ليزر الحالة الصلبة (نيوديميوم ياغ Neodymium-YAG LASER

معلومات ثقافية، معلومات علمية

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