TY - JOUR JF - opsi JO - ICOP & ICPET _ INPC _ ICOFS VL - 23 IS - 0 PY - 2017 Y1 - 2017/2/01 TI - Two photon Absorption of femtosecond pulses in the LEDs and Manufactureing of an Autocorrelator Based on TPA (Two Photon Absorption) TT - جذب دوفوتونی تپ‌های فمتوثانیه در LED و ساخت خودهمبسته‌ساز بر مبنای TPA (Two Photon Absorption) N2 - Two Photon Absorption (TPA) of femto-second pulses in the red and amber LEDs has been investigated experimentally. Quadratic variation of the LED current with respect to the laser intensity has been observed. Finally, the pulse duration of the 30 fs Ti:Sapphire laser has been measured with construction of a second-order autocorrelator based on TPA in the LED. SP - 593 EP - 596 AU - Malekmohamadi, Sedighe AU - mousavi, Mahdi AU - Naghdi, Elham AU - Yahyaei, Bahareh AU - Bayari, Ali AU - Ajoodanian, moin AU - Mojtaba, Alireza AU - Shiri, Ali AD - KW - Interferometric Autocorrelator KW - Two Photon Absorption UR - http://opsi.ir/article-1-1155-en.html ER -