Third-Order Nonlinear Optical Properties and Reverse Saturable Absorption in 2,3-Butanedione Dihydrazone Using z-Scan Technique |
| V. Singha,b, P. Aghamkarc and B. Lald
aDepartment of Applied Physics, Guru Jambheshwar University of Science and Technology, Hisar-125001, Haryana, India bDepartment of Applied Science, N.C. College of Engineering, Israna, Panipat-132107, Haryana, India cDepartment of Physics, Chaudhary Devi Lal University, Sirsa-125055, Haryana, India dDepartment of Applied Science, Government Polytechnic for Women, Sirsa-125055, Haryana, India |
| Received: January 21, 2012; In final form: December 20, 2012 |
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| Using chemical route a 2,3-butanedione dihydrazone (BDDH) compound was prepared. The third-order nonlinear optical properties of BDDH were investigated by using single beam z-scan technique with Q-switched, frequency doubled Nd:YAG laser (λ = 532 nm) at 5 ns pulse. Effect of excitation intensity on nonlinear optical properties has been studied and found that experimental and computed values are well in agreement. Also, we found the measured nonlinear optical coefficients are nearly ten times larger than the reported. The excited state absorption cross-section of BDDH was found to be larger than that of the ground state absorption cross-section, indicating the reverse saturable absorption. |
DOI: 10.12693/APhysPolA.123.39 PACS numbers: 42.65.-k, 42.70.Mp, 42.70.Nq |