TY - JOUR T1 - High-order harmonic generation by 800 and 1600nm pulse in a bow-tie-shaped metal nanostructure TT - تولید هارمونیک مرتبه بالا با استفاده از پالس‌های 800 و1۶۰۰ نانومتر در حضور نانوساختار فلزی پاپیونی شکل JF - opsi JO - opsi VL - 23 IS - 0 UR - http://opsi.ir/article-1-1415-en.html Y1 - 2017 SP - 1 EP - 4 KW - High Harmonic generation (HHG) KW - two color laser field KW - bow-tie-shaped metal nanostructure N2 - We demonstrate systematic investigations of high-order-harmonic generation resulting from the interaction of hydrogen gases with localized surface plasmons. These plasmonic near-fields are produced when a bow-tie-shaped metal nanostructure is subject to an intense two-color laser pulse. By changing the relative phase and relative intensities, cut-off frequency will be controlled in high-order harmonic spectrum. The results show that the maximum cutoff frequency pulse can be observed by using a half-harmonic control pulse with a same relative strength and phase shift relative to the fundamental pulse. M3 ER -