نتایج جستجو برای: difference frequency generation dfg
تعداد نتایج: 1202258 فیلتر نتایج به سال:
Introduction: Miniaturisation of RF devices is very important for development in the next generation of wireless communication systems. The size reduction technique must be applied not only to the RF circuit but also to the antenna. The size of antenna is the most difficult parameter to reduce. The quality of antennas can be evaluated using the quality factor Q. This quantity of practical inter...
Cascaded difference frequency generation has been observed in intracavity optical parametric oscillators based on bulk lithium niobate and producing nanosecond pulses of terahertz radiation. Two idler waves are generated, namely: the primary idler wave associated with the parametric down conversion process itself; and a secondary idler wave, due to difference frequency generation. Experimental ...
A compact, tunable mid-IR laser source is the most critical opto-electronic component in a spectroscopic molecular sensor. Until recently, the choice of such sources was limited to cryogenically cooled Pb-salt diode lasers and lowpower devices based on difference frequency generation (DFG). The development of quantum cascade (QC) lasers and especially single-frequency devices with distributed f...
Drug-resistance acquisition through kinase gate-keeper mutations is a major hurdle in the clinic. Here, we determined the first crystal structures of the human FGFR4 kinase domain (FGFR4K) alone and complexed with ponatinib, a promiscuous type-2 (DFG-out) kinase inhibitor, and an oncogenic FGFR4K harboring the V550L gate-keeper mutation bound to FIIN-2, a new type-1 irreversible inhibitor. Rema...
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