Department of Chemistry, Rutgers University, 73 Warren St., Newark, New Jersey 07102, USA.
Opt Lett. 2011 Aug 1;36(15):2904-6. doi: 10.1364/OL.36.002904.
Optical Kerr gating is widely used in ultrafast measurements ranging from pulse characterization to spectroscopy and microscopy. We examined the efficiency and the temporal response of three cubic lattice Kerr media, YAG, GGG and BGO, and compared them with the well studied fused silica (fast response, low efficiency) and STO (high efficiency, slow response). YAG and GGG emerged as superior materials for ultrafast spectroscopy and microscopy applications thanks to their fast Kerr response and considerably higher gating efficiency than silica at low gating energies. Importantly, it was found that in collinear geometry all tested materials except STO are capable of reaching nearly 100% transmission.
光克尔门广泛应用于超快测量，从脉冲特性到光谱学和显微镜学。我们研究了三种立方晶格克尔介质（YAG、GGG 和 BGO）的效率和时间响应，并将其与研究充分的熔融石英（快速响应、低效率）和 STO（高效率、慢响应）进行了比较。YAG 和 GGG 由于其快速克尔响应以及在低门控能量下比石英高得多的门控效率，成为超快光谱学和显微镜学应用的优秀材料。重要的是，发现在共线几何中，除了 STO 之外的所有测试材料都能够达到近 100%的传输。
