论文标题
使用非理性斜率提高了空间光调节剂的相位精度：应用于Attosend Metrology
Increased phase precision of spatial light modulators using irrational slopes: Application to attosecond metrology
论文作者
论文摘要
空间光调节器（SLM）修改光的幅度和阶段的能力证明了它们对光学和光子学界而言是无价的。在许多应用中，SLM的位深度是数字处理器决定的主要限制因素。结果，刷新速度和刻度之间通常存在妥协。在这里，我们提出了一种方法，以增加使用线性斜率的SLM的有效位深度，通常用于处理零订单效应。使用两个干涉瞬态吸收光谱设置对该技术进行了测试。通过在紫外线中产生一系列Attsond脉冲和谐波的气体中的高谐波产生，产生了两种脉冲，它们在远场中的干扰提供了光相测量。在位深入的数字处理器所决定的范围之外的精度的提高已被发现。
The ability of spatial light modulators (SLMs) to modify the amplitude and phase of light has proved them invaluable to the optics and photonics community. In many applications the bit-depth of SLMs is a major limiting factor dictated by the digital processor. As a result, there is usually a compromise between refresh speed and bit-depth. Here we present a method to increase the effective bit-depth of SLMs which utilizes a linear slope as is commonly applied to deal with the zeroth order effect. This technique was tested using two interferometric transient absorption spectroscopy setups. Through the high harmonic generation in gases producing a train of attosecond pulses and harmonics from solids in the ultraviolet, two pulses are generated that interfere in the far field providing a measurement of the optical phase. An increase in the precision far beyond the limit dictated by the digital processor in the bit-depth was found.
