We report on the development of an ultrafast beam shaper capable of generating Bessel
beams of high cone angle that maintain a high intensity hot spot with subwavelength …

Glass processing is a subject of high interest for many industrial fields such as optics
manufacturing, smart electronics or medical devices. With respect to nanosecond …

Polymethylpentene (PMP) polymers can be used to make advanced optics, especially for
midinfrared (MIR) ultrafast optics. In this study, an optical parametric converter pumped by a …

Femtosecond laser direct writing in materials has been studied due to its advantages in
micro-processing. The discovery of polarization effect found in controlling the crystallization …

设计并研制了一套用于激光切割的贝塞尔镜头及光束检测系统. 此外, 采用设计的贝塞尔镜头与
中心波长为1 064 nm 的皮秒脉冲激光器产生皮秒贝塞尔光束, 对厚度为1 mm …

Self-regeneration of volume gratings recorded inside polymethyl methacrylate (PMMA) after
70–100 days is demonstrated. First, volume gratings were made inside PMMA by …

We demonstrate recovery of diffraction efficiency of the grating in PMMA inscribed by direct
femtosecond laser writing. We investigated time-lapse measurements of the diffraction …

Using an electromagnetic approach based on three-dimensional Maxwell's equations
coupled with electron density equation, we investigate femtosecond laser interaction with …

Due to their high efficiency and broad operational bandwidths, volume phase holographic
gratings (VPHGs) are often the grating technology of choice for astronomical instruments …

Fabrication of a through hole in a polyimide film (PI) was demonstrated by holographic
ultraviolet (UV) nanosecond laser processing with a computer-generated hologram …