Femtosecond motion picture

Abstract

Abstract:We have developed an ultrafast imaging system to record and observe the femtosecond phenomena in air and an optical medium as a form of a temporally continuous motion picture. To obtain the motion picture, the light-in-flight recording by holography using a femtosecond pulsed laser is applied. We demonstrate the recording and observation of femtosecond laser pulse propagating in air and a dispersion prism. The time and spatial behavior of such femtoseconed light pulse in the prism and at the boundary between the prism and air is clearly observed. This technology achieves a temporal microscope with more than 10 11 magnification.

Light-In-Flight Imaging by a Silicon Image Sensor: Toward the Theoretical Highest Frame Rate

“…Images of the travelling laser pulse captured at the frame interval of 10 ns (from the bottom to the top). Much higher spatial resolution is achieved by the silicon image sensor than most of past light-in-flight imaging, except holographic images by Kubota and Awatsuji [2,3]. …”

“…Since the Abramson’s holographic “Light-in-Flight imaging” in 1978 [1], various technologies have been created to address this attractive topic. Kubota et al expanded the holographic technology and showed many impressive images of propagating light, such as light progressing in a zigzag manner in a glass plate by total reflection at the upper and the lower glass surfaces [2], light refracted by a triangular prism [3], and even a flying Chinese letter meaning “light” in a three-dimensional space [4]. Gao et al, introduced the paradigm of compressed sensing into a streak camera to catch flying light in 2D [5].…”

A Rigorous Thermodynamic Property Model for Fluid-Phase 1,1-Difluoroethane (R-152a)

“…13, w in Fig. 14, (×) Kubota [43]; (•) Nakagawa et al [44]; ( ) Porichanski et al [45]; ( ) Sato and Watanabe [46]. and PVT in Fig.…”

Moving Picture Of Three-Dimensional Image Of Femtosecond Light Pulse Propagating in Three-Dimensional Space

“…We observed reflection, refraction, and diffraction of a picosecond light pulse and propagating in air and optical devices [17]. Propagation and refraction of a femtosecond light pulse based on the technique were demonstrated [18,19]. We also reported observation of the propagating femtosecond laser pulse train generated by an integrated array illuminator [19][20][21].…”

“…Propagation and refraction of a femtosecond light pulse based on the technique were demonstrated [18,19]. We also reported observation of the propagating femtosecond laser pulse train generated by an integrated array illuminator [19][20][21]. The integrated array illuminator is an optoelectronic device for generating an array of laser beam or a laser-pulse train from a laser beam or a laser pulse [22].…”