Time amplifying techniques towards atomic time resolution

Li, Jingzhen

doi:10.1007/s11431-009-0381-0

Cited by 12 publications

(3 citation statements)

References 25 publications

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“…Up to now, there has still been no electronic camera that can match a rotating mirror camera with film in the microsecond imaging field because of its unique and irreplaceable advantages in frame area, number of frames, spatial resolution, effective dynamic range and its extensive applications [1,2]. Therefore, this kind of camera, especially simultaneous streak and framing camera, has been developing [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

A novel simultaneous streak and framing camera without principle errors

Jingzhen¹,

Feng-shan²,

Ningwen³

et al. 2018

J. Inst.

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A: A novel simultaneous streak and framing camera with continuous access, the perfect information of which is far more important for the exact interpretation and precise evaluation of many detonation events and shockwave phenomena, has been developed. The camera with the maximum imaging frequency of 2×10 6 fps and the maximum scanning velocity of 16.3 mm/µs has fine imaging properties which are the eigen resolution of over 40 lp/mm in the temporal direction and over 60 lp/mm in the spatial direction and the framing frequency principle error of zero for framing record, and the maximum time resolving power of 8 ns and the scanning velocity nonuniformity of 0.136%∼-0.277% for streak record. The test data have verified the performance of the camera quantitatively.This camera, simultaneously gained frames and streak with parallax-free and identical time base, is characterized by the plane optical system at oblique incidence different from space system, the innovative camera obscura without principle errors, and the high velocity motor driven beryllium-like rotating mirror, made of high strength aluminum alloy with cellular lateral structure.Experiments demonstrate that the camera is very useful and reliable to take high quality pictures of the detonation events. K: Image processing; Optics; Plasma diagnostics -high speed photography 1Corresponding author.

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Section: Introductionmentioning

confidence: 99%

A novel simultaneous streak and framing camera without principle errors

Jingzhen¹,

Feng-shan²,

Ningwen³

et al. 2018

J. Inst.

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“…As we know, stable CEP is very important for some applications using few-cycle laser pulses as light sources, e.g. high-order harmonic generation, attosecond physics, terahertz optics, optical frequency metrology and optical clocks [1][2][3][4][5]. What is more, some researches show that even in a multi-cycle regime, the CEP effects are also far from negligible in laser-atom/molecule interactions [6,7].…”

Section: Introductionmentioning

confidence: 99%

1 kHz, 1.6 μm high energy femtosecond pulses with self-stabilized carrier-envelope phases

Cai¹,

Li²,

Lu³

et al. 2013

Laser Phys. Lett.

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This paper reports a passive carrier-envelope phase (CEP) stabilization scheme to generate a 1 kHz, 90 fs, 0.4 mJ, 1.6 µm CEP-stabilized femtosecond pulse train through three optical parametric amplifiers with a total gain of ∼2 × 10 6 . The CEP fluctuations are measured within 240 mrad (rms) for 5 min. The CEP-stabilized pulses are generated by the nonlinear difference frequency between the second harmonic (SH) of the output from the Ti:S femtosecond laser system and the super-continuum (SC) around 533 nm excited by the SH pulses. Our design does not need octave-spanning SC, which is beneficial for improving the passive CEP-stabilization of ultrashort pulses.

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“…Many ultrafast events [4][5][6] are nonrepetitive, so it is of great importance to develop single-shot but sequential imaging technologies in order to record and assess entirely the evolutions of the ultrafast process. Multi-frame digital holography can be used for multi-frame imaging in a single-shot [7,8] to investigate high speed events because of its multi-parameter properties. Microsecond order single-shot phase-shifting digital holography has been proposed to get the dynamic phase changes of air, whose image frequencies are limited by the speed of the digital sensor [9,10].…”

Section: Introductionmentioning

confidence: 99%

A simple and compact design for multi-chromatic channel digital holography to record femtosecond order processes

Chen

et al. 2012

J. Opt.

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This paper proposes a simple and compact design for sequential imaging of a femtosecond order ultrafast process (10 −12 -10 −13 s) with single-shot multi-chromatic channel digital holography, with temporal resolution of about 180 fs, without the need of complicated multi-beam alignments. In our numerical simulation, the sequential imaging recorded by a single CMOS camera is realized by four holograms corresponding to four different moments of the process and four chromatic channels of our special band-pass filter. The frame interval and temporal resolution of the imaging are determined by both the spectral separations and bandwidths of the channels in the filter, and the group velocity dispersion induced by a dispersive element.

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Time amplifying techniques towards atomic time resolution

Cited by 12 publications

References 25 publications

A novel simultaneous streak and framing camera without principle errors

A novel simultaneous streak and framing camera without principle errors

1 kHz, 1.6 μm high energy femtosecond pulses with self-stabilized carrier-envelope phases

A simple and compact design for multi-chromatic channel digital holography to record femtosecond order processes

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