All-reflective self-referenced spectral interferometry for single-shot measurement of few-cycle femtosecond pulses in a broadband spectral range

Si, Zhe; Shen, Xiong; Zhu, Jingxin; Lin, Lei; Bai, Lihua; Li, Jun

doi:10.3788/col202018.021202

Cited by 10 publications

(11 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Femtosecond lasers can be used to fabricate micro/nanostructures, changing the properties of materials and opening up new applications [19][20][21][22][23][24][25][26][27][28][29] . In this experiment, we employed a high-repetition commercial femtosecond laser system (PHAROS, LIGHT CONVERSION, Lithuania) with the frequency, central wavelength, and pulse width of 75 kHz, 1030 nm, and 250 fs, respectively.…”

Section: Preparation Of Porous Structurementioning

confidence: 99%

Femtosecond laser textured porous nanowire structured glass for enhanced thermal imaging

et al. 2022

Chin. Opt. Lett.

View full text Add to dashboard Cite

Infrared (IR) thermal imaging has aroused great interest due to its wide application in medical, scientific, and military fields. Most reported approaches for regulating thermal radiation are aimed to realize IR camouflage and are not applicable to enhance thermal imaging. Here, we introduce a simple and effective method to process porous glass by femtosecond laser scanning, where distributed nanocavities and nanowires were produced, which caused improvement of the treated glass emissivity. The as-prepared sample possessed better IR thermal radiation performance but lower transmittance to visible light. We also demonstrated its applicability by placing it in different backgrounds, where the IR image temperature of lasertreated glass was closer to the actual environment, and this strategy may provide a new vision for enhanced thermal imaging.

show abstract

Section: Preparation Of Porous Structurementioning

confidence: 99%

Femtosecond laser textured porous nanowire structured glass for enhanced thermal imaging

et al. 2022

Chin. Opt. Lett.

View full text Add to dashboard Cite

show abstract

“…2 (b). The temporal profile was characterized by using our home-made all reflective transient-grating based self-referenced spectral interference (TG-SRSI) apparatus [21], which was close to the Fourier-transform-limited (FTL) pulse of 33 fs FWHM based on the measured spectrum.…”

Section: Resultsmentioning

confidence: 99%

“…After four bounces of reflections on CMs1 and a total group delay dispersion (GDD) of -2000 fs 2 , an output of a 36 fs compressed pulse was achieved, as shown in Figure 2(b). The temporal profile was characterized by using our home-made all-reflective transient-grating-based self-referenced spectral interference (TG-SRSI) apparatus [21] , which was close to the Fouriertransform-limited (FTL) pulse of 33 fs FWHM based on the measured spectrum.…”

Section: Resultsmentioning

confidence: 99%

High-performance 800–1050 nm seed pulses based on spectral broadening and filtering for petawatt lasers

Liang

Chen

Yang

et al. 2023

High Pow Laser Sci Eng

Self Cite

View full text Add to dashboard Cite

High-performance 86 μJ, 11.2 fs pulses with a spectrum range of 800-1050 nm are generated based on 1030 nm, 190 fs Yb femtosecond pulses by using multi-plate based spectral broadening and filtering. Taking advantage of single beam configuration, the obtained pulses own excellent power and spectral stabilities. Since the output spectrum is obtained by spectrally filtering the broadened components, the temporal contrast of output pulses is enhanced by at least four orders of magnitude. Together with the robust and simple setup, the proposed method is expected to be a competitive option for the generation of seed pulses for 10s-100s petawatt lasers.

show abstract

“…In the experiments, CMs1 provides a total GDD of -2000 fs 2 because of the large positive dispersion introduced by the interactions between 4 0.5 mm-thick Al2O3 plates and the laser. Our home-made all reflective transient-grating based self-referenced spectral interference (TG-SRSI) apparatus [18] is used to characterize the pulses. An output of 36 fs compressed pulse after CMs1 is achieved, as shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

High-performance seed pulses for multi-petawatt laser

Liang

Chen²,

Wang³

et al. 2022

Advanced Lasers, High-Power Lasers, and Applications XIII

View full text Add to dashboard Cite

To achieve multi-petawatt pulses, the generation of high-temporal-contrast few-cycle seed pulses with the central wavelength of 910 nm is the first step. In this research, high-performance seed pulses with a spectrum ranging from 800 nm to 1050 nm and pulse energy of 86 μJ are generated based on the filtered multi-plate spectral broadening and spectral filtering from a Yb-based femtosecond laser system. With self-phase modulation (SPM) induced spectral broadening, the input with relatively narrow spectrum bandwidth is broadened widely, which enables the final output pulse be compressed from full width at half maximum (FWHM) of 190 fs to 11.2 fs and a compression ratio of about 18 after dispersion compensation. The experiments show that the temporal contrast of the final output pulse is improved by at least four orders of magnitude through spectral filtering and new spectral components generated by third-order nonlinear processes such as SPM and self-focusing. Furthermore, taking advantage of single beam and self-focusing process, the final output has high energy stability and spectrum stability. Based on the merits above, together with its simplicity and robustness, this method proposed is expected to be used for the seed pulse generation of 10s-100s petawatt (PW) level laser system in the future.

show abstract

All-reflective self-referenced spectral interferometry for single-shot measurement of few-cycle femtosecond pulses in a broadband spectral range

Cited by 10 publications

References 0 publications

Femtosecond laser textured porous nanowire structured glass for enhanced thermal imaging

Femtosecond laser textured porous nanowire structured glass for enhanced thermal imaging

High-performance 800–1050 nm seed pulses based on spectral broadening and filtering for petawatt lasers

High-performance seed pulses for multi-petawatt laser

Contact Info

Product

Resources

About