Proceedings ArticleDOI
New method for the fabrication of pulse compression grating
Wei Zhang,Jianhong Wu,Jianqiang Zhu,Chaoming Li +3 more
- Vol. 6149, pp 614921
TLDR
In this paper, a simple and practical method for regulating light path of large size pulse compression grating with big size is introduced, where the real grating and the imaginary one produced by two constructive beams interference overlap to produce the moire fringe pattern.Abstract:
Large size pulse compression grating (PCG) with needs high adjusting precision in the light path of PCG fabrication. Note that the longitudinal error is the most error source of diffraction wavefront aberration of grating. It is difficult from conventional light path regulation to obtain such small longitudinal regulative error. A simple and practical method for regulating light path of PCG with big size is introduced. Rotate the grating fabricated by conventional light path adjustment and place it on the original recorded plane. The real grating and the imaginary one produced by two constructive beams interference overlap to produce the moire fringe pattern. Generally speaking, conventional regulation generates longitudinal error that results in cirques. Regulating the pinhole till Moire fringes become parallel and straight, and then backtrack with half of the regulating quantity, which is called Moire fringe method (MFM). With that, the problem that longitudinal precision of conventional light path adjustment is low is solved. To begin with the imaging formula of holographic lens, the principle of MFM is deduced theoretically. From results generated by ZEMAX software, the diffraction wavefront aberration of grating can be reduced to the least by MFM effectively. Proceeding with the relationship between optical system of holographic grating and the diffraction wavefront aberration of grating, the aberration of moire fringes obtained by analyzing the deviation of the fringes from parallel straight lines is about twice as the diffraction wavefront aberration of grating by reference to primary aberration theory.read more
Citations
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Journal ArticleDOI
Analysis and minimization of spacing error of holographic gratings recorded with spherical collimation lenses.
Shiwei Wang,Lijiang Zeng +1 more
TL;DR: Through theoretical analysis and numerical calculation, it is proved that the interference aberration can be analyzed with the Zernike polynomials and the adjustment errors can be estimated according to the linear relationship between the errors and the polynomial coefficients.
Journal ArticleDOI
Wavefront aberration of plane diffraction gratings fabricated in a Lloyd's mirror interferometer
TL;DR: In this paper, a Lloyd's mirror interferometer is used to fabricate low-aberration gratings in holographic lithography, and a method to optimize the wavefront aberration is proposed.
Journal ArticleDOI
A single collimating lens based dual-beam exposure system for fabricating long-period grating
Vunam Le,Guanhao Wu,Lijiang Zeng +2 more
TL;DR: In this paper, a single collimating lens based dual-beam exposure system is proposed, in which two interference beams share one collimation lens, and the interference aberration caused by the pinholes on the off-axis positions is compensated through feedback adjustment of the pinhole relative position.
Proceedings ArticleDOI
Image grating metrology using phase-stepping interferometry in scanning beam interference lithography
TL;DR: In this paper, the authors proposed a phase-stepping interferometry-based wavefront metrology method for large-scale gratings, where a transmission grating is used to combine the two beams to form an interferogram which is recorded by a charge coupled device (CCD).
Proceedings ArticleDOI
Influence of temperature on the optical system with large diameter off-axis parabolic lenses
TL;DR: In this paper, the authors proved that the diffraction wavefront aberration of holographic grating caused by the pinhole's location errors is much larger when the displacement occurs along z axis than along the other two axes.
References
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Journal ArticleDOI
Grating and prism compressors in the case of finite beam size
TL;DR: In this article, the authors used the Kirchhoff-fresnel integral and an amplitude transfer operator for the grating and prism compressors for the case of finite beam size, and showed that even for well-collimated beams, pulse broadening may occur (mainly because of the wavelength dependence of the lateral walkoff).
Journal ArticleDOI
Analysis of compression of frequency chirped optical pulses by a strongly dispersive grating pair.
TL;DR: Strong dispersion as a limiting influence upon compression of linearly chirped pulses is examined for the grating pair at several laser wavelengths.
Journal ArticleDOI
Investigation of a grating-based stretcher/compressor for carrier-envelope phase stabilized fs pulses
Isabell Thomann,Etienne Gagnon,R. Jason Jones,Arvinder Sandhu,A. L. Lytle,Ryan Anderson,Jun Ye,Margaret M. Murnane,Henry C. Kapteyn +8 more
TL;DR: The results demonstrate experimentally that there is not a strong coupling mechanism between CEP and beam pointing through a stretcher/compressor, as well as measuring significantly smaller CEP fluctuations than experimental results reported previously.
Journal ArticleDOI
Chirped-pulse compression in strongly dispersive media
TL;DR: In this article, an analysis for the temporal compression of linearly chirped pulses propagating in strongly dispersive media is given, where the wave vector k(ω) of the dispersive medium is expanded in a Taylor series through terms cubic in frequency.