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艾里光束发生器

名称: 艾里光束发生器

型号: PE-203-1-Y-A*

品牌: HOLO/OR

  • 详细信息

艾里光束是一种非衍射波形,不会随光束传播而散开,并且在行进时呈现出弯曲的外观。

艾里光束也具有自由加速的特性。随着传播,它弯曲以形成抛物线弧。

理想的艾里光束的横截面将显示出主强度区域,并且一系列相邻的,发光度较低的区域逐渐缩小到无穷大。

HOLO / OR  建议使用特殊的DOE元素将高斯光束转换为艾里光束。 

 


二元分裂通风光束

 


多级通风光束

 

Part Number Wavelength
(nm)
Dimensions
(mm)
number of levels Material Clear Aperture
(mm)
PE-203-1-Y-A* 1600 25.4 2 FS 2
PE-206-I-Y-A 1064 11 16** FS 9.2
Part Number Wavelength
(nm)
Dimensions
(mm)
number of levels Material Clear Aperture
(mm)
PE-203-1-Y-A* 1600 25.4 2 FS 2
PE-206-I-Y-A 1064 11 16** FS 9.2

* Separation angle between the 2 Airy Beams: 9.2 Degrees

** High Efficiency

 

图1

Ultrafast Airy beam optical parametric oscillator.

(a) Schematic illustration of the experimental setup for the ultrafast Airy beam OPO. λ/2: half-wave plate; PBS: polarizing beam-splitter cube; L1-2: Lenses; M1-3: mirrors; OC: output coupler; C: MgO:PPLN crystal (in oven); CPM: cubic phase mask; S: dichroic mirrors; PM: power meter. Recorded intensity profile of (b) resonant signal, (c) idler and (d) Airy beam, (e) 3-D illustration of the generated Airy beam.

 

图2

Characteristics of Airy beam.

(a) Measurement of beam acceleration of the Airy beam OPO as a function of propagation distance. Solid line (black) represents theoretically predicted acceleration, (red) is the quadratic fit to the experimental data (dots). (Inset) Variation in the width (FWHM) of the central lobe of the Airy beam over propagation. Solid line (red) is linear fit to data (dots). (b–e) Verification of self-healing property of the output beam of the Airy beam OPO. (f) The line profile of the beam at a distance z = 10 cm (blue), z = 60 cm (red), z = 120 cm (brown) from the Fourier plane.

 

 

图3

Performance of the ultrafast Airy beam source.

(a) Variation of the Airy beam signal power across the tuning range of the ultrafast OPO, while pumping with ~10.5 W of input power. (b) Variation of Airy beam (λAiry = 1632 nm) signal power with pump power. (c) Dependence of signal (λs = 1632 nm) and idler (λi = 3057 nm) power in Gaussian intensity distribution on pump power. (d) Interference autocorrelation trace of the Airy beam signal pulses. Inset: Corresponding spectrum.

 

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