Volume phase gratings for spectroscopy, ultrafast laser compressors, and wavelength division multiplexing

Arns, James A.; Colburn, W. S.; Barden, Samuel C.

doi:10.1117/12.368222

Cited by 50 publications

(20 citation statements)

References 17 publications

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“…So far hardened gelatin polymer, photo-thermo-refractive and various types of UV-sensitive phosphate glasses were used as a medium for VBG recording. 11,12,15 Femtosecond direct laser writing expanded the range of suitable materials where such devices can be recorded. Diffraction properties of VBG's are analyzed by coupled wave model.…”

Section: Recording Of Volume Bragg Gratingsmentioning

confidence: 99%

“…Having this property, VBG are widely used in many photonic applications. 11 As grating depth/period ratio have to be considerably large, surface Bragg gratings are uncommon, thus traditional grating recording technique relay on photosensivity of the transparent material where interference pattern from UW cw-laser emission 12 or ultrashort laser pulses 13,14 are recorded directly in the volume of the material. So far hardened gelatin polymer, photo-thermo-refractive and various types of UV-sensitive phosphate glasses were used as a medium for VBG recording.…”

Section: Recording Of Volume Bragg Gratingsmentioning

confidence: 99%

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Volumetric modifications in fused silica using Gaussian and Bessel femtosecond laser beams

et al. 2013

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In this work we present the results on volumetric fused silica modifications using femtosecond Gaussian and Gaussian-Bessel laser beams. We show that for specific photonic device, like volume Bragg grating, fabrication, Bessel beams are more superior to Gaussian, as the recording process is much faster and fabricated devices have better efficiencies. Also Gaussian beam tend to be more efficient in formation of nanogratings that causes the appearance of birefringence in modified zones. This reduces optical quality of fabricated device and limits overall recording velocity. We have successfully fabricated volume Bragg gratings in the bulk of fused silica that had absolute diffraction efficiencies reaching ∼90% using femtosecond Gaussian-Bessel beam, while gratings made with Gaussian beam reached only 60%.

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Section: Recording Of Volume Bragg Gratingsmentioning

confidence: 99%

Section: Recording Of Volume Bragg Gratingsmentioning

confidence: 99%

Volumetric modifications in fused silica using Gaussian and Bessel femtosecond laser beams

et al. 2013

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“…The initiator has sensitivity for a specific wavelength, so the wavelength of the laser can be selected by changing initiator and sensitizer. The composition of photopolymer should be optimized to get high sensitivity and diffraction efficiency [1][2][3][4][5][6][7][8]. Recently, there have been a lot of efforts to save and store more information [9][10].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Holographic Recording of Fluorescent Photopolymer Films Containing Anthracene Polymer for Security

Park¹,

Kim²,

Kim³

et al. 2010

Journal of the Optical Society of Korea

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Photopolymer films containing fluorescent anthracene polymer, polymethyleneanthracene (PMAn), were prepared with different concentrations of PMAn for holographic recording useful for security documents. The fluorescent photopolymer film showed enhanced fluorescent intensity due to the micro-separation which arose from grating formation and diffusion during photopolymerization. Experimental values of diffraction efficiency were well matched to the simulated values for photopolymers having different PMAn concentrations. Holography patterning was carried out using the fluorescent photopolymer under a photo-mask. A grating was confirmed using microscope techniques in the recorded area under the pattern. Importantly the recorded area showed enhanced fluorescence compared to the unrecorded part, allowing fluorescence patterns at micro scale along with the submicron grating pattern. The fluorescence pattern recorded on the photopolymer film provides additional readability of holographic reading and thus is useful for secure recording and reading of information.

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“…In addition to astronomical observation, diffraction grating free from polarization and its pole wavelength division are considered as potential further applications of this type. Developments of new wavelength division device are also advanced by the sophistication of micro fabrication technology and the glass material suitable for a small light device 17) .…”

Section: Introductionmentioning

confidence: 99%

Optimal design of the grating with reflective plate of comb type for astronomical observation using RCWA

2004

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The star formation distribution and internal movement in the Galaxy is the key variable to probe into the evolution and formation process of the Galaxy. To this end, the diffraction grating is required, which can achieve high dispersion and efficiency by direct vision grating in a wide visible wavelength region. We propose a grism that fulfills consisting of two prisms and a diffraction grating with comb-like thin reflective plates arranged in parallel. A beam of light reflected by this grism on a reflective plate spreads in the diffractive distribution determined by wavelength and grating period. In the case where high order diffraction light is employed, the structure is designed such that the highest possible efficiency is given to the wavelength at the order that satisfies interference conditions in the positive direction of the reflective plate. We design and calculated by using the program based on the Rigorous Coupled Wave Analysis (RCWA) in order to obtain the optimum conditions for high efficiency of 80% in a wide wavelength region by using the grism with high-order diffraction.

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Volume phase gratings for spectroscopy, ultrafast laser compressors, and wavelength division multiplexing

Cited by 50 publications

References 17 publications

Volumetric modifications in fused silica using Gaussian and Bessel femtosecond laser beams

Volumetric modifications in fused silica using Gaussian and Bessel femtosecond laser beams

Preparation and Holographic Recording of Fluorescent Photopolymer Films Containing Anthracene Polymer for Security

Optimal design of the grating with reflective plate of comb type for astronomical observation using RCWA

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