Development of a mirror backed volume phase grating with potential for large aperture and high damage threshold

Rambo, Patrick K.; Schwarz, Jens; Smith, I. C.

doi:10.1016/j.optcom.2005.11.020

Cited by 6 publications

(6 citation statements)

References 23 publications

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“…One of the core issues in development VPHGs is their laser-induced damage threshold [14][15][16]. In this section we analyze the LIDT for the photopolymerizable glasses in order to define the applicability range when it is used to manipulate high power ultrashort laser pulses.…”

Section: Femtosecond Laser Induced Damage Threshold In Photopolymerizmentioning

confidence: 99%

“…Other elements such as photothermal refractive gratings [12] and fiber Bragg gratings [13] have also been proposed. Mirror backed volume phase gratings with coated sol-gel or dichromated gelatin films are applied for telecommunication and pulse compression [14][15][16], whereas surface relief reflection gratings [17,18] are readily available from commercial sources. However, no report exist treating photosensitive materials which simultaneously satisfy the two groups above mentioned together with a high laser-induced damage threshold.…”

Section: Introductionmentioning

confidence: 99%

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Femtosecond spectral pulse shaping with holographic gratings recorded in photopolymerizable glasses

Hernández‐Garay¹,

Martínez-Matos²,

Izquierdo³

et al. 2011

Opt. Express

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Abstract:The majority of the applications of ultrashort laser pulses require a control of its spectral bandwidth. In this paper we show the capability of volume phase holographic gratings recorded in photopolymerizable glasses for spectral pulse reshaping of ultrashort laser pulses originated in an Amplified Ti: Sapphire laser system and its second harmonic. Gratings with high laser induce damage threshold (LIDT) allowing wide spectral bandwidth operability satisfy these demands. We have performed LIDT testing in the photopolymerizable glass showing that the sample remains unaltered after more than 10 million pulses with 0,75 TW/cm 2 at 1 KHz repetition rate. Furthermore, it has been developed a theoretical model, as an extension of the Kogelnik's theory, providing key gratings design for bandwidth operability. The main features of the diffracted beams are in agreement with the model, showing that non-linear effects are negligible in this material up to the fluence threshold for laser induced damage. The high versatility of the grating design along with the excellent LIDT indicates that this material is a promising candidate for ultrashort laser pulses manipulations.

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Section: Femtosecond Laser Induced Damage Threshold In Photopolymerizmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Femtosecond spectral pulse shaping with holographic gratings recorded in photopolymerizable glasses

Hernández‐Garay¹,

Martínez-Matos²,

Izquierdo³

et al. 2011

Opt. Express

View full text Add to dashboard Cite

show abstract

“…Typical thresholds of some J/cm 2 can be reached in picosecond regime depending on the grating type in terms of line density and incidence [3,[9][10][11]. Various alternative solutions were also studied such as volume phase gratings [12], total internal reflection gratings [13] or transmission gratings [14]. Nevertheless, none was really retained for petawatt class laser facilities probably due to nonlinear effects concerns for transmissive gratings and environment sensitivity for phase holograms.…”

Section: Introductionmentioning

confidence: 99%

High reflection mirrors for pulse compression gratings

Palmier¹,

Néauport²,

Baclet³

et al. 2009

Opt. Express

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We report an experimental investigation of high reflection mirrors used to fabricate gratings for pulse compression application at the wavelength of 1.053microm. Two kinds of mirrors are studied: the mixed Metal MultiLayer Dielectric (MMLD) mirrors which combine a gold metal layer with some e-beam evaporated dielectric bilayers on the top and the standard e-beam evaporated MultiLayer Dielectric (MLD) mirrors. Various samples were manufactured, damage tested at a pulse duration of 500fs. Damage sites were subsequently observed by means of Nomarski microscopy and white light interferometer microscopy. The comparison of the results evidences that if MMLD design can offer damage performances rather similar to MLD design, it also exhibits lower stresses; being thus an optimal mirror substrate for a pulse compression grating operating under vacuum.

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“…It is twice the threshold of a gold reflection grating as measured in the same paper [157]. The same concept was thoroughly addressed by Rambo et al [158]. In this latter case, 1480 lines/mm DCG reflection gratings were studied in either TE or TM polarization for a 1053 nm wavelength.…”

Section: Volume Gratingsmentioning

confidence: 74%

“…Nevertheless, VPH gratings can be used in pulse compressors in a reflective configuration by coupling a transmission VPH grating recorded on a thick layer to a dielectric reflective mirror. While the substrate is a mirror, the transmission VPH acts as a double-pass transmission Bragg diffraction grating [157,158]. Reichart et al optimized a 1636 lines/mm grating that exhibits 96% theoretical diffraction efficiency for a 55 • incidence (Bragg diffraction at 65 • ) at the wavelength of 1053 nm.…”

Section: Volume Gratingsmentioning

confidence: 99%