We report on the laser damage resistance of ion beam-sputtered oxide materials (Al2O3, Nb2O5, HfO2, SiO2, Ta2O5, ZrO2) and mixtures Al2O3-SiO2, Nb2O5-SiO2, HfO2-SiO2, Ta2O5-SiO2, ZrO2-SiO2, irradiated by single 500 fs pulses at 1030 nm. Laser-induced threshold (LIDT), refractive index, bandgaps single-layer coatings are measured. For pure a linear evolution LIDT with bandgap is observed. The results in accordance our simulations based photo-ionization avalanche-ionization. In case mixtures,...

The total internal reflection ellipsometry (TIRE) method was used for the excitation and study of sensitivity properties hybrid Tamm plasmon polariton – surface (TPP-SPP) single resonance (SPR) modes GCSF receptor immobilization. Additionally, optimized TPP-SPP mode investigated compared with SPR when BSA proteins formed a layer on gold surface. dispersion relations were to explain enhanced ellipsometric parameters over conventional SPR. SPP component (δΔ h-SPP /δλ=53.9°/nm) about 6.4 times...

Achieving higher optical power in UV laser systems is a challenging task due to the limited performance of their built-in elements. As rule thumb, interference coatings such elements are found be weakest links by means laser-induced damage threshold (LIDT). The resistance directly attributed fundamental absorption properties deposited layers. Unfortunately, there only set available materials with discrete refractive indices that also compatible applications. In this study, an attempt made...

A principal possibility to overcome fundamental (intrinsic) limit of pure optical materials laser light resistance is investigated by designing artificial with desired properties. We explore the suitability high band-gap ultra-low refractive index material (n less than 1.38 at 550 nm) in context highly reflective coatings enhanced resistance. The new generation all-silica (porous/nonporous) SiO

ZrO2-SiO2 and Nb2O5-SiO2 mixture coatings as well those of pure zirconia (ZrO2), niobia (Nb2O5), silica (SiO2) deposited by ion-beam sputtering were investigated. Refractive-index dispersions, bandgaps, volumetric fractions materials in mixed analyzed from spectrophotometric data. Optical scattering, surface roughness, nanostructure, optical resistance also studied. Zirconia-silica mixtures experience the transition crystalline to amorphous phase increasing content SiO2. This results reduced...

Spectroscopic ellipsometry was used for the generation and study of hybrid TPP-SPP mode as a sensor probe real-time formation amalgam structures on surface plasmon active gold layer. The Au/Hg features mercury atoms' penetration into layer were determined by means experimental TIRE data regression analysis multi-layer model containing index-profile behavior coupled excitations provided more information about than single TPP SPP resonances did. present demonstrated possibility using to design...

Thin film growth of ${\textrm{TiO}}_2$TiO2 by physical vapor deposition processes is simulated in the Virtual Coater framework resulting virtual thin films. The simulations are carried out for artificial, simplified conditions as well representing a real coating process. study focuses on porous films which exhibit significant anisotropy regarding atomistic structure and consequently, to index refraction. A method how determine effective anisotropic refraction medium theory developed....

The latest advances in petawatt laser technology within the ELI Beamlines project have stimulated development of large surface area dielectrically coated mirrors meeting all demanding requirements for guiding compressed 30 J, 25 fs HAPLS beam at 10 Hz repetition rate and a center wavelength 810 nm entirely vacuum. We describe production evaluation Ta2O5/HfO2/SiO2 ion sputtered (440 × 290 75) mm3 transport mirrors. No crazing was observed after thirty vacuum-air cycles. A induced damage...

Waveplates, used to modify polarization state of light, are integral part high‐power lasers. Classical approach waveplate manufacturing is based on combination birefringent crystalline materials and deposition nonpolarizing antireflection (AR) coatings. Their limitation withstand maximal peak power determined by laser‐induced damage (LID) phenomena, mainly low band‐gap in AR In this study, a novel multi‐layer high coatings was proposed investigated overcome limitation. Three eligible...

The total internal refection ellipsometry (TIRE) method was used for the generation and study of hybrid TPP-SPP mode on a photonic crystal structure with thin layer silver graphene/PMMA. Raman spectroscopy showed consistent monolayer graphene present Ag layer. Recent studies have also shown that TPP SPP components in plasmonic is sensitive to variation coupling strength due presence monolayer. decrease dip can be explained by changes conductivity this additional graphene/PMMA structure,...

Abstract Spatial filtering is an important mechanism to improve the spatial quality of laser beams. Typically, a confocal arrangement lenses with diaphragm in focal plane used for intracavity filtering. Such conventional requires access far‐field domain. In microlasers, however, impossible due lack space microresonators far‐field. Therefore, novel concept more compact and efficient necessary. this study, conceptually near‐field domain proposed demonstrated, by nanostructured multilayer...

The nonlinear lBO (liB 3 O 5 ) crystal is widely used in many Nd : YAG, Yb KGW and YlF lasers order to generate higher optical harmonics.However, the most limiting factor such applications resistance of their coated surfaces described by so-called laser Induced Damage Threshold (lIDT) parameter.In this work we investigate "fatigue" (multi-pulse) behaviour lIDTs crystals with different types (single AR@355 nm triple AR@355+532+1064 wavelength) anti-reflective coatings while optimising...

In this paper, the relation between laser-induced damage threshold (LIDT) and electric field intensity (EFI) distribution inside a CM is investigated experimentally. We show that it possible to increase LIDT values by slightly modifying of standing wave without loss spectral dispersion performance. Suggested design improvement could reliability performance both elements high-power systems they are used in.

Several fundamental restrictions limit the implementation of microlasers in high power systems, low resistivity coatings and compactness elements, especially if control polarization is necessary. Thin-film-based with extremely optical polarizing properties for normal incidence could become a preferable solution. In this Letter, novel multilayer approach to form all-silica angle applications proposed. Laser induced damage thresholds (test one-on-one) at wavelength 355 nm were <mml:math...

Recent developments of nanostructured coatings have reached a point where extensive investigations within multi-layer systems are necessary for further implementation in novel photonic systems. Although sculptured thin films explored decades, no optical and structural measurements been performed anisotropic with different deposition conditions the dense layer. In this paper, we present morphological analysis on silica films. Changing angle from 66° to 84°, indicate changes surface filling...

Despite the growing improvement in optical polishing and deposition technologies resistance of laser components used for high-power UV applications remains insufficient many cases. In this study influence different fused silica substrate preparation, post treatment processing techniques are examined terms surface roughness, scattering damage performance. The conventional polishing, etching, finally cleaning substrates have been investigated. Further, a part samples were also coated with...

A one-dimensional photonic crystal with an additional TiO2 layer, supporting Bloch surface waves (BSW), was used for enhanced signal sensitivity the detection of protein interaction. To compare optical response BSW and crystals (PC), bovine serum albumin specific antibodies against were as a model system. The results obtained show p- s-BSW components 1D PC sample layer. Furthermore, higher component p-polarization in where ellipsometric parameter Ψ five times that Δ eight than those sample....

In this work we report an experimental investigation of subsurface damage (SSD) in conventionally polished fused silica (FS) substrates which are widely used laser applications and directly influence performances optical elements. Two procedures were developed: 1 - acid etching 2 superpolishing. Additionally, surface roughness total integrated scattering (TIS) measurements performed to find correlation between the main properties induced threshold (LIDT) as circumstantial evidence...

Recently, oblique angle deposition has been extensively used to form advanced optical coatings for high power lasers. In present work (article No. 201700764), a novel approach multilayer zero-order all-silica based waveplates is demonstrated. Study shows the superior performance of tested sample and capabilities withstand laser fluence 40 J cm−2 in nanosecond regime at 355 nm wavelength. Such elements can essentially improve compact systems, even when used.

Abstract The birefringence analysis of thin m SiO 2 films deposited via evaporation at a glancing angle to the normal on resist pillar arrays Si and nanopatterned substrates is carried out by spectral color (red–green–blue [RGB]) imaging modes. Retardance over flat structured regions can be distinguished with only ≈1% difference between neighboring for visible range using RGB numerical images. Michel‐Lévy map used rendering make quantitative measurements filtering. It shown that 530 nm...

We report on the laser damage resistance of thin films prepared by Ion Beam Sputtering. The samples are fused silica substrates coated with single layer pure oxides (SiO₂, Nb₂O₅, ZrO₂, HfO₂, Ta₂O₅, Al₂O₃, Sc₂O₃) and oxide mixtures various ratios (Nb₂O₅/SiO₂, ZrO₂/SiO₂, HfO₂/SiO<sub>2,...

The two-angle conformally evaporated-film-by-rotation technique (TA-CEFR) was devised to coat the wings of monarch butterfly with nickel in order form a 500-nm thick bioreplica thereof. exhibits structural colours that are completely obscured actual by pigmental colours. Thus, TA-CEFR provides way replicate, study and exploit hidden morphologies biological surfaces.