Introduction and overview

Gupta, V.P.

doi:10.1016/b978-0-12-818870-5.00001-0

Cited by 2 publications

(3 citation statements)

References 45 publications

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“…Hyper-Rayleigh Scattering (HRS) measures the second-order nonlinear optical properties of materials by detecting the scattered light at double the frequency of the incident light. − …”

Section: Characterization Techniques Of Nlo Materialsmentioning

confidence: 99%

“…This technique can be used to study ultrafast nonlinear processes and relaxation dynamics. , Time-Resolved Spectroscopy is used to study the dynamics of nonlinear optical effects with picosecond or femtosecond time resolution. It provides valuable insights into the temporal behavior of nonlinear processes. , Hyper-Rayleigh Scattering (HRS) measures the second-order nonlinear optical properties of materials by detecting the scattered light at double the frequency of the incident light. − Maker Fringe Technique is used to measure the nonlinear susceptibility of the material. It involves measuring the change in the refractive index of the material with respect to the intensity of the applied laser beam. , …”

Section: Characterization Techniques Of Nlo Materialsmentioning

confidence: 99%

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Advances in Solid-State Nonlinear Optical Materials: From Fundamentals to Applications

Aslam,

Doane,

Yeung

et al. 2023

ACS Appl. Opt. Mater.

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Nonlinear optical (NLO) materials are an interesting class of compounds that have found application in many aspects of our ordinary lives. Solid-state NLO materials can be classified into organic, inorganic, and hybrid. This brief review article has the aim of introducing the readers to the fundamental principles of nonlinear optics while focusing on the inorganic solid-state NLO materials with an emphasis on their structural peculiarities, synthetic methods, and applications. The materials will be grouped by their intended spectral application: mid-and far-IR (chalcogenides, halides, and pnictides), near-IR and visible ranges (KDP, KTP and iodates), and UV and deep-UV (borates, carbonates, nitrates, and phosphates). Among the compounds that are discussed, several classes are highlighted: promising IR compounds with wide band gaps (E g > 3.5 eV) with second harmonic generation (SHG) coefficients comparable to industry standard AgGaS 2 (d ij ≥ 1 × AGS) suitable for mid-IR NLO applications, NLO compounds that can meet commercial requirements in the vis-NIR and UV regions, and deep-UV materials with even wider band gaps (E g > 6.2 eV) and SHG coefficients surpassing those of traditional KH 2 PO 4 crystals (d ij ≥ 1 × KDP). Several prevailing synthetic methods (solid-state, flux, and hydrothermal) are discussed, and different types of characterization techniques are presented. Finally, applications, ranging from lasers and quantum and neuromorphic computing to "uses beyond optics" in battery electrodes and ionic conductors are discussed. Although brief, we hope this review will provide valuable insights into the fast-expanding field of solid-state NLO materials.

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“…Hyper-Rayleigh Scattering (HRS) measures the second-order nonlinear optical properties of materials by detecting the scattered light at double the frequency of the incident light. − …”

Section: Characterization Techniques Of Nlo Materialsmentioning

confidence: 99%

Section: Characterization Techniques Of Nlo Materialsmentioning

confidence: 99%

Advances in Solid-State Nonlinear Optical Materials: From Fundamentals to Applications

Aslam,

Doane,

Yeung

et al. 2023

ACS Appl. Opt. Mater.

View full text Add to dashboard Cite

show abstract

“…The light is reflected back and forth as it passes through, leading to the exponential decay of the light. By measuring the decay time (ring-down time), CRDS analyses the light intensity variations resulting from cavity loss due to absorption by target molecules [136,137]. CRDS is a direct quantitative gas sensing technique that is more sensitive than conventional absorption spectroscopy and GC techniques and relatively resistant to power fluctuations.…”

Section: Optical Gas Sensingmentioning

confidence: 99%

Greenhouse Gas Emissions and Life Cycle Assessment on the Black Soldier Fly (Hermetia illucens L.)

2022

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The black soldier fly (BSF) is recognised as a valuable insect for mitigating feed and organic waste management challenges. Thus, concerted efforts are being directed toward the promotion of the BSF. Despite the numerous advantages of BSF larvae, there are several critical environmental aspects, particularly its global warming potential, that need to be considered before large-scale adoption due to the complexity of the insect’s value chain. The direct assessment of greenhouse gas (GHG) and ammonia emissions from BSF larvae biotreatment is crucial for conducting a life cycle assessment (LCA) to evaluate the insect products’ environmental performance. This article reviews the emissions of GHG from BSF larvae bioconversion activities based on different gas sensing techniques while highlighting the factors that influence these emissions. Generally, low gas emissions were reported. However, the influence of various factors influencing emissions remains unclear, especially for nitrous oxide. We also analysed LCA studies on BSFL products while emphasising the uncertainties and variabilities among the studies. The wide variation of impact scores reported in the studies suggests that standardised guidelines should be developed to streamline methodical approaches for impact assessments pertaining to system boundaries, functional units, allocation, and system expansion assumptions. We identified several aspects for future improvements to harmonise studies in order to enhance the comparative assessment of the BSFL products.

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Introduction and overview

Cited by 2 publications

References 45 publications

Advances in Solid-State Nonlinear Optical Materials: From Fundamentals to Applications

Advances in Solid-State Nonlinear Optical Materials: From Fundamentals to Applications

Greenhouse Gas Emissions and Life Cycle Assessment on the Black Soldier Fly (Hermetia illucens L.)

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