Various techniques to characterize the nonlinear (NL) optical response of centro-symmetric
materials are presented and evaluated with emphasis on the relationship between the …

Nonlinear (NL) absorption and refraction are crucial optical phenomena in the development
and application of optical materials. The Z-scan technique, first proposed by Bahae, is …

Saturable optical elements lie at the cornerstone of many modern optical systems. Regularly
patterned quasi-planar nanostructures—metasurfaces—are known to facilitate nonlinear …

The intensity‐scan (I‐scan) technique to study the polarization‐dependent, nonlinear
processes in exfoliated bulk ReS2 is utilized. The polarization‐dependent reflection and …

Graphdiyne (GDY) is a rising star among carbon allotropes, which represents the
development trend and research direction of carbon materials in the field of ultrafast …

As one of the hottest 2D materials, black phosphorus (BP) exhibits a narrow band gap, high
carrier mobility, exceptional photoelectric and thermoelectric properties. Nevertheless, easy …

The high-power lasers have important implications for present and future light-based
technologies; therefore, the protection measures against their high-intensity radiation are …

Abstract Hematin anhydride (β-hematin), the synthetic analogue of the malaria
pigment,“hemozoin”, is a heme dimer produced by reciprocal covalent bonds among …

The development of graphene-based materials for optical limiting functionality is an active
field of research. Optical limiting for femtosecond laser pulses in the infrared-B (IR-B)(1.4–3 …

Due to the increased application of lasers in different fields (industry, medicine, etc.), there is
a growing need for new laser sources with good beam quality and variable emission …