We experimentally demonstrate two-photon absorption with broadband down-converted light (squeezed vacuum). Although incoherent and exhibiting the statistics of a thermal noise, broadband down-converted light can induce two-photon absorption with the same sharp temporal behavior as femtosecond pulses, while exhibiting the high spectral resolution of the narrow band pump laser. Using pulse-shapin...

The application of surface plasmon resonance (SPR) measurements to the study of ultrathin organic and inorganic films adsorbed onto gold surfaces utilizing nearinfrared (NIR) excitation from 800 to 1152 nm is described. SPR scanning angle measurements of film thickness are demonstrated at 814 and 1152 nm using lowpower diode and HeNe laser sources, respectively. Several advantages of SPR in the...

In this paper, we proposed a phase shifting Lau phase interferometry for the measurement of the focal length of a lens. The fundamentals of this application are discussed and the basis of the phase map interpretation is outlined. A three step phase-shifting algorithm is used to depict the phase maps of a lens-like test object and an application for measuring the focal length of a lens is report...

The intense pulsed light (IPL) and laser technologies are widely used for skin rejuvenation and for treating several dermatological disorders such as skin dyschromia and acne, and for non-ablative dermal remodeling of rhytides and hypertrophic scars. Technological evolution is rapid. The High Power Pulsed Light™ [HPPL™] and Incoherent Fast Light™ technologies [IFL™, Novavision Group S.p.A., 208...

Excitation of molecules by incident incoherent electromagnetic radiation, such as sunlight, is described in detail and contrasted with the effect coherent (e.g. laser) light. The nature quantum coherences induced former, relevant to transport processes technology, emphasized. Both equilibrium steady state scenarios are discussed, Three examples: simple models, calcium excitation polarized light...

Background: Induction of cellular response after exposure to electromagnetic fields is limited to coherent fields. An incoherent noise field is supposed to suppress the bioeffects of regular RF electromagnetic fields. The purpose of this study was to investigate the effect of GSM mobile phone-induced radiofrequency (RF) on the induction of oxidative stress in SP2/0 cell line. Materials and Meth...

The Compton scattering process plays significant roles in atomic and molecular physics, condensed matter nuclear physics material science. It could provide useful information on the electromagnetic interaction between light matter. Several aspects of many-body such us electronic structures, electron momentum distributions, interactions bound electrons, etc., can be revealed by experiments. In t...

Stimuli to excitable cells and various cellular processes can cause cell surface deformations; for example, when membrane potentials are altered during action potentials. However, these changes may be at or below the diffraction limit (in dendrites structures measured as small 1 µm), imaging by traditional methods is challenging. Using dual lenses incoherent holography lattice light-sheet (IHLL...