Scattering-type scanning near-field optical microscopy (s-SNOM) allows spectroscopic imaging with spatial resolution below the diffraction limit. With suitable light sources, s-SNOM is instrumental in numerous discoveries at the nanoscale. So far, the light sources have been limited to continuous wave or high-repetition-rate pulsed lasers. Low-repetition-rate pulsed sources cannot be used, due ...

Near-field scanning optical microscope (NSOM or SNOM) is a form of scanning probe microscope (SPM), which is used to observe the optical properties of a sample surface with a nanometer-scale spatial resolution. Since the near-field light strongly interacts with the sample surface, or with nanometer-scale objects on the substrate's surface, NSOM is advantageous to excite only the vicinity of a s...

We show that transmission SNOM (T-SNOM) can be used for imaging optical intensity distributions in a photonic crystal resonator with a resolution better than 100 nm. Two alternatives are explored: contact and tapping mode operation. ©2007 Optical Society of America OCIS codes: (180.5810 ) Scanning microscopy; (170.4520) Optical confinement and manipulation; (130.3120) Integrated optics devices;...

We have developed a new easy-to-use probe that can be used to combine atomic force microscopy (AFM) and scanning near-field optical microscopy (SNOM). We show that, using this device, the evanescent field, obtained by total internal reflection conditions in a prism, can be visualized by approaching the surface with the scanning tip. Furthermore, we were able to obtain simultaneous AFM and SNOM ...

The influence of the near-field probe-tip on a model sample consisting one-dimensional apertures is investigated using scanning optical microscopy (SNOM). We use finite-difference time-domain (FDTD) simulations combined with SNOM scans to show that has rather profound effect shape measured transmission intensity profiles. By taking into account perturbations introduced by probe, our newly devel...

Abstract A wide variety of near-field optical phenomena are described by the interaction dipole radiation with a nanophotonic system. The electromagnetic field due to excitation is associated Green’s function. It great interest investigate photonic system and measure function quantities it describes, e.g., local cross density states. However, measuring requires point-source simultaneous detecti...

BACKGROUND The civilian literature has expanded the indications for selective nonoperative management (SNOM) for abdominal trauma to minimize morbidity from nontherapeutic laparotomies (NTLs); however, this treatment modality remains controversial and rare in austere settings. This study aimed to quantify the percentage of NTL and incidence of failed SNOM performed in theater and to define each...

We present a terahertz (THz) scattering near-field optical microscope (s-SNOM) based on a quantum cascade laser implemented as both source and detector in a self-mixing scheme utilizing resonant quartz tuning forks as a sensitive nanopositioning element. The homemade s-SNOM, based on a resonant tuning fork and metallic tip, operates in tapping mode with a spatial resolution of ∼78 nm. The quant...