grating – TechConnect Briefs

Coupled surface plasmon resonance on rotated sinusoidal gratings at different azimuthal orientations

Csete M., Szalai A., Tóth E., Somogyi A., Balázs J., Szabó G., University of Szeged, HU

Theoretical study was performed on rotated grating coupling phenomenon on multilayers comprising 416 nm periodic sinusoidal polymer gratings with 35 nm modulation amplitude aligned on a bimetal film made of gold and silver layers. The [...]

Plasmonic structure integrated single-photon detectors for absorptance and polarization contrast maximization

Csete M., Szenes A., Maráczi D., Bánhelyi B., Csendes T., Szabó G., University of Szeged, HU

Superconducting nanowire single photon detectors (SNSPDs) are important for single-photon detection at 1550 nm infrared wavelength in quantum information processing (QIP), telecommunication and astronomy [1, 2]. Absorptance of single photons with a specific polarization has [...]

Patterning of Periodic Structures Using Continuously Moving Stage

Klingfus J., Sanabia J.E., Burcham K.E., Kahl M., Raith USA, US

A unique EBL writing technique is presented which is ideally suited to patterns of a periodic nature such as gratings, holograms, photonic crystals, sieves, etc. In contrast to classic step-and-write EBL strategies, this technique writes [...]

An Improved Micro Injection Molding Technique for Grating Devices

Li H.S., Liu K.C., Hsieh W.H., Au L.K.C., Liu K.C., National Chung Cheng University, TW

There is a new method about grating fabrication in our submission abstract. This method can help us to fabricate micro or nano devices more easily and inexpensively. I think it is very suitable for this [...]

Fracture-induced polymeric grating structures

Lin C.C., Yang F., Chin J.W., Sung L., Lee S., National Tsing Hua Univesity, TW

Fracture-induced structure (FIS)1 is found in the polymeric thin film sandwiched between two relatively rigid flat plates by inserting a razor blade at one edge. FIS is a potential candidate to be a low-cost and [...]

Arrayed, Piezoelectrically-Actuated Mirrors and Gratings for Spectrometer

Chen S.J., Chi D., Lo J., Kim E.S., University of Southern California, US

This paper describes a technology for a compact spectrometer based on a 2D piezoelectric mirror and/or grating array. The piezoelectric mirror/grating array is composed of angularly movable, 2-D array of micromirrors/microgratings that is supported on [...]

Optical Micro-Spectrometer with Sub-Nanometer Resolution

Avrutsky I., Chaganti K., Salakhutdinov I., Auner G., Wayne State University, US

We develop a super compact optical fluorescence spectrometer. Our unique innovative design combines advantages of guided wave planar optics and free-space microoptics. This innovation allows for miniaturization that is not achievable with pure planar or [...]

A Tunable Dispersive Optical System

Shieh K-W, Hsieh J., Chou H-Y, Precsion Instrument Development Center, TW

Pitch-tunable gratings can find many applications and have been widely investigated. However, they are limited to out-of plane type, which increase the cost for alignment and assembly. Instead, an in-plane type can built more micro [...]