Swinburne University of Technology

Shanghai Naguang Information Technology Corporation

Victoria University of Technology

Min Gu

Xiangping Li

Yaoyu Cao

Benjamin Mashford

Andrew John Smallridge

Ling Fu

Baohua Jia

Zongsong Gan

Haoran Ren

Xiaosong Gan

Damian Bird

Qiming Zhang

Daniel J Day

Xi Chen

Xianping Li

Provided are media, systems and methods for optical data storage. A nanocomposite material for use as an optical data recording medium comprises nanoparticles embedded in a host matrix, wherein the host matrix comprises a material having a high structural stability, and the nanoparticles comprise optical functional components having a first physical or chemical state and a property of permanent transition to a second physical or chemical state upon exposure to corresponding optical radiation, whereby information may be recorded in the first and second physical or chemical states of the optical functional components over an extended time period.

Media, systems and methods for optical data storage

A photovoltaic (PV) structure for generating electrical power from light, the structure including an enhancing layer for increasing the absorption of the light into the structure, the enhancing layer including: a wrinkled graphene layer configured to trap the light in the PV structure; and aluminum nanoparticles configured to scatter the light into the PV structure.

Photovoltaic structures, solar cell apparatuses and methods

Methods and apparatus for recording and retrieval of optically readable data employ a recording medium () which comprises an optically active material () able to induce a change in properties of the medium in the presence of optical radiation having a first characteristic, such as a first optical frequency, and wherein the change in properties can be inhibited by optical radiation having a second characteristic, such as a second optical frequency. During recording, a region of the recording medium () is irradiated with a first beam () of optical radiation having the first characteristic, the beam having a sufficient intensity within a central portion of the irradiated region and being of sufficient duration to cause an optically induced change in properties of the recording medium. Simultaneously, the region of the recording medium () is irradiated with a second beam () of optical radiation having the second characteristic, the second beam having a local intensity minimum within the central portion of the irradiated region, and a local intensity maximum in at least one portion of the irradiated region adjacent to the central portion which is sufficient to inhibit the optically induced change in properties of the recording medium. A similar method is employed for retrieval, however the intensity of the first beam () is reduced to prevent changes in material properties within the recording medium ().

Method and system for optical data storage

An imaging system including a multi-mode fiber and a gradient index (GRIN) lens. The invention also relates to a system including a multi-mode fiber, such as a double-clad photonic crystal fiber, for transmitting an excitation signal to a sample for the purpose of imaging, and a scanning mechanism, which preferably includes a microelectromechanical system (MEMS) mirror, for reflecting the excitation signal in varying directions in order to scan the sample.

Imaging system

A non-linear fluorescence microscope or endoscope includes: (a) a source of coherent light suitable to initiate non-linear fluorescence in a sample of interest located at a sample region; (b) a first light conductor positioned to receive at its terminal light from the light source and direct the light to a coupler; (c) a second light conductor located to receive light introduced to the coupler from the first conductor and direct the light to the sample via a sample end of the second conductor, the sample end also located to receive fluoresced light from the sample such that the second conductor may direct the fluoresced light to the coupler; and (d) a third light conductor located to direct fluoresced light from the coupler to a light detection device via a terminal of the third light conductor.

Tripartite fiber-coupled fluorescence instrument

A method of erasable/rewritable optical data storage is provided in which a laser beam from a laser () operated in either a pulsed or continuous wave mode is focussed by an optical system () onto a photorefractive polymeric material () to cause two photon excitation of the material to record data which may subsequently be erased by illuminating the material with radiation having a wavelength in the ultraviolet or visible spectrum to erase the recorded data. New photorefractive polymeric materials having a relatively narrow absorption band for use in the method are also disclosed.

Erasable/rewritable optical data storage with photorefractive polymers

Growing community of inventors

Doncaster, Australia

Min Gu