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Metal film materials have been widely used in optical devices, green energy field, biosensor technologies, and so on. In these applications, the properties of metal surface play the significant role. However, propagation characteristics of light in metal-based materials are still confusing. Wavelength-dependent refraction going from negative to positive at air/metal interface was reported in previous...
We present an approach that maintains full optical resolution in imaging deep within scattering media. Imaging depth of 11.5 times the scattering mean free path was achieved with near-diffraction-limit resolution of 1.5 μm.
The transition from benchtop to clinical system often requires the medical technology to be robust, portable and accurate. This poses a challenge to current swept source optical coherence tomography imaging systems, as the bulk of the systems footprint is due to laser components. With the recent advancement of micromachining technology, we demonstrate the characterization of a microelectromechanical...
Clinicians are faced with an ever-increasing plethora of choices for the early detection of life-threatening medical conditions, such as heart disease or cancer. Many of these pathologies require invasive biopsy procedures to verify the presence and stage of disease progression. Once identified the patient must then undergo treatment, where current imaging techniques lack the resolution for treatment...
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