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Chin. Opt. Lett.
Research Highlights
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Influence of laser contrast on high-order harmonic generation from solid-density plasma surfaces

The influence of laser temporal contrast on high-order harmonic generation from intense laser interactions with solid-density plasma surfaces is experimentally studied. A switchable plasma mirror system is set up to improve the contrast by two orders of magnitude at 10 ps prior to the main peak. By using the plasma mirror and tuning the prepulse, the dependence of high-order harmonic generation on...
Intense keV IAP generation by orthogonally polarized multicycle midinfrared two-color laser fields

We theoretically investigate the attosecond pulse generation in an orthogonal multicycle midinfrared two-color laser field. It is demonstrated that multiple continuum-like humps, which consist of about twenty orders of harmonics and an intensity of about one order higher than the adjacent normal harmonics, are generated when longer wavelength driving fields are used. By filtering these humps, inte...
Gradation representation method using a binary-weighted computer-generated hologram based on pulse-width modulation

We propose a simple gradation representation method using a binary-weighted computer-generated hologram (CGH) to be displayed on a high-speed spatial light modulator that can be controlled by the pulse-width modulation technique. The proposed method uses multiple bit planes comprising binary-weighted CGHs with various pulse widths. The object points of a three-dimensional (3D) object are assigned ...
Experimental assessment of a 3-D plenoptic endoscopic imaging system

An endoscopic imaging system using a plenoptic technique to reconstruct 3-D information is demonstrated and analyzed in this Letter. The proposed setup integrates a clinical surgical endoscope with a plenoptic camera to achieve a depth accuracy error of about 1 mm and a precision error of about 2 mm, within a 25 mm×25 mm field of view, operating at 11 frames per second.
Announcements
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Feature Issue Announcement:Advances in Metasurfaces [31/08/2017]

Chinese OpticsLetters (COL) invites original manuscriptsubmissions for a Special Issue on Advancesin Metasurfaces to be publishedin May 2018. Metasurface refers to a type of artificial thin film materialswith sub-wavelength featu...
COL Cover Story: Plasma Mirror: An Effective System for High-order Harmonic Generation [08/08/2017]

Generation of light pulses with shorter duration for diagnosing and controlling the ultrafast processes in microcosm has been a subject of strong scientific interest. Femtosecond laser pulses can be extensively produced by the self-m...
COL Cover Story: A new scheme of generating intense keV isolated attosecond pulses [30/06/2017]

The generation of intense isolated attosecond pulses (IAPs) covering the keV regime has become a hot topic at present due to their practical applications such as biological imaging, X-ray diffraction, attosecond pump-probe dynamics. ...
COL Cover Story: Gradation representation method using a binary-weighted computer-generated hologram based on pulse-width modulation [09/06/2017]

Holography can directly record and faithfully reconstruct a three-dimensional (3D) image. A computer-generated hologram (CGH) is a holographic interference pattern obtained by calculating the light propagated from a 3D object using a...
COL Cover Story: Experimental assessment of a 3D plenoptic endoscopic imaging system [31/03/2017]

A realistic three-dimensional (3D) reconstruction of a surgical site has become a highly needed imaging method in minimally invasive surgery. To date, common clinical and research efforts have employed 3D reconstruction methods based...
COL Cover Story: Auxiliary Resonant Scanner to Increase the Scanning Capability for Coarse Integral Holographic Displays [31/03/2017]

The light propagation reconstruction feature supported by holography can provide all necessary 3D visual information, in theory. Therefore, holographic display has been considered as the promising candidate of the futuristic 3D ...
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