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Chin. Opt. Lett.
Research Highlights
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Fiber-based radio frequency dissemination for branching networks with passive phase-noise cancelation

  We demonstrate a new fiber-based radio frequency (RF) dissemination scheme suitable for a star-shaped branching network. Without any phase controls on the RF signals or the use of active feedback-locking components, the highly stable reference frequency signal can be delivered to several remote sites simultaneously and independently. The relative frequency stabilities of 6 \times 10-15/s and 7 \...
Novel calibration optical path of cryogenic radiometer

  We introduce a novel calibration optical path of the cryogenic radiometer, which can avoid the repeated dismounting measurement and eliminate the negative influence of Brewster window effect on calibration result. The novel calibration optical path is used to calibrate the absolute spectral responsivity of the standard transfer detector at 633 nm, the results of which are compared with the ones ...
Method of evaluation of a mirror surface figure based on frequency domain and its application for the Giant Steerable Science Mirror of the Thirty Meter Telescope

We propose a sub-aperture stitching algorithm based on a frequency domain that can be denoted as a power spectral density (PSD). Our algorithm is verified by the experimental data obtained from measuring a \phi 1.23 m mirror at the Changchun Institute of Optics, Fine Mechanics and Physics. Then, we apply it to the Great Steering Science Mirror (GSSM) of the Thirty Meter Telescope (TMT) with the si...
Radiography of a K\alpha X-ray source generated through ultrahigh picosecond laser–nanostructure target interaction

Laser-driven ultrafast X-ray sources are widely used for diagnostic radiography. However, there is a large divergence of fast electrons when they are generated by an intense short-pulse laser interacting with a foil target. We design a nanowire array target to achieve a more compact point X-ray source. Fast electrons are confined and guided by the nanowire array structure in order to generate a Kα...
Announcements
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COL Cover Story:New Fiber-based radio frequency dissemination scheme for branching networks [18/06/2015]

  Time is one of the earliest known fundamental physical quantities in nature. To maintain time synchronization between different places and establish unified time and frequency standards concern all aspects of the human production a...
COL Cover Story:Novel optical scheme based on cryogenic radiometer for successive calibration [22/05/2015]

  High accuracy of radiometric calibration is a prerequisite and guarantee for quantitative remote sensing. The traditional calibration method based on radiation source could not meet the requirement for further application of remote...
COL cover story: Novel Evaluation method of surface figure for large aperture reflecting mirror [17/04/2015]

  The thirty meter telescope (TMT) Project is an international partnership among USA, Canada, Japan, India, China as well as other top R&D nations. The sensitivity and the spatial resolution of telescope will be improved to by fa...
COL cover story: Small-spot X-ray irradiation from metal nanowire target [31/03/2015]

  In 1901, Wilhelm Rontgen received the first Nobel Prize in Physics for his discovery of X-rays. Nowadays, X-ray has been commonly used in medical, industrial detection, security inspection, scientific research, etc. Recently, with ...
COL cover story: 3D printed THz Plano-Convex Lens [24/03/2015]

  As one of the leading technologies in manufacturing, 3D printing, also known as additive manufacturing (AM), is based on additive processes, in which successive layers of material are laid down under computer control. 3D printing c...
Call for Papers: Multiphoton Processes Special Issue in Chinese Optics Letters [19/01/2015]

Guest Editors Zhizhan Xu, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences Ruxin Li, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences   SUBMISSION DEADLINE: 1st March, ...
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