Characteristic analysis of optical sensors by integrating a circular-hole defect with on-chip spectrometer

Author(s):  
Xiang Zhou ◽  
Yuanzhou Li ◽  
Jun Song
2012 ◽  
Vol 20 (21) ◽  
pp. 24093
Author(s):  
Jun Song ◽  
Xiang Zhou ◽  
Yuan-zhou Li ◽  
Xuan Li

2012 ◽  
Vol 20 (17) ◽  
pp. 19226 ◽  
Author(s):  
Jun Song ◽  
Xiang Zhou ◽  
Yuan-zhou Li ◽  
Xuan Li

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Van Duong Ta ◽  
Rui Chen ◽  
Handong Sun

AbstractMicrolasers with controllable polarization of output emission are vital for on-chip optical communications, optical sensors and optical switches. In this work, we report a high quality (Q) factor, low-threshold polymer microfiber laser and the possibility of achieving laser emission with a desired polarization. The microfiber is fabricated by direct drawing from a dye-doped polymer solution and it can generate whispering gallery mode (WGM) lasing under optical pulse excitation. When the microfiber is pumped from the side with pumping direction perpendicular to the microfiber’s axis, the polarization direction of the output laser is found to be the same as that of the pump laser. Lasing emission with either transverse electric (TE) or transverse magnetic (TM) modes can be obtained and these two polarization states can be switched over by tuning the pumping laser. Furthermore, emission with both TE and TM modes can also be observed by changing the orientation of the microfiber relatively to pumping direction. Our finding provides an effective approach for achieving microlasers that have high Q lasing modes with anticipated polarization.


2015 ◽  
Vol 340 ◽  
pp. 116-120 ◽  
Author(s):  
Ao Shen ◽  
Chen Qiu ◽  
Longzhi Yang ◽  
Tingge Dai ◽  
Yubo Li ◽  
...  
Keyword(s):  

2013 ◽  
Vol 448-453 ◽  
pp. 396-401
Author(s):  
Nuno Miguel Matos Pires ◽  
Tao Dong

Routine analysis of steroid hormones in environmental water samples demands for cost-effective tools that can detect multiple targets simultaneously. This study reports a high-throughput polymer platform integrated to polymer optical sensors for on-site monitoring of hormones in water. This opto-microfluidic device concept is fully compatible to low-cost fabrication methods. A competitive chemiluminescence immunoassay was performed onto gold thin film coated chambers, and a detection resolution of roughly 0.2 ng/mL was obtained using 17β-estradiol as the model target. Furthermore, the integrated polymer platform showed good recovery for the estradiol target when spiked in surface water samples.


1991 ◽  
Vol 57 (534) ◽  
pp. 430-435
Author(s):  
Juhachi ODA ◽  
Tetsuo NISHINURA ◽  
Katurou TOMITA ◽  
Takeshi SAWAGUCHI ◽  
Kouichirou SAKAI
Keyword(s):  

Lab on a Chip ◽  
2012 ◽  
Vol 12 (5) ◽  
pp. 901 ◽  
Author(s):  
Karthik Reddy ◽  
Yunbo Guo ◽  
Jing Liu ◽  
Wonsuk Lee ◽  
Maung Kyaw Khaing Oo ◽  
...  

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