Near-field characterization of planar photonic-crystal-waveguide structures

Author(s):  
Sergey I. Bozhevolnyi ◽  
Valentyn S. Volkov
2005 ◽  
Author(s):  
R. Wuest ◽  
Benjamin C. Buchler ◽  
Rik Harbers ◽  
Patric Strasser ◽  
K. Rauscher ◽  
...  

2020 ◽  
Vol 117 (47) ◽  
pp. 29422-29430
Author(s):  
J.-B. Béguin ◽  
Z. Qin ◽  
X. Luan ◽  
H. J. Kimble

Observations of thermally driven transverse vibration of a photonic crystal waveguide (PCW) are reported. The PCW consists of two parallel nanobeams whose width is modulated symmetrically with a spatial period of 370 nm about a 240-nm vacuum gap between the beams. The resulting dielectric structure has a band gap (i.e., a photonic crystal stop band) with band edges in the near infrared that provide a regime for transduction of nanobeam motion to phase and amplitude modulation of an optical guided mode. This regime is in contrast to more conventional optomechanical coupling by way of moving end mirrors in resonant optical cavities. Models are developed and validated for this optomechanical mechanism in a PCW for probe frequencies far from and near to the dielectric band edge (i.e., stop band edge). The large optomechanical coupling strength predicted should make possible measurements with an imprecision below that at the standard quantum limit and well into the backaction-dominated regime. Since our PCW has been designed for near-field atom trapping, this research provides a foundation for evaluating possible deleterious effects of thermal motion on optical atomic traps near the surfaces of PCWs. Longer-term goals are to achieve strong atom-mediated links between individual phonons of vibration and single photons propagating in the guided modes (GMs) of the PCW, thereby enabling optomechanics at the quantum level with atoms, photons, and phonons. The experiments and models reported here provide a basis for assessing such goals.


Author(s):  
P.L. Phillips ◽  
J.C. Knight ◽  
B.J. Mangan ◽  
P.S.J. Russell ◽  
M.D.B. Charlton ◽  
...  

2004 ◽  
Author(s):  
Benoit Cluzel ◽  
Davy Gerard ◽  
Emmanuel Picard ◽  
Thomas Charvolin ◽  
Vincent Calvo ◽  
...  

2009 ◽  
Vol 1191 ◽  
Author(s):  
Elisa Guillermain ◽  
Philippe M. Fauchet

AbstractMiniaturized and highly sensitive bio-sensors are attractive in various applications, such as medicine or food safety. Photonic crystal (PhC) microcavities present multiple advantages for rapid and accurate label-free optical detection. But their principle of operation (i.e. observation of a peak in transmission) makes their integration in serial arrays difficult. We present in this paper a multi-channel sensor consisting of several resonant PhC microcavities coupled to the same waveguide. The transmission spectrum shows as many dips as there are cavities, and each of the microcavities can act as an independent sensor. Preliminary results show the fabrication and characterization of a double-channel structure with small defects used as a solvent sensor.


2006 ◽  
Vol 14 (4) ◽  
pp. 1643 ◽  
Author(s):  
Maxim Abashin ◽  
Pierpasquale Tortora ◽  
Iwan Märki ◽  
Uriel Levy ◽  
Wataru Nakagawa ◽  
...  

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