First Overtone Frequency Stimulated Quartz Tuning Fork Used for Shear-Force Scanning Near-Field Optical Microscopy

2003 ◽  
Vol 20 (11) ◽  
pp. 1928-1931 ◽  
Author(s):  
Liu Sheng ◽  
Sun Jia-Lin ◽  
Sun Hong-San ◽  
Tan Xiao-Jing ◽  
Shi Shuo ◽  
...  
Keyword(s):  
Optical Microscopy ◽  
Shear Force ◽  
Tuning Fork ◽  
Near Field ◽  
Quartz Tuning Fork

Shear Force Detection Using Single-Tine Oscillating Tuning Fork for Scanning Near-Field Optical Microscopy

2003 ◽  
Vol 20 (3) ◽  
pp. 338-341 ◽  
Author(s):  
Tan Xiao-Jing ◽  
Sun Jia-Lin ◽  
Liu Sheng ◽  
Guo Ji-Hua ◽  
Sun Hong-San
Keyword(s):  
Optical Microscopy ◽  
Shear Force ◽  
Tuning Fork ◽  
Near Field ◽  
Force Detection

scholarly journals True Tapping Mode Scanning Near-Field Optical Microscopy with Bent Glass Fiber Probes

Scanning ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-9
Author(s):  
A. Smirnov ◽  
V. M. Yasinskii ◽  
D. S. Filimonenko ◽  
E. Rostova ◽  
G. Dietler ◽  
...  
Keyword(s):  
Glass Fiber ◽  
Optical Microscopy ◽  
Shear Force ◽  
Near Field ◽  
Double Resonance ◽  
Quartz Tuning Fork ◽  
Tapping Mode ◽  
Bending Radius ◽  
Force Mode ◽  
Fiber Probes

In scanning near-field optical microscopy, the most popular probes are made of sharpened glass fiber attached to a quartz tuning fork (TF) and exploiting the shear force-based feedback. The use of tapping mode feedback could be preferable. Such an approach can be realized, for example, using bent fiber probes. Detailed analysis of fiber vibration modes shows that realization of truly tapping mode of the probe dithering requires an extreme caution. In case of using the second resonance mode, probes vibrate mostly in shear force mode unless the bending radius is rather small (ca. 0.3 mm) and the probe’s tip is short. Otherwise, the shear force character of the dithering persists. Probes having these characteristics were prepared by irradiation of a tapered etched glass fiber with a CW CO2 laser. These probes were attached to the TF in double resonance conditions which enables achieving significant quality factor (4000–6000) of the TF + probe system (Cherkun et al., 2006). We also show that, to achieve a truly tapping character, dithering, short, and not exceeding 3 mm lengths of a freestanding part of bent fiber probe beam should also be used in the case of nonresonant excitation.

Intense Pulsed Light-Treated Near-Field Electrospun Nanofiber on a Quartz Tuning Fork for Multimodal Gas Sensors

2020 ◽  
Vol 12 (21) ◽  
pp. 24308-24318 ◽  
Author(s):  
Danny Wong ◽  
Osama Abuzalat ◽  
Juhee Ko ◽  
Jungchul Lee ◽  
Seonghwan Kim ◽  
...  
Keyword(s):  
Gas Sensors ◽  
Tuning Fork ◽  
Near Field ◽  
Quartz Tuning Fork ◽  
Intense Pulsed Light ◽  
Electrospun Nanofiber ◽  
Pulsed Light
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