scholarly journals Direct measurement of the near-field super resolved focused spot in InSb

2012 ◽  
Vol 20 (9) ◽  
pp. 10426 ◽  
Author(s):  
A.C. Assafrao ◽  
A.J.H. Wachters ◽  
M. Verheijen ◽  
A.M. Nugrowati ◽  
S.F. Pereira ◽  
...  
Keyword(s):  
Direct Measurement ◽  
Near Field

Direct measurement of the absolute value of the interaction force between the fiber probe and the sample in a scanning near-field optical microscope

2002 ◽  
Vol 81 (8) ◽  
pp. 1503-1505 ◽  
Author(s):  
D. A. Lapshin ◽  
V. S. Letokhov ◽  
G. T. Shubeita ◽  
S. K. Sekatskii ◽  
G. Dietler
Keyword(s):  
Direct Measurement ◽  
Near Field ◽  
Interaction Force ◽  
Optical Microscope ◽  
Fiber Probe ◽  
Absolute Value ◽  
The Absolute

Direct measurement of optical phase in the near field

2000 ◽  
Vol 76 (5) ◽  
pp. 541-543 ◽  
Author(s):  
P. L. Phillips ◽  
J. C. Knight ◽  
J. M. Pottage ◽  
G. Kakarantzas ◽  
P. St. J. Russell
Keyword(s):  
Direct Measurement ◽  
Near Field ◽  
Optical Phase

Application of fibre-optic rotational seismometer in investigation of seismic rotational waves

2008 ◽  
Vol 16 (3) ◽  
Author(s):  
L. Jaroszewicz ◽  
Z. Krajewski
Keyword(s):  
Experimental Data ◽  
Direct Measurement ◽  
Seismic Waves ◽  
Near Field ◽  
Seismic Events ◽  
Fibre Optic ◽  
Simultaneous Application ◽  
New Device ◽  
Rotational Waves ◽  
Rotation Component

AbstractApplication of a fibre-optic Sagnac interferometer as a rotational seismometer is presented in this paper. It is a new device which parameters (sensitivity equal to 4.3×10−8 rad/s for 2σ) are comparable with the parameters of typical mechanical rotational seismometers. However, a direct measurement of rotation without influence of linear motions for fibre-optic rotational seismometer designed it for a direct measurement of a ground rotation component. Experimental data obtained during simultaneous application of the above two types of sensors are also presented. Research of near-field seismic events, the amplitude of which has been identified in the range of 1.5×10−6 rad/s to 2×10−7 rad/s, shows directly that, so-called, seismic rotational waves exist independently of typical seismic waves generated during earthquakes.

scholarly journals Casimir Forces Out of Thermal Equilibrium Near A Superconducting Transition

2021 ◽  
Author(s):  
Shunashi Guadalupe Castillo-López ◽  
Raúl Esquivel-Sir ◽  
Giuseppe Pirruccio ◽  
Carlos Villarreal
Keyword(s):  
Direct Measurement ◽  
Thermal Effects ◽  
Thermal Equilibrium ◽  
Near Field ◽  
Zero Point ◽  
Comprehensive Analysis ◽  
Superconducting Transition ◽  
Casimir Forces ◽  
Point Energy ◽  
Plate Distance

Abstract We present a comprehensive analysis of the out-of-equilibrium Casimir pressure between two high-T c superconducting plates, each kept at a different temperature. Two interaction regimes can be distinguished. While the zero-point energy dominates in the near field, thermal effects become important at large interplate separations causing a drop in the force’s magnitude compared with the usual thermal-equilibrium case. Our detailed calculations highlight the competing role played by propagating and evanescent modes. Moreover, as one of the plates undergoes the superconducting transition, we predict a sudden discontinuity in the force for any plate distance, which has not been previously observed in other systems. The sensitivity of the dielectric function of the high-T c superconductors makes them ideal systems for a possible direct measurement of the out-of-equilibrium Casimir pressure.

scholarly journals Direct Measurement of Blast Pressure in Near Field with Lead Plate Blast Pressure Meter

2012 ◽  
Vol 22 (1) ◽  
pp. 54-59
Author(s):  
Young-Hun Ko ◽  
Hyong-Doo Jang ◽  
Hyung-Sik Yang
Keyword(s):  
Direct Measurement ◽  
Near Field ◽  
Blast Pressure ◽  
Lead Plate ◽  
Pressure Meter
Sign in / Sign up

Export Citation Format

Share Document