Improving images from a near-field scanning microwave microscope using a hybrid probe

Kim, Jooyoung; Kim, Myungsick; Kim, Hyun; Song, Doohee; Lee, Kiejin; Friedman, Barry
August 2003
Applied Physics Letters;8/4/2003, Vol. 83 Issue 5, p1026
Academic Journal
We fabricated a near-field scanning microwave microscope (NSMM) using a hybrid tip combining a reduced length of the tapered part with a small apex. In order to understand the function of the probe, we fabricated three different tips using a conventional chemical etching technique and observed three different NSMM images for patterned Cr films on glass substrates. These probe tips were coupled to a high-quality dielectric resonator at an operating frequency f=4.46 GHz. By using the hybrid tip, we demonstrated an improved, high-contrast NSMM image of lambda phage DNA on a glass substrate. © 2003 American Institute of Physics.


Related Articles

  • Microwave Pulse Compression in a Chain of Ring-Type Resonators. Danilov, Yu. Yu.; Taı, M. L. // Technical Physics;Apr2001, Vol. 46 Issue 4, p460 

    Compression of a rectangular chirp-pulse waveform by a chain of nondissipative ring-type resonators is studied theoretically. A three-resonator chain is shown to be capable of compressing a microwave pulse by a factor of 8 with an almost 80% efficiency.

  • Characteristics of microwave radiation from copper-containing fullerene resonators at liquid-nitrogen temperatures. Kon’kov, O. I.; Prikhod’ko, A. V. // Technical Physics Letters;Oct99, Vol. 25 Issue 10, p820 

    An investigation is made of the radiative microwave properties (43 GHz frequency) of an open dielectric resonator based on a copper-containing fullerene membrane. It is established that a broad emission peak exists in the range 90-110 K caused by an increase in the resonator Q factor in this...

  • Improvement of cylindrical microwave cavities using a TE01n mode. Iddings, C. K. // Review of Scientific Instruments;Aug1986, Vol. 57 Issue 8, p1593 

    The usual cylindrical microwave cavity for the TE[sub 011] mode has sidewalls made ora closely spaced helix of enameled magnet wire. This wirewound construction splits off the degenerate, low Q, TM[sub 111] mode and thus raises the effective cavity Q. We propose a cavity design which, in...

  • Near-field scanning microwave microscope using a dielectric resonator. Kim, Jooyoung; Lee, Kiejin; Friedman, Barry; Cha, Deokjoon // Applied Physics Letters;8/4/2003, Vol. 83 Issue 5, p1032 

    We describe a near-field scanning microwave microscope which uses a high-quality dielectric resonator with a tunable screw. The operating frequency is f = 4.5 GHz. The probe tip is mounted in a cylindrical resonant cavity coupled to a dielectric resonator for the TE[SUB011] mode. We tuned the...

  • Determination of Moisture Content in Mortar at Near Relaxation Frequency 17 GHz. Jusoh, M. A.; Abbas, Z.; Lee, K. Y.; You, K. Y.; Norimi, A. M. // Measurement Science Review;2011, Vol. 11 Issue 6, p203 

    The knowledge of moisture content in cement based material is important especially for the safety in field work. In this paper, a non-destructive and contactless free space method is used for measurement of moisture content in cement based materials (mortar) at microwave frequencies. The...

  • Characterization of a Dielectric E-Plane Loaded Waveguide by the NMVF: Application to Filters Design. Lilonga-Boyenga, Désiré; Okoumou-Moko, Gilbert // Journal of Applied Sciences;2007, Vol. 7 Issue 24, p3983 

    The rectangular E-plane dielectric loaded metallic waveguide equivalent circuit with dielectric of an arbitrary shape, occupying all height of the waveguide is established using the New Multimodal Variational Formulation (NMVF). The advantage of this rigorous approach compared to the traditional...

  • The Features of the Characteristics of Forced Whispering-Gallery Modes in an Ellipsoidal Dielectric Resonator with Small Eccentricity. Kirichenko, A. Ya.; Kogut, A. E.; Kutuzov, V. V.; Solodovnik, V. A. // Radiophysics & Quantum Electronics;Apr2003, Vol. 46 Issue 4, p281 

    We study experimentally the whispering-gallery modes excited in a dielectric ellipsoidal resonator by a lumped-parameter radiation source and through distributed coupling of a dielectric resonant structure with a dielectric waveguide. Peculiarities of the formation of mode fields and spectra for...

  • K-BAND HARMONIC DIELECTRIC RESONATOR OSCILLATOR USING PARALLEL FEEDBACK STRUCTURE. Du, Y. C.; Tang, Z. X.; Zhang, B.; Su, P. // Progress in Electromagnetics Research Letters;2012, Vol. 34, p83 

    A novel K-band harmonic dielectric resonator oscillator (DRO) is presented. Two identical parallel feedback DROs constitute a symmetric structure by sharing the same dielectric resonator (DR). As a result of this special structure, the odd frequency output components offset while the even...

  • Low-power near-field microwave applicator for localized heating of soft matter. Copty, A.; Sakran, F.; Golosovsky, M.; Davidov, D.; Frenkel, A. // Applied Physics Letters;6/21/2004, Vol. 84 Issue 25, p5109 

    We report a 9 GHz near-field microwave probe for local surface heating of microwave absorbing materials. The probe radiates microwave energy through a narrow slot microfabricated at the apex of the dielectric resonator. The microwave energy is concentrated in a small region close to the...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics