Split ring resonator sensors for infrared detection of single molecular monolayers

Cubukcu, Ertugrul; Shuang Zhang; Yong-Shik Park; Bartal, Guy; Xiang Zhang
July 2009
Applied Physics Letters;7/27/2009, Vol. 95 Issue 4, p043113
Academic Journal
We report a surface enhanced molecular detection technique with zeptomole sensitivity that relies on resonant coupling of plasmonic modes of split ring resonators and infrared vibrational modes of a self-assembled monolayer of octadecanthiol molecules. Large near-field enhancements at the gap of split ring resonators allow for this resonant coupling when the molecular absorption peaks overlap spectrally with the plasmonic resonance. Electromagnetic simulations support experimental findings.


Related Articles

  • Electromagnetic modelling of few-moded Winston cones in the far-infrared. Gleeson, Emily; Murphy, J. Anthony; Church, Sarah E.; Colgan, Ruth; O’Sullivan, Cre´idhe // AIP Conference Proceedings;2002, Vol. 616 Issue 1, p295 

    Winston cones have traditionally been used as detector feeds in far-infrared cosmological experiments, such as SuZIe, the Sunyaev-Zel’dovich Infra-red Experiment [1] on the CSO. They are usually designed using ray tracing, which becomes a very poor approximation when the number of spatial...

  • Intersubband absorption in Ga1-xAlxSb/AlSb superlattices for infrared detection. Xie, H.; Piao, J.; Katz, J.; Wang, W. I. // Journal of Applied Physics;9/15/1991, Vol. 70 Issue 6, p3152 

    Deals with intersubband absorption in Ga[sub1-x]Al[subx]Sb/AlSb superlattices for infrared detection. Technique for the induction of intersubband transitions; Overview of a theoretical study on superlattice band structures and absorption coefficients; Limitations of Ga[sub1-x]Al[subx]Sb/AlSb...

  • Analysis of normal-incident absorption in a proposed p-type very-narrow-quantum-well infrared.... Man, P.; Pan, D.S. // Applied Physics Letters;1/17/1994, Vol. 64 Issue 3, p321 

    Examines the normal-incident absorption in a p-type narrow-quantum-well infrared photodetector. Use of direct transitions between heavy and light hole-like subbands in structures; Impact of overlap integrals of envelope functions on infrared absorption; Advantage of narrow quantum wells in...

  • Infrared and far-infrared laser magnetic resonance spectroscopy of the GeH radical: Determination of ground state parameters. Brown, John M.; Evenson, K. M.; Sears, Trevor J. // Journal of Chemical Physics;10/1/1985, Vol. 83 Issue 7, p3275 

    The GeH radical has been detected in its ground 2Π state in the gas phase reaction of fluorine atoms with GeH4 by laser magnetic resonance techniques. Rotational transitions within both 2Π1/2 and 2Π3/2 manifolds have been observed at far-infrared wavelengths and rotational transitions...

  • Performance of high-sensitivity quantum Hall far infrared photodetectors. Kawaguchi, Y.; Hirakawa, K.; Saeki, M.; Yamanaka, K.; Komiyama, S. // Applied Physics Letters;1/7/2002, Vol. 80 Issue 1, p136 

    We have characterized the performance of a newly developed far-infrared photodetector which utilizes the cyclotron resonance of two-dimensional electrons in modulation-doped Al[sub 0.3]Ga[sub 0.7]As/GaAs heterojunctions in the integer quantum Hall regime. It is found that the responsivity and...

  • Inspired by nature, IR detector targets longwavelength applications. Memis, Omer Gokalp; Mohseni, Hooman // Laser Focus World;Apr2007, Vol. 43 Issue 4, p75 

    The article focuses on the need for single-photon detectors (SPDs), the ultimate photon sensors, in the infrared (IR) detector technology. The constant advances in technology has led to the demand of a better and more sensitive detectors, the SPDs, which are low-noise devices with increased...

  • Infrared sensors broaden scope of platform gas analysis. Markley, Jeff // Offshore;Nov95, Vol. 55 Issue 11, p141 

    Looks at the use of infrared gas detection in offshore applications. What was used before infrared technique; Information on infrared technology; Reference made to infrared sensors.

  • New devices warn pilots to avoid dangerous eruptions.  // Current Science;3/11/94, Vol. 79 Issue 14, p14 

    Reports on an infrared device being developed to warn pilots of dangerous volcanic eruptions. Features of the device; Purpose.

  • Build a super-sensitive heat detector. Campisi, Skip // Electronics Now;Aug98, Vol. 69 Issue 8, p35 

    Offers advice on building a ultra-sensitive infrared-sensing heat detector. Schematic diagram of the device; Power source; Materials needed; Alternate resistors needed.


Read the Article


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

Try another library?
Sign out of this library

Other Topics