Kotaro Kajikawa
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Explore the profile of Kotaro Kajikawa including associated specialties, affiliations and a list of published articles.
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Articles
26
Citations
86
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Recent Articles
1.
Toma M, Namihara S, Kajikawa K
Anal Methods
. 2023 May;
15(22):2755-2760.
PMID: 37254755
Sensitive detection of a tumor marker, neuron-specific enolase (NSE), was performed by a label-free direct immunoassay based on a colorimetric plasmonic biosensor. Reflective plasmonic colors of silver nanodome arrays provided...
2.
Thanh Tam H, Kajikawa K
Opt Express
. 2021 Nov;
29(22):35191-35205.
PMID: 34808958
We report an extraordinary transmission (EOT) of gold-capped silica microsphere monolayers in the mid-infrared range of 5-25 μm. The observed transmittance is significantly greater than that of a flat gold...
3.
Kumar R, Kajikawa K
Opt Express
. 2020 Mar;
28(2):1507-1517.
PMID: 32121859
We report that cylindrical hyperbolic metamaterials (CHMMs) exhibit superscattering (SSc) in the visible region, based on analytical and numerical calculations. It has normalized scattering cross-section (NSCS) twice as large as...
4.
Syahir A, Kajikawa K, Mihara H
Protein Pept Lett
. 2017 Dec;
25(1):34-41.
PMID: 29237369
Background: Direct bio-monitoring essentially involves optical means since photon has insignificant effects over biomolecules. Over the years, laser induced surface Plasmon resonance method with various modifications as well as versatile...
5.
Nagai Y, Shao-Chieh C, Kajikawa K
Appl Opt
. 2017 Nov;
56(32):8969-8972.
PMID: 29131184
A random laser of a photonic crystal fiber (PCF) with holes filled with laser dye-doped nematic liquid crystal (NLC) is reported. When the excitation polarization was along the PCF axis,...
6.
Wakamatsu T, Fujimura R, Kajikawa K
Appl Opt
. 2017 Feb;
56(3):482-486.
PMID: 28157902
On silver thin film, an organic semiconductor rubrene layer consisting of a planar waveguide exhibits spectrally narrowing photoluminescence (PL) spectra with an increasing emission angle, which are compared with those...
7.
Wakao M, Watanabe S, Kurahashi Y, Matsuo T, Takeuchi M, Ogawa T, et al.
Anal Chem
. 2016 Dec;
89(2):1086-1091.
PMID: 27989122
Optical fiber-type Sugar Chips were developed using localized surface plasmon resonance (LSPR) of gold (Au) nanoparticles. The endface of an optical fiber was first aminosilylated and then condensed with α-lipoic...
8.
Syahir A, Usui K, Tomizaki K, Kajikawa K, Mihara H
Microarrays (Basel)
. 2016 Sep;
4(2):228-44.
PMID: 27600222
Protein microarray technology has gone through numerous innovative developments in recent decades. In this review, we focus on the development of protein detection methods embedded in the technology. Early microarrays...
9.
Yamamoto K, Togawa R, Fujimura R, Kajikawa K
Opt Express
. 2016 Aug;
24(17):19026-31.
PMID: 27557182
Strong temperature dependence of anti-Stokes luminescence intensity from Rhodamine 101 is used to probe local temperature variation at a surface region in the attenuated total reflection geometry (ATR), when heating...
10.
Ebihara Y, Ota R, Noriki T, Shimojo M, Kajikawa K
Sci Rep
. 2015 Nov;
5:15992.
PMID: 26530514
We report on a black metamaterial of gold fabricated on a lotus leaf that was used as a template. In spite of the extremely thin gold coating (10-nm thick) on...