Related Experiment Video
Updated: Feb 11, 2026
05:02
Growth of Gold Dendritic Nanoforests on Titanium Nitride-coated Silicon Substrates
Published on: June 3, 2019
6.9K
Correlation between electrical direct current resistivity and plasmonic properties of CMOS compatible titanium
Optics Express
|May 3, 2018
Summary
Titanium nitride (TiN) thin films
Area of Science:
- Plasmonics
- Materials Science
- Nanophotonics
Background:
- Surface plasmon polaritons (SPPs) are crucial for nanoscale optical phenomena.
- Titanium nitride (TiN) is a promising material for plasmonic applications at telecom wavelengths.
- Understanding factors influencing SPP propagation in TiN is essential for device development.
Purpose of the Study:
- To investigate the relationship between electrical resistivity and surface plasmon polariton damping distances in TiN thin films.
- To evaluate the relevance of direct current (dc) electrical resistivity for characterizing TiN plasmonic properties.
- To explore the impact of oxygen content on the plasmonic performance of TiN films.
Main Methods:
- Measurement of SPP damping distances in TiN films at 1.55 μm.
- Correlation of damping distances with dc electrical resistivity.
- Investigation using the Drude model with parameters from spectroscopic ellipsometry.
- Analysis of TiN films with varying oxygen content.
Main Results:
- SPP damping distances in TiN/Air decrease non-linearly from 40 to 16 μm as resistivity increases from 28 to 130 μΩ·cm.
- A near-unique dependence of damping distance on dc resistivity was found, validating its use for performance evaluation.
- Lower oxygen content in TiN films correlates with improved plasmonic performance.
Conclusions:
- DC electrical resistivity is a key parameter for assessing TiN plasmonic performance at telecom frequencies.
- Enhanced SPP damping distances in low-resistivity, low-oxygen TiN are attributed to reduced plasmon confinement, not lower absorption.
- TiN films with low oxygen content offer superior plasmonic properties for optical applications.
Related Concept Videos
01:10Electrical Current
7.2K
Electrical current is defined as the rate at which charge flows. When there is a large current present, such as that used to run a refrigerator, a large amount of charge moves through the wire in a small amount of time. If the current is small, such as that used to operate a handheld calculator, a small amount of charge moves through the circuit over a long period of time. The SI unit for current is the ampere (A), named for the French physicist André-Marie Ampère (1775–1836).
7.2K
01:15Sources and Properties of Electric Charge
12.9K
All objects we see around us consist of atoms, which combine to form molecules. The lightest element in the universe is hydrogen, and a hydrogen atom consists of a positively charged proton and a negatively charged electron. The magnitude of charge that a proton and an electron carry are the same, and it is the fundamental unit of charge. In SI units, it is 1.602 times 10-19 coulomb.
Most atoms additionally constitute another fundamental particle, the neutron. It carries no electrical charge. A...
Most atoms additionally constitute another fundamental particle, the neutron. It carries no electrical charge. A...
12.9K
01:25Properties of Electric Field Lines
9.6K
The definition of electric field lines greatly eases the visualization of electric fields, a vector field, especially in the presence of many charges. The one-to-one correspondence between the electric field and the electric field lines necessitates that the field lines follow some rules.
For one, the electric field of a positive charge must originate from it. That is because its electric field points away from it. Moreover, since the magnitude of the field asymptotes to zero at infinity, the...
For one, the electric field of a positive charge must originate from it. That is because its electric field points away from it. Moreover, since the magnitude of the field asymptotes to zero at infinity, the...
9.6K
02:20Correlations
36.5K
Correlation means that there is a relationship between two or more variables (such as ice cream consumption and crime), but this relationship does not necessarily imply cause and effect. When two variables are correlated, it simply means that as one variable changes, so does the other. We can measure correlation by calculating a statistic known as a correlation coefficient. A correlation coefficient is a number from -1 to +1 that indicates the strength and direction of the relationship between...
36.5K
01:27Correlation and Causation
42.9K
Statistical tests can calculate whether there is a relationship, or correlation, between independent and dependent variables. An indirect relationship of the variables signifies a correlation, while a direct relationship shows causation. If it is determined that no connection exists between the variables, then the correlation is a coincidence.
Correlation versus Causation
If the dependent variable increases or decreases when the independent variable increases, there is a positive or negative...
Correlation versus Causation
If the dependent variable increases or decreases when the independent variable increases, there is a positive or negative...
42.9K
01:09Correlation
15.2K
In statistics, two variables are said to be correlated if the values of one variable are associated with the other variable. Depending on the relationship between two variables, correlation can be of three types– positive correlation, negative correlation, and zero correlation.
Two variables, for example, a and b, are said to be positively correlated if both variables move in the same direction. In other words, a positive correlation exists between two variables, a and b, if:
Two variables, for example, a and b, are said to be positively correlated if both variables move in the same direction. In other words, a positive correlation exists between two variables, a and b, if:
15.2K