This document discusses different types of microscopy techniques used to view and study materials and structures not visible to the naked eye. It describes optical microscopy, scanning probe microscopy including scanning tunneling microscopy and atomic force microscopy, and electron microscopy. It provides examples of images obtained using these different microscopic methods and discusses their working principles and applications in fields like biology, chemistry, physics, nanotechnology, and security screening. Microscopy allows magnifying objects up to 1500 times their original size and provides resolution down to the nanometer scale, enabling greater understanding of material properties and structures.
Cathodoluminescence in Geosciences - DELMICDelmic B.V.
Cathodoluminescence imaging is an ideal tool for studying geological samples and to get an additional contrast and spectroscopic information down to the resolution of a scanning electron microscope.
The SPARC is a high-performance cathodoluminescence detection system that is designed and produced by Delmic. With this system, Delmic offers a unique solution for cathodoluminescence imaging, especially geology application.
With this presentation, you can get an insight into different aspects of cathodoluminescence on the topic. For questions about cathodoluminescence and the SPARC, please leave a comment below or visit www.delmic.com and send us a message.
If you would like to download more application notes about cathodoluminescence in geosciences, please find them at this link:
http://www.delmic.com/geology
Bionanotech: Molecular Plasmonics in medicine and nanobiosensorsMd. Siddikur Rahman
Bionanotechlogy like nanomedicine and nanobiosensors based on molecular plasmonics. Using the application of localized surface plasmon resonance based on EM. SERS raman spectoscopy and many more application.
Cathodoluminescence in Geosciences - DELMICDelmic B.V.
Cathodoluminescence imaging is an ideal tool for studying geological samples and to get an additional contrast and spectroscopic information down to the resolution of a scanning electron microscope.
The SPARC is a high-performance cathodoluminescence detection system that is designed and produced by Delmic. With this system, Delmic offers a unique solution for cathodoluminescence imaging, especially geology application.
With this presentation, you can get an insight into different aspects of cathodoluminescence on the topic. For questions about cathodoluminescence and the SPARC, please leave a comment below or visit www.delmic.com and send us a message.
If you would like to download more application notes about cathodoluminescence in geosciences, please find them at this link:
http://www.delmic.com/geology
Bionanotech: Molecular Plasmonics in medicine and nanobiosensorsMd. Siddikur Rahman
Bionanotechlogy like nanomedicine and nanobiosensors based on molecular plasmonics. Using the application of localized surface plasmon resonance based on EM. SERS raman spectoscopy and many more application.
Cathodoluminescence for Gallium Nitride Semiconductor MaterialsDelmic B.V.
Cathodoluminescence can be used to study ceramics, dielectrics and semiconductors (both in bulk and nanostructured materials) and to determine their light-emitting properties at the nanoscale.
This presentation helps you to understand how cathodoluminescence works and its application for gallium nitride semiconductor materials.
The SPARC is a high-performance cathodoluminescence detection system that is designed and produced by Delmic. Using our cathodoluminescence system, you will get a valuable source of information and a full experimental freedom with an open-source software and modularity of the system.
For questions about cathodoluminescence and the SPARC, please leave a comment below or visit www.delmic.com and send us a message.
If you would like to download more application notes about cathodoluminescence for materials science please find them at this link:
http://www.delmic.com/cathodoluminescence-materials-science
What is time-resolved cathodoluminescence?Delmic B.V.
Time-resolved cathodoluminescence is a technique in which the time dynamics of the cathodoluminescence emission process is observed.
This presentation will give you an overview of the time-resolved cathodoluminescence techniques: lifetime imaging (or emission decay) and g(2) imaging, which is also known in physics as second-order correlation function.
The SPARC is a high-performance cathodoluminescence detection system designed and produced by Delmic, which offers a unique solution for cathodoluminescence imaging. With the Delmic LAB Cube (a time-resolved CL module) for the SPARC, it is possible to extend the SPARC to do lifetime and antibunching experiments.
For questions about cathodoluminescence, the SPARC and the LAB Cube, please leave a comment below or
visit www.delmic.com and send us an email.
In cathodoluminescence imaging, an electron beam is used to excite nanostructures and the cathodoluminescence detector is subsequently used to detect the produced light.
Cathodoluminescence emission can be used to explore many fundamental properties of matter. It can be used to study light transport, scattering, electronic structure of a material, resonant phenomena and much more. It thus presents a valuable source of information for fundamental research as well as applied research with a direct link to industry.
The SPARC is a high-performance cathodoluminescence detection system that is designed and produced by Delmic. With this system, Delmic offers a unique solution for cathodoluminescence imaging.
In this presentation, we share the knowledge about the cathodoluminescence technique and point out the key advantages of using cathodoluminescence imaging in different areas.
For questions about cathodoluminescence and the SPARC, please leave a comment below or visit www.delmic.com and send us a message.
A universal challenge facing the development of electrochemical materials is our lack of understanding of physical and chemical processes at local length scales in 10-100 nm regime, and acquiring this understanding requires a new generation of imaging techniques that can resolve local chemistry and fast dynamics in electrochemical materials at the time and length scales relevant to strongly coupled reaction and transport phenomena. In this article, we introduce the scanning thermo-ionic microscopy (STIM) technique for probing local electrochemistry at the nanoscale, utilizing Vegard strain induced via thermal stress excitations for imaging. We have implemented this technique using both resistive heating through a microfabricated AFM thermal probe, as well as photo-thermal heating through a 405 nm laser, and have applied it to a variety of electrochemical materials. The dynamics of ionic motion can be captured from point-wise spectroscopy studies, while the spatial inhomogeneity can be revealed by STIM mapping. Since it utilizes thermal stress-induced oscillation as its driving force, the responses are insensitive to the electromechanical, electrostatic, and capacitive effects, and is immune to global current perturbation, making in-operando testing possible. In principle, STIM can provide a powerful tool for probing local electrochemical functionalities at the nanoscale.
In these work, new nano and micro thermoplastic based composite is prepared with zeolite filler, The method involves using zeolite in powder form, the preparation of zeolite powder from ores by crushing it into small - sized granules. The characteristics of the zeolite powder are determined. The physical properties and chemical composition (XRD) are evaluated before impeding it into the thermoplastic. Thermoplastics powder are added to the zeolite powder as granules in different sizes, The particles sizes ranging from the size of a millimeter to nanometer. The manufacturing quality parameters are optimized at volume percentages of filler in the range 20 to 25 % , composite material is formed into molds. New Composite material is characterized by easy deformation into different shapes beside machine ability. The characteristics of new composite such as SEM, EDX,FTIR in absorption and transmission mode are evaluated and compared with the standard characteristics of Zeolite ores. The performance and characteristics of the new composite are completely different. The new composite is hard, solid and does not absorb water. The work end with list of recommendation about the new field and expected application of Zeolite when using it as filler in thermoplastic based micro and nano composites.
Application of non destructive test for structural health monitoring - state ...eSAT Journals
Abstract
The concept of non-destructive testing (NDT) is to obtain material properties “in place” specimens without the destruction of the specimens and to do the structural health monitoring. NDT using Rebound hammer, Ultra pulse velocity, Half-cell potential, core cutter, carbonation depth, rebar locator, Rapid chloride penetration test, electric resistivity meter test and vibration base analysis by data analoger are very popular and highly effective in conducting structural health monitoring. The structure can be investigated by using a visual inspection, NDT, laboratory and field test performance. In this article a review of these tests have been provided to conduct effective structural health monitoring of a RCC structure
Keywords: Non-destructive test, visual inspection, corrosion, compressive strength
Cathodoluminescence for Gallium Nitride Semiconductor MaterialsDelmic B.V.
Cathodoluminescence can be used to study ceramics, dielectrics and semiconductors (both in bulk and nanostructured materials) and to determine their light-emitting properties at the nanoscale.
This presentation helps you to understand how cathodoluminescence works and its application for gallium nitride semiconductor materials.
The SPARC is a high-performance cathodoluminescence detection system that is designed and produced by Delmic. Using our cathodoluminescence system, you will get a valuable source of information and a full experimental freedom with an open-source software and modularity of the system.
For questions about cathodoluminescence and the SPARC, please leave a comment below or visit www.delmic.com and send us a message.
If you would like to download more application notes about cathodoluminescence for materials science please find them at this link:
http://www.delmic.com/cathodoluminescence-materials-science
What is time-resolved cathodoluminescence?Delmic B.V.
Time-resolved cathodoluminescence is a technique in which the time dynamics of the cathodoluminescence emission process is observed.
This presentation will give you an overview of the time-resolved cathodoluminescence techniques: lifetime imaging (or emission decay) and g(2) imaging, which is also known in physics as second-order correlation function.
The SPARC is a high-performance cathodoluminescence detection system designed and produced by Delmic, which offers a unique solution for cathodoluminescence imaging. With the Delmic LAB Cube (a time-resolved CL module) for the SPARC, it is possible to extend the SPARC to do lifetime and antibunching experiments.
For questions about cathodoluminescence, the SPARC and the LAB Cube, please leave a comment below or
visit www.delmic.com and send us an email.
In cathodoluminescence imaging, an electron beam is used to excite nanostructures and the cathodoluminescence detector is subsequently used to detect the produced light.
Cathodoluminescence emission can be used to explore many fundamental properties of matter. It can be used to study light transport, scattering, electronic structure of a material, resonant phenomena and much more. It thus presents a valuable source of information for fundamental research as well as applied research with a direct link to industry.
The SPARC is a high-performance cathodoluminescence detection system that is designed and produced by Delmic. With this system, Delmic offers a unique solution for cathodoluminescence imaging.
In this presentation, we share the knowledge about the cathodoluminescence technique and point out the key advantages of using cathodoluminescence imaging in different areas.
For questions about cathodoluminescence and the SPARC, please leave a comment below or visit www.delmic.com and send us a message.
A universal challenge facing the development of electrochemical materials is our lack of understanding of physical and chemical processes at local length scales in 10-100 nm regime, and acquiring this understanding requires a new generation of imaging techniques that can resolve local chemistry and fast dynamics in electrochemical materials at the time and length scales relevant to strongly coupled reaction and transport phenomena. In this article, we introduce the scanning thermo-ionic microscopy (STIM) technique for probing local electrochemistry at the nanoscale, utilizing Vegard strain induced via thermal stress excitations for imaging. We have implemented this technique using both resistive heating through a microfabricated AFM thermal probe, as well as photo-thermal heating through a 405 nm laser, and have applied it to a variety of electrochemical materials. The dynamics of ionic motion can be captured from point-wise spectroscopy studies, while the spatial inhomogeneity can be revealed by STIM mapping. Since it utilizes thermal stress-induced oscillation as its driving force, the responses are insensitive to the electromechanical, electrostatic, and capacitive effects, and is immune to global current perturbation, making in-operando testing possible. In principle, STIM can provide a powerful tool for probing local electrochemical functionalities at the nanoscale.
In these work, new nano and micro thermoplastic based composite is prepared with zeolite filler, The method involves using zeolite in powder form, the preparation of zeolite powder from ores by crushing it into small - sized granules. The characteristics of the zeolite powder are determined. The physical properties and chemical composition (XRD) are evaluated before impeding it into the thermoplastic. Thermoplastics powder are added to the zeolite powder as granules in different sizes, The particles sizes ranging from the size of a millimeter to nanometer. The manufacturing quality parameters are optimized at volume percentages of filler in the range 20 to 25 % , composite material is formed into molds. New Composite material is characterized by easy deformation into different shapes beside machine ability. The characteristics of new composite such as SEM, EDX,FTIR in absorption and transmission mode are evaluated and compared with the standard characteristics of Zeolite ores. The performance and characteristics of the new composite are completely different. The new composite is hard, solid and does not absorb water. The work end with list of recommendation about the new field and expected application of Zeolite when using it as filler in thermoplastic based micro and nano composites.
Application of non destructive test for structural health monitoring - state ...eSAT Journals
Abstract
The concept of non-destructive testing (NDT) is to obtain material properties “in place” specimens without the destruction of the specimens and to do the structural health monitoring. NDT using Rebound hammer, Ultra pulse velocity, Half-cell potential, core cutter, carbonation depth, rebar locator, Rapid chloride penetration test, electric resistivity meter test and vibration base analysis by data analoger are very popular and highly effective in conducting structural health monitoring. The structure can be investigated by using a visual inspection, NDT, laboratory and field test performance. In this article a review of these tests have been provided to conduct effective structural health monitoring of a RCC structure
Keywords: Non-destructive test, visual inspection, corrosion, compressive strength
Introduction
The applications of microscopy in the forensic sciences are almost limitless. This is due in large measure to the ability of
microscopes to detect, resolve and image the smallest items of evidence, often without alteration or destruction. As a
result, microscopes have become nearly indispensable in all forensic disciplines involving the natural sciences. Thus, a
firearms examiner comparing a bullet, a trace evidence specialist identifying and comparing fibers, hairs, soils or dust, a
document examiner studying ink line crossings or paper fibers, and a serologist scrutinizing a bloodstain, all rely on
microscopes, in spite of the fact that each may use them in different ways and for different purposes.
The principal purpose of any microscope is to form an enlarged image of a small object. As the image is more greatly
magnified, the concern then becomes resolution; the ability to see increasingly fine details as the magnification is
increased. For most observers, the ability to see fine details of an item of evidence at a convenient magnification, is
sufficient. For many items, such as ink lines, bloodstains or bullets, no treatment is required and the evidence may
typically be studied directly under the appropriate microscope without any form of sample preparation. For other types of
evidence, particularly traces of particulate matter, sample preparation before the microscopical examination begins is
often essential. Types of Microscopes Used in the Forensic Sciences
A variety of microscopes are used in any modern forensic science laboratory. Most of these are light microscopes which
use photons to form images, but electron microscopes, particularly the scanning electron microscope (SEM), are finding
applications in larger, full service laboratories because of their wide range of magnification, high resolving power and
ability to perform elemental analyses when equipped with an energy or wavelength dispersive X-ray spectrometer.
Introduction of Nanotechnology
Applications of Nano technology
Scanning Electron Microscope
Principle
Construction
Working
Advantages
Dis-Advantages
Conclusion
References
its about the microscopes types and there significance in the world for diagnostic purposes .advantages and disadvantages of the types of different microscopes
these slides gives information about the types of microscopy. microscopy is divided into two type on the bases of their application which are stereoscopic and biological microscope. another types of microscopy are optical microscope, electron microscope, x-ray microscope and also scanning probe microscopy which perform many function.
2. MICROSCOPY AS A MODERN TECHNOLOGY:
It is a technical science that deals with the development of microscope
techniques to view and study the properties of the material not visible by
naked eyes.
This is a very modern science that is developed to understand the variety
of different materials through variety of microscopic analysis.
It is very necessary in our today’s scientific study to know about the compounds,
molecules that are present in the materials , objects , substances under
consideration. We have to understand the structure and molecular arrangements
to know about the properties and behavior of that material.
In the study of such properties, microscopy leads the field of technology to
know better about the compounds.
Using microscopy, one can magnify the objects upto 1500x than the original size.
Example: Optical Microscope.
6. WORKING PROCEDURE OF SCANNING TUNNELING MICROSCOPE:
A voltage bias is applied and the tip is brought close to the sample by coarse
sample-to-tip control, which is turned off when the tip and sample are sufficiently
close. At close range, fine control of the tip in all three dimensions when near the
sample is typically piezoelectric, maintaining tip-sample separation W typically
in the 4-7 Å (0.4-0.7 nm) range, which is the equilibrium position between
attractive (3< W < 10Å) and repulsive (W < 3Å) interactions.
In this situation, the voltage bias will cause electrons to tunnel between the tip and sample,
creating a current that can be measured. Once tunneling is established, the tip's bias
and position with respect to the sample can be varied and data are obtained from the
resulting changes in current.
T.E.
7. WORKING PROCEDURE OF ATOMIC FORCE MICROSCOPE:
As the cantilever is displaced along the sample surface so does the direction of the laser
beam reflection changes along the surface of the photodiode resulting into the image
formation with the help of detector and feedback electrical equipments.
8. A T.E.M. IMAGE OF POLIO VIRUS OF 30 NM IN SIZE.
A S.T.M. IMAGE OF GOLD(100).
A S.T.M. IMAGE
OF
SiC SURFACE.
MAGNIFIED IMAGE OF POLLENS USING S.E.M.
9. A CBP officer of Field Operations Department checking the authenticity
of a travel document using the optical microscope at an International Airport.
10. ADVANTAGES AND USEFULNESS OF MICROSCOPY:
Microscopy has many types of microscopic devices for various purposes; due to which
we can have the desired resolution of the object we want to magnify and view.
Furthermore it’s precision and sharpness is to a such high extent which is of the order
of Nano meter(10-9m) or much higher.
Better resolutions mean better images and greater understanding and Microscopy is
a total advantage for such things.
Utility is diverse with Microscopy. Every type of microscope has a special use to
produce a high resolution image of a particular material.
The research and development in field of Biology has a very important and notable
usage of Microscopes which has always been fascinating and wonderful.
Example: Development of Cell Theory is totally based on Microscopic Methods.
Also in other fields like Chemistry and Physics Microscopy holds a very important use.
Example: Semiconductors; Neurology ; etc.
11. FIELDS OF APPLICATIONS OF MICROSCOPY:
• There are variety of applications of this technique based on the type of Microscope
used.
• All modern fields and fields like Life Sciences and Physics make most of the use of
Microscopy.
• Fields like Nanotechnology, Nanochemistry , Nanophysics , Semiconductors ,
Neuroscience, physiology etc. make use of this technique.
• In areas of non scientific approach also, we can see a very useful application of
Microscopy like International Airports, Megamalls, Universities etc.
• Thus Microscopy has a very useful advantage of making things highly magnified
to view better and understand the objects in a very smart way.
12. Nature is beautiful and things are like objects of Nature…Keep understanding…