physics

Dusty Cool Cosmos

Sponsors & Collaborators: 

Ali Institute of Education

Registration: 
Open to all.
Date: 
3 September, 2013
Time: 
10 am
Venue: 
Ali Institute of Education, Ferozepur Road (Shahrah-e-Roomi), near Children Hospital, Lahore.
Abstract: 

This talk will take you for a quick walk through the Universe. Todays universe as we know it, is indeed dusty. More than 30% of the UV and optical light from stars in the Universe may be absorbed and re-radiated thermally at infrared and millimeter wavelengths by the obscuring dust. The cool and dusty sites in the Universe provide seeds for the formation of molecules and organic compounds. These molecular clouds are actually stellar nurseries which give rise to star formation and its evolution. To study dust extinction and its properties, Gamma-ray burst after-glows are excellent probes. This topic will cover that what we know about dust and how do we study it.

 

The venue can located on the map given below.

 


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Resource People: 
Speaker
Dr. Tayyaba Zafar
Assistant Professor, University of the Punjab.

KSS Camps at the Buraq Camp, Islamabad

Sponsors & Collaborators: 
Registration: 
Registration is required.
Date: 
24 December, 2012
Time: 
9 am
Venue: 
Buraq Camp, Chak Shehzad, Islamabad
Abstract: 

Khwarizmi Science Society is going to participate in the 9th Buraq camp which is going to be held from 19th of December to 31st of December 2012. KSS will be joining on 24th of December and will be delivering four lectures on different topics, which include:

  • The Strange, Strange World of Quantum Physics and Quantum Computing.
  • A Gentle Introduction to Solar Thermal Energies.
  • Earthquakes: The  true story.
  • Cosmology and Us.
Resource People: 
Speaker
Dr. Sabieh Anwar
Khwarizmi Science Society
Presenter
Ahmed Waqas Zubairi
Khwarizmi Science Society
Speaker
Kumail Abbas
Khwarizmi Science Society
Presenter
Abdullah Khalid
Khwarizmi Science Society
Presenter
Hassaan Bukhari
Khwarizmi Science Society

Venus's Transit

Registration: 
Open to all.
Date: 
6 June, 2012
Time: 
5:00 am to 9:30 am
Venue: 
Live broadcasting at KSS's channel of NSN (http://www.nightskiesnetwork.com/)
Abstract: 

On 6th June from sunrise to about 09:30 AM Venus will pass through the disk of our sun. Our resident astronomer Umair Asim will live broadcast it through Khwarizmi Science Society's Channel of Night Skies Network using sophsticated Halpha solar filters and and a C14 Scope.

For most living humans June 5/6, 2012 will be their last chance to see Venus cross in front of the Sun. The last transit of Venus occurred in 2004, but after this June the world will have to wait until 2117 for the next one.

This historic viewing will also give us a chance of measuring the earth-sun distance. So keep in touch with us.

In order to join this event, please logon to the Society's channel on Night Skies Network! See you there.

Resource People: 
Broadcaster
Umair Asim
Sr. Vice Principal at Farooqi Girls High School, Lahore.

Inventing with Light - A Personal Journey

Sponsors & Collaborators: 
Registration: 
Open to all.
Date: 
06 April, 2012
Time: 
02:45 pm
Venue: 
Lecture Hall 10-301, 3rd Floor, LUMS School of Science and Engineering, Opposite Sector U, D.H.A. Lahore.
Abstract: 

This talk highlights the inventing process – the preparation involved and the small steps to the greater achievements. From his early days as a school boy in Karachi and Lahore to the foundational technology training sites in Chicago, Pasadena, and Schenectady-New York, relayed is a personal journey as an inventor for solving pressing problems in international level engineering and in higher education for Pakistan.

Resource People: 
Speaker
Professor Dr. Nabeel A. Riza
Head of UCC Department of Electrical & Electronic Engineering, Ireland.

Lecture Series on Graphene Physics

Sponsors & Collaborators: 

Department of Physics, School of Science and Engineering, Lahore University of Management Sciences (LUMS)

Registration: 
Registration is required.
Date: 
Friday, 20 May 2011; Saturday, 21 May 2011 and Sunday, 22 May 2011
Time: 
3 pm; 10 am and 10 am (respectively)
Venue: 
Lecture Hall 10-301, 3rd floor, LUMS School of Science and Engineering, Opposite Sector U, D.H.A. Lahore
Abstract: 

Registration is free of cost but required. To register visit this link.

 

Graphene is an emerging material, like a rising star on the horizon of physics. Acclaiming the Nobel Prize in physics in 2010, the two dimensional crystal continues to surprise us with new physics as well as new applications that are destined to reach the commercial sphere.

 

In this lecture series, we have invited Pakistan's two most distinguished scientists to discuss the fundamental physics. The understanding of graphene has opened up new doors of inquiry. What immediately catches our attention is the emergence of new physics: relativistic quantum effects, which previously, are only the ambit of high energy physicists. With graphene, for example, it is now possible to mimick these high energy effects on the tabletop. This lecture series aims at:

 

  • describing relativistic quantum mechanics,
  • understanding how the charge carriers in graphene are massless Dirac fermions,
  • understanding the electronic structure of this two dimensional material,
  • unravelling some of its exciting transport and structural properties, and
  • appreciating the role of disorder in graphene.
  •  

Schedule

The schedule of the lecture series is as follows.

 

Friday, 20 May 2011 3-4 pm KS 1 What is graphene?
  4-5 pm RD 1 Introduction, Free particle, Dirac Equation (Derivation), Dirac Algebra, Dirac Equation in the presence of electromagnetic field.
  5-5:30 pm   Refreshments
  5:30-6:30 pm KS 2 Electronic structure of graphene (part 1)
Saturday, 21 May 2011 10-11 am RD 2 Dirac Chiral representation and Dirac Equation in 2- components form; prediction of magnetic moment of electron and spin. Dirac equation for Hydrogen like atoms (exact solution) and spin – orbit splitting of energy levels.
  11 am - 12 noon KS 3 Electronic structure of graphene (part 2)
  12 - 2 pm   Lunch and prayer break
  2-3 pm RD 3 Lorentz invariance of Dirac equation, Dirac bilinears (their transformation properties under Laurentz Transformation and parity); Particle current. Hole theory and existence of positron.
Sunday, 22 May 2011 10-11 am RD 4 Dirac equation in (1 + 2) dimensions and its relevance to Graphene. Inequivalent representations of Dirac Gamma-matrices (a feature of odd number of space – time dimensions). Role of parity in (1 + 2) dimensions and how it can be used for defining conserved chiral currents.
  11 am - 12 noon KS 4
Electronic structure of graphene (part 3)
  12-1 pm   Lunch and prayer break
  1-2 pm RD 5


Dirac equation for quasi-particles in graphene in an external electromagnetic field. Chiral symmetries and Chiral anomaly. Coulomb like problem in Graphene

 

 

 

Resource People: 
Lecturer
Prof. Riazuddin
National Centre for Physics, Islamabad
Keynote Speaker
Dr. Aslam Baiq
Department of Physics, Quaid-e-Azam University, Islamabad.
Tags:

The Japanese nuclear emergency

Video Interview
Registration: 
Open to all.
Date: 
March 18, 2011
Time: 
12:00 pm
Venue: 
Lahore
Abstract: 

In wake of current quakes, tsunami and consequent damage to nuclear power reactors and leakage of nuclear radiation, hundreds of thousands of Japanese are left struggling for survival. It has combined a natural disaster and the backfire from a technological monster. In this interview we will ask our learned guest about the scientific causes of earthquakes and tsunamis and how these natural disasters effect nuclear installations? What are the preventive measures against nuclear radiation fallout? As Pakistan is equally vulnerable to natural disasters and a country with many nuclear installations, so will also discuss the national context.

Resource People: 
Expert
Dr. Khalil Qureshi (H.I., S.I.)
Director Safety and Engineering, LUMS School of Science and Engineering

Lecture Series on Laser Fundamentals

[ ]
Celebrating 50 Years of Laser
Sponsors & Collaborators: 

LUMS School of Science and Engineering

Registration: 
Open to all.
Date: 
30 November, 2010 (Lecture-I)
Time: 
6:00 pm
Venue: 
10-302 Auditorium (3rd Floor), School of Science and Engineering, LUMS, Opposite Sector-U, DHA, Lahore.
Date: 
02 December, 2010 (Lecture-II)
Time: 
6:00 pm
Venue: 
10-302 Auditorium (3rd Floor), School of Science and Engineering, LUMS, Opposite Sector-U, DHA, Lahore.
Abstract: 

This series of two classroom lectures will cover the fundamentals of lasers: how they work, what are their characteristics and what are their important types. We will also discuss some of their exciting and useful applications in industry, medicine, communications, optical disks and art and culture. This is in celebration of 50 years of this exciting discovery. Science students (B.Sc. level) are especially welcome to attend. The lectures are in fact part of a semester long course on Atomic and Laser Physics.

Resource People: 
Lecturer
Dr Muhammad Sabieh Anwar
LUMS School of Science and Engineering
Internal References: 
Tags:

Harnessing Nuclear Energy

Sponsors & Collaborators: 

Department of Physics, University of the Punjab, Lahore.

Registration: 
Open to all.
Date: 
02 November, 2010
Time: 
10:00 am
Venue: 
Department of Physics, University of the Punjab, Quaid-e-Azam Campus, Lahore.
Abstract: 

Resource People: 
Speaker
Dr Khalil A. Qureshi
Director Engineering and Safety, LUMS School of Science and Engineering, Lahore.
Internal References: 

Laser Turns 50 (episode 2)

Second Symposium on Lasers
Sponsors & Collaborators: 
Registration: 
Registration is required.
Date: 
Saturday, 10 September 2011
Time: 
10:30 am
Venue: 
New Auditorium, National University of Computer and Emerging Sciences (FAST-NU), Faisal Town, Lahore
Abstract: 

For registration to this event, visit the Registration page.

 

Let there be Light: An Overview of Solid State Laser Technology (Dr. Tayyab Imran)

From Theodore Maiman’s small ruby laser to ultrafast Ti:Sapphire  laser technology, a solid state laser technology revolution, earning  important roles in scientific research,  engineering, medicine, materials working, and a host of other applications.  

 

The Use of Lasers in Opthalmology (Dr. Nadeem H. Butt)

 

 

Laser is a special light with variable wavelength and variable effect on different structures of the eyeball. The effects include ablation, disruption and coagulation. According to the wavelength and effects, the lasers can be grouped as Green laser, YAG laser, Excimer Laser and CO2 Laser.
 
These Lasers are used for different disorders of the eye which range from disorders of the ocular surface to the disorders deep inside the eyeball including retina.
 
There are many diseases which used to remain untreated or had interventrial and surgical treatments. Most of them can now be treated with ease and comfort on day care basis not requiring admission and hospitalization.
 
The Physics, delivery system, uses, effects and after effects of lasers will be covered in the presentation.

 

Laser Assisted Pump-probe Studies of Atoms (Dr. Aslam Baig)

 

Laser assisted spectroscopic technique have been exploited to study the highly excited states of atoms; a pump probe experiment. In this technique, at least two dye lasers are required; the first dye laser serves as an exciting laser whereas the second laser serves as an ionizing laser. A Nd:YAG laser SHG (533nm, 500 mJ) and THG (355 nm, 200 mJ) is used  to pump the TDL-90 dye laser (line width »0.08 cm-1) and locally fabricated dye lasers (line width »0.25 cm-1) for multi-step or multi-photon excitation/ ionization of atoms. The ions are detected either in a thermionic diode ion detector or in an atomic beam apparatus. We have also utilized the polarization properties of the laser beams to measure the photoionization cross sections of the excited states of atoms. A few examples of the spectra will be presented in addition to the latest experimental results on the photoionization of atoms from the Free Electron Laser Source (FLASH).

Resource People: 
Keynote Speaker
Dr. Aslam Baig
Department of Physics, Quaid-e-Azam University, Islamabad.
Speaker
Dr. Tayyab Imran
School of Science and Engineering, LUMS, Lahore.
Presenter
Umair Asim
Vice Principal, Farooqi Girls High School, Lahore.
Speaker
Activities: 

High Energy Astrophysics and the Origin of Cosmic Rays

Registration: 
Registration is required.
Date: 
21 May, 2010
Time: 
10 am
Venue: 
Institute of Biochemistry and Biotechnology, University of the Punjab, Quaid-e-Azam Campus, Lahore
Abstract: 

The origin of Galactic cosmic-ray ions has remained an enigma for almost a century. Although it has generally been thought that they are accelerated in the shock waves associated with powerful supernova explosions—for which there have been recent claims of evidence—the mystery is far from resolved. Cosmic rays, which are mostly protons, but also other ions and electrons, permeate our Galaxy and rain down on earth continuously, night and day. Although cosmic rays were discovered almost a century ago, back in the balloon age, their origins remain unclear even now. Almost no effort has been spared in pursuing this long-standing mystery: satellites, rockets and balloons have been launched, and enormous detector arrays have been installed on the ground and even under mountains and seas. I will give a historical overview of the search for the mysterious origin of cosmic rays and a report on the current status.

Resource People: 
Speaker
Dr. Yousaf Butt
Harvard-Smithsonian Centre for Astrophysics, United States
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