Title of Thesis : Some Problems on the interaction of laser

radiation with matter.

Topics of the Thesis: i) Developing a theoretical model for

the ionization of gases by powerful pulses of laser

radiation, through cascade ionization processes

depending on the electron energy gain by inverse

Bremsstrahlung mechanism to study of the

phenomena associated with the breakdown of

gases by laser radiation,

ii) Theoretical modeling of the

instantaneous ionization of gases by brief flashes

of laser radiation through multi-photon ionization

mechanism.

Ph.D. Advisor:

Prof. Colyn Grey Morgan

Department of physics University

College of Swansea, Singleton park

Swansea SA2 8PP, South Wales,

UK

Dr.Colin Evans

Department of physics University

College of Swansea, Singleton park

Swansea SA2 8PP, South Wales,

UK

Major research field: Numerical Modeling for studying (i) the phenomenon of breakdown

of gases, liquids and solids by high power laser radiation basing on the solution of the

time dependent Boltzmann equation( Fokker Plank equation) considering the

processes of Multi-photon ionization and Inverse Bremsstrahlung absorption leading

to cascade ionization,(ii) laser ionization based on resonance saturation (LIBORS)of

alkali metal vapors , to investigate the instantaneous ionization of the vapor through

collisional processes including :Associative ionization, Penning ionization electron

impact excitation and ionization of the vapor atoms. The electron heating takes place

through super elastic collisions .Energy pooling collisions acts to populate the highly

excited states which contributes in the penning ionization process. The exact

correlation between the cross-section of each process and the electron energy is

considered.(iii) Investigation of Laser induced breakdown spectroscopy.(iv)Ultrafast

phenomenon in the breakdown of dielectrics by laser radiation which consider the

optical and mechanical effects of the laser interaction.

References :

Professor Lotfia El - Nadi

Department of physics faculty of science, Cairo

University, El - Giza, Egypt.

Professor S. L. Chin

Department of Physics and COPL Laval University -

Quebec , Qc GIK 7P4, Canada.

Tel: 418-656-3418 Fax: 418-656-2623

Knowledge of languages :

English(FLE level British Council

Egypt)

French (Primary - secondary

school level)

Arabic (Mother tongue language)

أشرفج عليها الخيرسائل الماجسخير

3

14

..

أشرفج عليها الخيالدكخوراه رسائل قائمت

Prof .Dr.V. Palleschi

Prof. DR. D von der

Linde

..

PUBLICATIONS

1-L. F. Abou Hadid, Yosr EE - D Gamal ,and A. El - Rayany (1976): “The triton

binding energy by a repulsive core potential", Proceeding of the mathematical

and physical society of Egypt, No. 41, 39 - 45.

2-C. J. Evans and Yosr E.E - D Gamal (1980): “Laser induced breakdown of

helium ", J. Phys. D: Appl. Phys. 13, 1447 - 57.

3-Yosr E.E-D Gamal and Abdel Harith (1981):" Molecular gas breakdown by

short Laser pulses ", J. Phys. D: Appl. Phys. 14, 2209 - 14.

4-Yosr E.E - D Gamal and Abdel Harith (1983): “Secondary ionization processes

in laser induced cascade ionization ", J. Phys. D: Appl. Phys. 16, 1901 - 06.

5-C. J. Evans and Yosr E.E - D Gamal (1984 ): " Breakdown of helium under

single mode Ruby Laser irradiation ", J. Phys. D: Appl. Phys. 17, 691 - 8.

6-Yosr E.E- D Gamal, I.M. Azzouz and M. El - Nady (1986): “Ruby laser

induced breakdown of argon”, Advances in laser science -1, Proceeding of AIP

conference, December 1985 Dallas USA, No. 1, 46, page 578 - 9

7-Yosr E.E - D Gamal and I.M. Azzouz (1987) :" Influence of the collision

frequency of the electron energy distribution function in laser - induced

discharge in argon ", J. Phys. D: Appl. Phys. 20, 187 - 192.

8-Yosr E.E- D Gamal and N.M. Abdel - Moneim (1987):" Theoretical study of

electrical breakdown in nitrogen by laser radiation at 1.06 µm", J. Phys. D: Appl.

Phys. 20,187 - 61.

9-N.M. Abdel - Moneim, Yosr E.E- D Gamal, M. El- Nady, and L. El- Nadi

(1987): “Secondary ionization processes in laser induced breakdown in

molecular gases ", J. Laser Sc. & Toc. 1, 37 - 43.

10-L. El - Nadi, L. Z .Ismail, Yosr E.E - D Gamal, and G. Abdel - Latif (1987):

" Laser induced breakdown in N2 - methanol gas mixtures ", J. Laser Sc. & Toc.

1, 22 - 26.

11-Yosr E.E- D Gamal (1988) : " The breakdown of molecular oxygen by brief

pulses of laser radiation ", J. Phys. D: Appl. Phys. 21, 1117 - 20.

12-Yosr E.E- D Gamal (1989): "On stepwise ionization processes in electrical

breakdown of molecular gases by laser irradiation ", J. Phys. D: Appl. Phys. 22,

385 - 389.

13-Yosr E.E- D Gamal and H.M. Abdel - Moneim (1990): “Investigations of

electrical breakdown of electronegative gases by laser irradiation ", J. Phys. D:

Appl. Phys. 23, 851 - 855.

14-Yosr E.E- D Gamal, M. S. Shafik and H.M. Abdel - Moneim (1991):

“Secondary ionization processes in laser induced breakdown of electronegative

gases laser irradiation ", J. Phys. D: Appl. Phys. 24, 1328 - 32.

15-Yosr E.E- D Gamal, S. S. Montasser and M. A. Mahmoud (1991) :

"Modeling of resonance ionization in laser exited metallic vapor " Proceeding of

ICPIG XX PISA, Italy, 8 - 12 July, Vol. 6, page 1259 .

16-Yosr E.E- D Gamal and M. S. Shafik ( 1992 ) : " Investigations of

breakdown of rare gases by short pulses of 1.06 m laser radiation ", Appl.

Phys. Comm.11( 2&3 ) 183 - 193.

17-Yosr E.E- D Gamal, I.M. Azzouz (1992): " On the effect of laser pulse

length on the threshold of breakdown of argon", Proceeding of GD 92

conference 13 - 18 September, Swansea, UK .

18-Yosr E.E- D Gamal and M. S. Shafik (1993):" Electrical breakdown in argon

by powerful pulses of ultraviolet laser radiation ", J. Phys. D: Appl. Phys. 26, 1-

6.

19-Yosr E.E- D Gamal, M. S. Shafik and M.M. Khalil (1993): “An investigation

of the wavelength -dependence of the threshold intensity of laser induced

breakdown of molecular hydrogen ", J. Phys. D: Appl. Phys. 26, 1993 - 40.

20-M.A. Mahmoud and Yosr E.E-D Gamal (1995): " Modeling of collisional

ionization in laser excited sodium atoms " Journal of the Physical Society of

Japan Val. 64, no 12 ,December P.4 653-4659.

21-Yosr E.E- D Gamal and I.M. Azzouz (1995): “Investigation of breakdown of

argon with a wide range of laser frequencies", Proceeding of ICPIG XXII, 31st

July – 4th

, August, Volume 4,Page 205, Hopken, Newjeresy, USA.

22-Waleed Tawfik, M.M. Omara, Yosr E.E - D Gamal and L. El - Nadi (1995)

: " Bulk and surface effects in liquids due to interaction of high power pulsed

laser beams ", Proceeding of Femtochemistry: The Lausanne Conference, Sept.

4th

–8th

, Lausanne Switzerland, Abstract PageG5.page 483-490. (World science:

Singapore, New Jersey, London-Hang Kong).

23-Walied Tawfik, M. M. Omar Yosr E.E-D Gamal and EL-Nadi (1997),"

Photo dissociation of H2O molecule in intense Laser field “Proceeding of solar

energy storage conference, “Solar 97Cairo, Egypt 1st –6

th Jan.,1997.

24- Jamal M. Daoud , Abdel Naser Abou El - Fotouh and Yosr E.E-D Gamal

(1997): " Numerical study of the Wavelength dependence on the

threshold intensity in Laser induced breakdown of N2 " proceeding of IC PIG

XXIII July 17-22 Toulouse - France . Volume V page -88.

25-MA Khedr, A. A. Hefny, H.Hamdy and Yosr E.E.D Gamal (1998): :"

Characteristics of Dc and pulsed hollow cathode glow discharge " Abstract

book IEEE ICOPS1-4,June North Raleigh, Raleigh North Carolina, U.S.A.

26-Yosr E.E- D Gamal, M. S-D Shafik and Jamal M. Daoud (1999) :"

Numerical investigation of the dependence of the threshold Intensity

irradiance on the Wavelength in Laser induced breakdown in N2 "J. Phys. D:

Appl. Phys. 32, 4,423-429.

27-Yosr E.E-D Gamal, L- EL Nady, M.O. Omar, Bassam. Ghazoulin and Khalid

Abd El Sabour (1999): "On the study of the electron Kinetic processes in the

breakdown of argon by 0.53 m and 0.248 m Laser Radiation ", J. Phys. D:

Appl. Phys, 32, 1633-1639.

28-Yosr E.E-D Gamal, A. Abou Elfotouh, and Jamal M. Daoud (1999)." Study

of breakdown of molecular Oxygen by 1064, 532,355 and 266 nm Laser

radiation" Proceeding of ICPIG XXIV July 11-16 Warsaw -Poland .Volume II

Page 115.

29-M.Hanafy, M. M.Omar and Yosr E.E-D Gamal (2000) :"study of laser

induced breakdown Spectroscopy of gases ", Radiation Physics and chemistry,

57,11-20.

30-Yosr E.E-D Gamal, F. Abdellatif and G. Abdellatif (2000): "Influence of

Secondary ionization Processes on the breakdown of Nitrogen by a Wide range

of Laser Wavelengths.” J. Phys. D: Appl. Phys, 33, 9, 1126-1133.

31-Yosr E.E-D Gamal and M. O. Omara (2001): “Study of the electron kinetic

processes in laser induced breakdown of electronegative gases over an extended

wavelength range" Radiation Physics and chemistry, 62,361-370.

32-Yosr E.E-D Gamal, I.M. Azzouz and Jamal M. Daoud (2000): “Study of the

effect of loss processes in Laser-Induced breakdown in nitrogen by a wide range

of Laser wavelengths". LIBS2000 ,8-12 October, Book of Abstract, Page 44,

Pisa, Italy.

33-M.A Khedr, M.A.Hafez, F.F. Elaksher and Yosr E.E-D Gamal, (2000): “Life

time measurement of Plasma associated with laser ablation ". Proceeding of the

second international conference on basic sciences and advanced technology 5th

–8th

November, Assuit, Egypt.

34- Walid T. Mohamed, Yosr E.E D. Gamal and E.W.Schlag (2001): "Lifetime

enhancement of Rydberg ZEKE states of Benzene" Book of abs. of PPPS

(2001) Las- Vegas 17th

-22nd

June Nivada, USA.

35- Yosr E.E D. Gamal and I. M. Azzouz (2001): "Theoretical analysis of the

breakdown of neon induced by 248mm laser radiation” J. Phys. D: Appl. Phys,

34, 1-7.

36- Afaf M. Abdel Hameed, G.H.Abou-Koura, I.M. Azzouz and Yosr E.E-D

Gamal (2001) “Investigation of the expansion dynamic in laser produced

aluminum plasma “Proceeding of XXV ICPIG 17th

-22nd

July Nagoya –

Japan,2,p243.

38-Yosr EE-D Gamal and M. O. Omara (2001): “Study of the electron kinetic

processes in laser induced breakdown of electronegative gases over an extended

wavelength range" Radiation Physics and chemistry, 62,361-370.

39- Yosr EE-D Gamal and I. M. Azzouz (2001): "Theoretical analysis of the

breakdown of neon induced by 248mm laser radiation " J. Phys. D: Appl. Phys

,34,1-7.

40-Lotfia El Nadi, Latifa Alhouty, and Yosr EE-D Gamal (2002). ”Ultra fast

lasers to determine molecular biological structures” Orally presented at the V-

International Femtochemistry conference 2nd

-6th

September 2001, Toledo,

Spain, published World Science,755.

41-Hafez M A, M. A. Khedr, F. F. Elaksher and Y E Gamal

(2003):”Characteristics of Cu plasma produced by a laser interaction with a

solid target”. Plasma sources Sci. Technel. 12, 185-198.

42-Afaf M. Abdel Hameed, G.H.Abou-Koura, I.M. Azzouz and Yosr EE-D

Gamal (2003):” Study of recombination processes during the expansion phase

of Ti-plasma produced by picoseconds of an Nd: YAG laser radiation”. Journal

of Nuclear Instruments and Methods in Physics Research B 205,271-275.

43-J.Ben-Ahmed, N.Terzi, Z.Ben-Lakhdar, Yosr Gamal and G. Taieb (2003):

"Spectroscopic studies and plasma analysis of laser induced breakdown in

water‟. Abstract book of the First Cairo Conference on :Plasma Physics&

Applications 11th

-15th

. October, 2003.

44-Lotfia El-Nadi, Ahmed M.Farag, Ashraf El Sherbiny,Yosr E.

Gamal(2004)"Two photon absorption cross-section of new fluoro-phore

compounds".AIP Conference Proceedings MTPR-04, 4-9 April ,Cairo

University,Cairo,Egypt,p249.

45-Walid Tawfik, Magdy M. Omar, Yosr E Gamal and Lotfia El-Nadi

(2004),"Ultrafast Moving Bubbles Initiated During The Propagation Of Focused

Laser Pulses in Water" AIP Conference Proceedings MTPR-04,4-9 April C

airoUniv,Cairo,Egypt,p280.

46-Y.E.E. Gamal, M.A. Mahmoud, and H.A. Abdel-Rahnam (2005),

"Modeling of laser induced excitation and ionization in cesium atoms", Journal

of quantitative spectroscopy & radiative transfer 90, 29-41.

47- M.A. Mahmoud, Y.E.E. Gamal, H.A. Abd El-Rahnam (2006),"Ion

formation in laser irradiated cesium vapor", Journal of quantitative spectroscopy

& radiative transfer 102,241-250.

48-H. Imam, G. Abdellatif, V. Palleschi, M.A Harith and Yosr E E-D Gamal

(2007) ''Dynamics of Spatially and Temporally Resolved Laser Induced

Plasma''. AIP Proceeding of the Second International Conference on “Modern

Trends in Physics Research”, MTPR -06, April 6-11, (2006), V 888, Page 421.

49-Khaled Elsayed, Hisham Imam, Fatma Madkour,Galila Meheina, Yosr E.

Gamal, (2009) “Laser-induced breakdown Spectroscopy technique in

identification of ancient ceramics bodies and glazes” Proceeding of the Third

International Conference on “Modern Trends in Physics Research”, MTPR -08

April 2008,Cairo University,Egypt.

50- H. Imam, G. Abdellatif, and Yosr E E-D Gamal (2010). Studying the role

of Ambient Conditions of laser induced Al-plasma“. Journal of the Korean

physical society,Vol 56,NO 1,1-8.

51- M.A.Mahmoud and Y.E.E.Gamal (2010 ). “Effect of energy

pooling collisions in formation of a Cesium Plasma by Continuous-

wave Resonance Excitation”. Accepted for publication in Journal

Of Applied Optics (Poland),Vol,40.

VISITING PROFESSOR:

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ooff SSwwaannsseeaa SSoouutthh WWaalleess,, UU KK..,, PPrrooff.. DDrr.. CC.. GGrreeyy MMoorrggaann aanndd DDrr.. CCoolliinn EEvvaannss,, UUKK

AAuugg.. -- NNoovv.. 11998800..

*Computations on laser induced breakdown of gases, ICTP, under the Federation

agreement scheme, Trieste, Italy, Aug. 1982.

*Research work on laser interaction with gases, Department of Physics University

College of Swansea, South Wales, U K., Prof. Dr. C. Grey Morgan and Dr. Colin

Evans, UK Aug. - Oct. 1983.

* Research work on the calculation of multiphoton ionization probability, Aime Cotton

Laboratories Orsay, Prof. M. Crance and Dr. Merille, France, Sep. - Dec. 1985.

*Research work on numerical modeling of laser induced ionization based on

resonance saturation of Alkali vapor atoms, Swansea, UK Jul. - Oct. 1987.

*Training on Laser system operation at Laser Ionic Company Orlando Florida USA

12-22 August 1995.

*Research work on numerical modeling and experimental study of propagation of

ultra fast Laser pulses in atmospheric air – Center of Optics, Photonic and Laser

(COPL) Prof. S.L. Chin Laval University Quebec, Canada 7-22 June 1998.

*Research work on numerical modeling and experimental study of laser induced

breakdown spectroscopy in distilled water. Cooperation project, between NILES,

Cairo University and University of Tunis II, Laboratory of atomic, molecular physics

and spectroscopy, Faculty of science. The project supported by the office of the

external activities ICTP Trieste, Italy (NET- 45, 2000-2003) 27th

July-5th

August 2003.

*Research work on numerical modeling and experimental study of laser induced

breakdown spectroscopy in distilled water. Cooperation project, between NILES,

Cairo University and University of Tunis II, Laboratory of atomic, molecular physics

and spectroscopy, Faculty of science. The project supported by the office of the

external activities ICTP Trieste, Italy (NET- 45, 2000-2005) 22ed

July-31st July 2005.

*Computations on the phenomenon on laser induced breakdown different medii,

ICTP, under the Associate scheme, Trieste, Italy, Aug. 2008.

: : النشــاط العلمى النشــاط العلمى

::حضور المؤحمراث العلميت حضور المؤحمراث العلميت ( ( أأ

PARTICIPATION IN SCIENTIFIC MEETINGS

(a) Conferences: *XVI ICPIG Düsseldorf, West Germany, Aug. 29, 1983.

Submitted work:-Secondary ionization processes in laser– induced cascade

ionization.

Yosr E.E-D Gamal ,and M. Abdel Harith.

*International laser Science Conference ILS - 1, Dallas, U.S.A., Nov. 19, 1985.

Submitted work: - Ruby laser induced breakdown of Argon.

Yosr E.E-D Gamal, I. M Azzouz and M. El - Nady.

* XVIII ICPIG, Swansea, UK Jul. - Oct. 1987.

Submitted work: - Breakdown of molecular oxygen by brief pulses of laser

radiation.

Yosr E.E-D Gamal. *Third Tropical College on Applied Physics, Laser and Plasma Technology, Kuala

Lumpur Malaysia Jun. 1988.

Submitted work: - Investigation of electrical breakdown of electronegative gases

by laser radiation.

Yosr E.E -D Gamal and H. M. Abdel - Moneim.

*International Conference on Multiphoton processes ICOMP - V. Sep. 24 -28, 1990.

Submitted work:-Investigation of breakdown of rare gases by short pulses of 1.06

mm laser radiation.

Yosr E.E- D Gamal and M.S. Shafik.

*XX ICPIG, PISA, Italy, July 12 - 16 , 1991.

Submitted work: - Modeling of resonance ionization in laser excited metallic

vapor.

Yosr EE- D Gamal, S.S. Montasser and M.A. Mahmoud.

*The sixth international conference on resonance ionization spectroscopy and its

applications. RIS - 92 May, 24 - 29, 1992, Santa Fe, New Mexico, USA.

Submitted work: - Kinetics of ionization of Sodium Vapor with laser radiation.

Yosr E.E - D Gamal and M.A. Mahmoud.

*Conference on gas discharges and their application (GD -92) 13 -18 Sep. 1992,

Swansea, UK.

Submitted work:-On the effect of laser pulse length on the threshold of breakdown

of Argon.

Yosr E.E - D Gamal and I.M. Azzouz.

*3rd. international conference 8-14 January 1995, Ain Shams University, Cairo, Egypt,

On Solar Energy Storage and Applied Photochemistry.

*XXII ICPIG New Jersey USA.31 July -4 August 1995. Hopken, N.J.USA.

Submitted work:-Investigation of Breakdown of Argon with a wide range of Laser

Frequencies.

Yosr E.E.-D Gamal and I.M.Azzouz.

*2nd

International Conference on Laser and applications, Advances in Science,

Medicine and Technology, 16-19 September 1996,NILES, Cairo University.Egypt.

Submitted work:-“ Study of Laser induced breakdown spectroscopy of Gases “

M.H. Mohmoud, M.O.Omara . Yosr E.E.- D Gamal.

*4 Th

workshop on Plasma and Laser Physics, Sonesta Hotel, Naser City, Cairo

Egypt.26-29 Feb.1997.

Submitted work:-“ Self Focusing and associated Phenomenon induced by high

intensity Q-Switched Nd: YAG Laser Beam in Water.

W.Tawfik, A. Abd El-Fattah. Yosr E.E -D Gamal and L-El.Nadi.

*XXIII ICPIG Toulouse-France July 17-22 1997.

Submitted work:-“Computational study of the effect of wavelength dependence on

the threshold intensity in Laser induced breakdown of N2 “ .

J. Daoud , A. Abd El-Fattah and Yosr E.E-D. Gamal .

*ICOPS 98, North Carolina USA. 1st

- 4 th

June 1998.

Submitted work:-Studies of Ionization Cesuim Atoms by Laser Induced Resonance

Excitation

Yosr E.E -D. Gamal, M.A. Mahamoud and H. Abd.El Hafez .

*International Workshop on ultrafast intense pulse propagation and its applications

Quebec, Canada, Laval University 19 th

-20 th

June 1998 . Submitted work:-Theoretical modeling of Laser induced breakdown in Gases and

comparison with most recent experiments .

Yosr E.E- D. Gamal.

*3rd

International Conference on Laser and applications, Advances in Science,

Medicine and Technology, 15-17 November 1998, NILES, Cairo University, Egypt.

Submitted work:-"On the study of the electron Kinetic processes in the breakdown

of argon by Laser Radiation ".

Yosr E.E-D Gamal, L- EL Nady, M.O. Omara and Bassam Ghazoulin.

* XXIV ICPIG Worsaw - Poland July 11-16 1999

Submitted work:-"study of breakdown of Molecular oxygen by 1064 ,532 ,355 and

266 nm Laser Radiation ".

Yosr E.E-D Gamal,Abd El-Naser Abou El-Fotouh and Jamal M. Daoud.

* LIBS 2000 , Tirrenia,8-12 October 2000

Submitted work:-"study of the Effect of loss processes in laser –induced

breakdown in Nitrogen by a wide range of laser wavelenghts".

Yosr E.E-D Gamal, I.M. Azzouz and Jamal M.Daoud.

* XXV ICPIG Nagoya - Japan July 17-22 2001

Submitted work "Investigation of the expansion dynamic in laser produced

aluminum plasma "

Yosr E.E-D Gamal, Afaf M. Abdel Hameed, G.H.Abou-Koura, I.M. Azzouz.

(b) Schools , Colleges & Workshops:

* Third tropical college on applied physics, laser and plasma technology, Kuala

Lumpur, Malaysia Jun. 1988. * Winter school on physical chemistry, UNARC,

Alexandria, Egypt, Jan. 9 - 15, 1981.

** Symposium on laser and its applications, Cairo University, Giza, Egypt, Dec. 1982.

* Winter school on laser, atomic and molecular physics, ICTP, Trieste, Italy, Jan. -

March, 1983.

** Winter school on laser and its application, Faculty of Science, Assiut University and

Cairo University, Assuan, Egypt. Jan. 1984.

* Winter school on laser, atomic and molecular physics, ICTP, Trieste, Italy, Jan. -

March, 1985.

* Spring college on plasma physics, ICTP, Trieste, Italy, May - June, 1985.

* Patra school on: laser and its applications, Amman Jordan. Sept. 1985.

**Winter school on laser and its application, Faculty of Science, Cairo University, and

Assuan, Egypt. Jan.,1986.

* Workshop on fiber optics communications, ICTP, Trieste, Italy, Feb. - March, 1986.

* Summer workshop in condensed matter, atomic and molecular physics, ICTP, Trieste,

Italy (visit as associated member). July- Sep.1986.

**Workshop on plasma physics and laser technology, Cairo University, Cairo, Egypt,

Feb. 1987.

*Summer workshop in condensed matter, atomic and molecular physics, ICTP, Trieste,

Italy (visit as associated member). August- Sep.1987.

* Summer workshop in condensed matter, atomic and molecular physics, ICTP,

Trieste, Italy (visit as associated member). July- August1990.

* Summer workshop in condensed matter, atomic and molecular physics, ICTP,

Trieste, Italy (visit as associated member). July-August1991.

* Winter College on New Laser sources -Trieste -Italy

(Participant) 12 Feb.-1st March 1996.

* 2nd

International conference on laser and its application NILES, Cairo University

13th

–17th

September 1996 Cairo, Egypt.

* Winter college on Quantum optics: novel Radiation Sources - Trieste -Italy - 3rd

-21

march 1997.

* Autumn College on Plasma Physics Trieste -Italy 13 October-7 November, 1997.

* Winter college on optics - Trieste Italy 9-27 Feb.1998.

***Training Course on Laser Science and its applied Technologies organized by

NILES, Cairo University in cooperation with ICS–UNIDO, Trieste -Italy, Cairo 9-

21 November 1998.

***The 3rd

international conference on laser and its application in medicine, science

and technology 14th

–16th

November 1998.

*Winter college on spectroscopy and its application Trieste -Italy 8-26 Feb.1999.

*ICS Training course on Laser diagnostics in Combustion processes Trieste -ICS 1-5

March 1999.

**Workshop on laser applications organized by NILES, Cairo University, Egypt, and

4th –8th

Feb.2000.

***Training course on industrial laser application organized by NILES, Cairo

University in cooperation with ICS- UNIDO, Trieste, Italy, Cairo, Egypt, 27th

May- 8th

June 2000.

***Training course on laser diagnostics of combustion processes organized by

NILES, Cairo University in cooperation with ICS- UNIDO, Trieste , Italy, Cairo,

Egypt, 18th

Nov.- 22nd

Nov. 2000.

***4th

Euro-Mediterranean conference on laser a photobiology application NILES,

Cairo University 13th

-16th

Feb. 2001-Cairo Egypt.

***The 4th

international conference on laser and its application NILES, Cairo

University 31st March-5

th April 2001.

*Winter College on spectroscopy and its application Trieste -Italy 7-22 Feb.2003.

*Winter college on Physics of Nano-Devices Trieste-Italy 10th

-21st July,2006.

*Summer college on Plasma Physics, Trieste-Italy 30th

July -21st, August,2007.

*Summer college on Plasma Physics, Trieste-Italy 10th

August -28th

, August,2009.

* Participant

** Member of the organizing Committee.

*** Local Organizer.

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ا جامعت القاهرة اعتبار–لطالب مرحلت البكالوريوس بكليت العلوم . 1978من

اعخبارا–جدة -لطالب مرحلت البكالوريوس بكليت الخربيت للبناث

2001من

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بصريات كمية وليزر بصريات كمية وليزر

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