Spotlight
About Us
Facilities
M.Tech (SSEM)
M.Tech (Photonics)
Physics Association
TPSC
Departmental Faculty Search Committee
List of students doing Project outside IIT-R
Indo-Belgium Workshop
B Tech Engg Physics students IIT Roorkee exhibiting their activities in the Lab
Rastogi Vipul
Vipul Rastogi Professor vipulfph[at]iitr.ac.in 91-01332-285333
Areas of Interest
  • Fiber Optics, Specialty Optical Fibers, Fiber Amplifiers, EDFA, LMA Fibers, DCF, Fiber Sensors
  • Integrated Optics, Design of optical waveguides for high power amplifiers and lasers, dispersion management
  • Optoelectronics, Light extraction in LED and OLED, Thin film solar cells
Professional Background
FromToDesignationOrganisation
2018OngoingProfessorIndian Institute of Technology Roorkee
20122018Associate ProfessorPhysics Department, IIT Roorkee
20032012Assistant ProfessorPhysics Department, IIT Roorkee
MAY 2013JULY 2013Invited ProfessorLPMC Université de Nice, France
JUN 2008JUL 2008Invited ProfessorLPMC Université de Nice, France
JUN 2005JUL 2005Visiting FellowCity University Hong Kong
20002003Research FellowCity University of Hong Kong
19981999Postdoctoral FellowUniversity of Nice, France
Honors and Awards
AwardInstituteYear
Ramkumar Prize for Outstanding Teaching and ResearchIIT Roorkee2019
IAPT-DSM Award for UG Physics Teaching Indian Association of Physics Teachers2016
Outstanding Teacher AwardIIT Roorkee2011
Senior Member Designation Optical Society of America2011
Best Paper Award (Scientist Category)Conference ICOP-2009, CSIO Chandigarh2009
French Government Post-doctoral FellowshipUniversite de Nice-Sophia Antipolis France1998
Educational Details
DegreeSubjectUniversityYear
Ph. D.PhysicsIIT Delhi1998
M. Sc.PhysicsIIT Roorkee (formerly Universty of Roorkee)1993
B. Sc.Physics, MathematicsRohilkhand University Bareilly1991
Administrative Background
FromToDesignationOrganisationLevel
2017ongoingAssociate Dean Academic Affairs - CurriculumIIT Roorkee
20162017Chief AdvisorStudents' Club
20132015TreasurerAdarsh Bal Niketan
20122012Co-cordinatorCognizance 2012
20092010WardenGovind Bhawan
2015ongoingDy OC High Power Laser Lab
20162017Staff Adviser Training and PlacementPhysics Department
20042017OC Laser Physics LaboratoryPhysics Department
20082010OC Administration and MaintenancePhysics Department
Participation in seminars
NamePlaceSponsored ByDate
XXIII International Workshop on Optical Wave & Waveguide Theory and Numerical Modelling – OWTNM 2015LondonPDAApril 2015
International Conference on Optics and Optielectronics - ICOL 2005IRDE DehradunDRDODecember 1
XXI International Workshop on Optical Wave & Waveguide Theory and Numerical Modelling – OWTNM 2013Enschede, The NetherlandsPDAApril 2013
International Winter School on Organic Electronic Materials & Devices – OEMD 2013NITK Surathkalorganizers19-12-2013
Indo-UK Seminar on Computational PhotonicsIIT DelhiDST-Royal Soc.01-03-2014
XXXVIII Symposium of Optical Society of India and International Conference on Optics & OptoelectroniIRDE DehradunProject05-03-2014
XXII International Workshop on Optical Wave & Waveguide Theory and Numerical Modelling – OWTNM 2014Nice, FrancePDA/PDF27-06-2014
XXI International Workshop on Optical Wave & Waveguide Theory and Numerical Modelling – OWTNM 2013Enschede, The NetherlandsPDA18-04-2013
XXXVI OSI SYMPOSIUM on Frontiers in Optics and Photonics - FOP 11IIT DelhiProject Grant03-12-2011
International Conference on Specialty Glass and Optical Fiber: Materials, Technology and Devices - ICGCRI KolkataProject Grant2011-08-04
XXXV OSI Symposium on Contemporary Trends in Optics and OptoelectronicsThiruvanantpuramPDF17-01-2011
International Conference on Fiber Optics and Photonics - Photonics 2010IIT GuwahatiProject Grant13-12-2010
15th OptoElectronics and Optical Communication Conference - OECC2010Sapporo, JapanPDF05-07-2010
Indo-Australia Solar Energy WorkshopAmity Univ. NoidaFeb. 9-10,
International Symposium on Microwave and Optical Technology - ISMOT 2009Hotel Ashok New DelhiDec. 16-19
International Conference on Optics and Photonics - ICOP 2009CSIO ChandigarhOct. 30 -
Optical Fiber SensorsEdinburghUKIERI Project GrantOct. 5-7 2
International Conference on Fiber Optics and Photonics - Photonics 2008New DelhiDec. 13-17
Indo-UK Workshop on Microstructured Optical FibersCGCRI KolkataJan. 5-7,
Workshop on Optical Fiber Sensors and ComponentsBritish Council New DelhiDec. 7 - 9
Memberships
  • Optical Society of America, Senior Member
  • Optical Society of India, Life Fellow
  • Indian Laser Association, Life Member
  • IEEE Photonics Society, Member
  • Indian Association of Physics Teachers, Life Member
  • Indian Physics Association, Life Member
Research Scholar Groups
Scholar NameInterest
Gyanendra Kumar (Post-doctorate)Nonlinear Fiber Optics
Bipin Kumar Singh (Post-doctorate)Photonics Crystals
Vidhi MannOptoelectronics
Uma Shankar TripathiLiquid Crystal Photonics
Ashish BijalwanPlasmonics
Md. RehanFiber Amplifiers and Lasers
Savita ChoudhauriPlasmonic solar cells
Aashish KumarOptical fiber amplifiers
Mohd. UwaisPlasmonic sensors
Rajat Chauhan.
PHDs Supervised
TopicScholar NameStatus of PHDRegistration Year
Large modearea rectangular optical waveguides and fibersAjeet KumarA2004
Optical fiber designs for amplifiers and sensorsK. KamakshiA2008
Design and study of planar optical waveguide components and devicesAshok NandamA2008
Application specific multilayer optical structuresBabitaA2009
Design and study of long period waveguide grating devices using natural optimization algorithmsGirish SemwalA2009
Multiband photonic integrated circuits using plasmonic MIM waveguideK. ThirupathaiahA2010
Studies on multi-mode erbium doped fiber amplifierAnkita GaurA2013
Multilayer structures for optoelectronics applicationsVidhi MannO2013
Liquid crystal based integrated optic components and devicesUma Shankar TripathiO2014
Metallic grating assisted surface plasmon resonance based devicesAshish BijalwanO2014
Optical fiber designs for high power laser systemsMd. RehanO2015
Study of hot carrier generation in plasmonic nanostructure for the photovoltaic and sensing applicatSavita ChoudhauriO2017
To be decidedAashish KumarO2018
To be decidedMohd. UwaisO2018
To be decidedRajat ChauhanO2019
Visits to outside institutions
Institute VisitedPurpose of VisitDate
LPMC, Université Nice Sophia Antipolis, Nice, FranceResearch CollaborationApril 2015
LPMC, Université Nice Sophia Antipolis, Nice, FranceVisiting ResearcherJune 2014
LPMC, Université Nice Sophia Antipolis, Nice, FranceVisiting ProfessorMay 2013
City Univ. LondonUKIERI Project meeting14-07-2012
City Univ. LondonUKIERI Project meeting and research collaboration10-07-2010
Univ. of Southampton, Heriot Watt Univ. Edinburgh, and City Univ. LondonUKIERI project meeting and research collaboration01-10-2009
University of Nice, FranceResearch Collaboration03-06-2009
City University London, Univ. of NottinghamResearch Collaboration under UKIERI project11-07-2008
University of Nice FranceVisiting Scientist02-06-2008
University of Nice FranceResearch CollaborationDecember 2
University of Limoges FranceResearch CollaborationDecember 2
City University LondonResearch CollaborationAugust 200
University of Southampton UKResearch CollaborationAugust 200
Heriot Watt University EdinburghResearch CollaborationAugust 200
University of Nice FranceResearch CollaborationDecember 2
University of Limoges FranceResearch CollaborationDecember 2
City University of Hong KongResearchJune-July
Courses or Conferences Organised
Conference NameSponsored ByDate
Seminar Series on Fiber Optics Photonics and ApplicationsQIP20-22 Janu
Indo-UK workshop on "Recent Advances in Fiber Optics and Photonics - RAFOP 2006"DRDO, CSIR, EPSRCAugust 25
National International Collaboration
TopicOrganisationLevel
Indo-French Networking Project on Specialty Optical Fibers and Fiber based Components for Optical CommunicationLPMC Nice, XLIM Limoges, IIT Delhi, CGCRI Kolkata RP
UKIERI major award on "Research on application specific microstructured optical fiber."City Univ. London, Univ. of Southampton, Heriot Watt Univ. Edinburgh, Univ. of Nottingham, IIT DelhiRP
Development of silica based segmented cladding fiber CGCRI, KolkataRP
Innovative light extraction technology for white OLEDIIT Delhi, Moser Baer India Ltd. Greater NoidaRP
Indo-Russian project on "R & D on new optical fibers for applications in modern laser systems"University of Ulyanovsk RussiaRP
Refereed Journal Papers

75.

B. K. Singh, A. Bijalwan and V. Rastogi, “Enhancement of light harvesting efficiency of perovskite solar cells by using one-dimensional photonic crystals,” Applied Optics, vol. 58, pp. 8046 – 8054, 2019.

SCImago Journal & Country Rank

74.

U. S. Tripathi and V. Rastogi, “Liquid crystal-based widely tunable integrated optic wavelength filters,” Journal of Optical Society of America B, vol. 36, pp. 1883 – 1889, 2019.

SCImago Journal & Country Rank

73.

A. Bijalwan and V. Rastogi, “Design and simulation of a palladium-aluminum nanostructure based hydrogen sensor with improved figure of merit,” IEEE Sensors Journal, vol. 19, pp. 6112 – 6118, 2019.

SCImago Journal & Country Rank

72.

U. S. Tripathi and V. Rastogi, “Temperature insensitive long period waveguide gratings in rib waveguide,” Optik, vol. 186, pp. 15 – 21, 2019.

SCImago Journal & Country Rank

71.

M. Rehan, G. Kumar, V. Rastogi, D. A. Korobko, and A. A. Sysolytian, “Compression of femtosecond pulses in a wide wavelength range using a large-mode-area tapered fiber,” Laser Physics, vol. 29, pp. 025104 (1-9), 2019.

SCImago Journal & Country Rank

70.

D. A. Korobko, V. Rastogi, A Sysoliatin, and I. O. Zolotovskii, “Generation of 2 um radiation due to single-mode fibers with longitudinally varying diameter,” Optical Fiber Technology, vol. 47, pp. 38 – 42, 2019.

SCImago Journal & Country Rank

69.

A. Bijalwan and V. Rastogi, “Gold–aluminum-based surface plasmon resonance sensor with a high quality factor and figure of merit for the detection of hemoglobin,” Applied Optics, vol. 57, pp. 9230 – 9237, 2018.

SCImago Journal & Country Rank.

68.

I. O. Zolotovskii, D. A. Korobko, V. Rastogi, D. A. Stoliarov and A. A. Sysolyatin, “Generation of subpicosecond pulses at wavelengths greater than 2 um by means of length-nonuniform single-mode optical fibres,” Quantum Electronics, vol. 48, pp. 813 – 817, 2018.

SCImago Journal & Country Rank

67.

A. Gaur and V. Rastogi, “Modal gain equalization of 18 modes using a single-trench ring-core EDFA,” Journal of Optical Society of America B, vol. 35, pp. 2211 – 2216, 2018.

SCImago Journal & Country Rank

66.

G. Kumar, M. Rehan, V. Rastogi, D. A. Korobko and A. A. Sysolyatin, “Direction- dependent propagation of high-power femtosecond pulses through a large-mode-area tapered fiber,” Journal of Optical Society of America B, vol. 35, pp. 1681 – 1686, 2018.

SCImago Journal & Country Rank

65.

Babita Hooda and V. Rastogi, “Depressed index clad fiber as a highly sensitive low-cost refractive index sensor,” Optik, vol. 170, pp. 237-241, 2018.

SCImago Journal & Country Rank

64.

A. Bijalwan and V. Rastogi, “Design and analysis of refractive sensor with high quality factor using Au-Al2O3 grating on Aluminum,” Plasmonics, vol. 13, pp. 1995 - 2000, 2018.

SCImago Journal & Country Rank

63.

A. Gaur, G. Kumar and V. Rastogi, “Dual-core few-mode EDFA for amplification of 20 modes,” Optical and Quantum Electronics, DOI: https://doi.org/10.1007/s11082-018-1322-6, 2018.

SCImago Journal & Country Rank

62.

A. Bijalwan and V. Rastogi, “Sensitivity enhancement of a conventional gold grating assisted surface plasmon resonance sensor by using a bimetallic configuration,” Applied Optics, vol. 56, pp. 9606-9612, 2017.

SCImago Journal & Country Rank.

61.

V. Mann, B. Hooda and V. Rastogi, “Improvement of light extraction efficiency of organic light-emitting diodes using dielectric nanoparticles,” Journal of Nanophotonics, vol. 11, pp. 36010, 2017.

SCImago Journal & Country Rank

60.

B. Hooda and V. Rastogi, “Low cost highly sensitive miniaturized refractive index sensor based on planar waveguide,” Optik, vol. 143, pp. 158-166, 2017.

SCImago Journal & Country Rank

59.

V. M. Zhuravlev, I. O. Zolotovskii, P. P. Mironov, M. S. Yavtushenko, and V. Rastogi, “Generation of giant spatially localized Gaussian wave packets in active fibers with saturable nonlinearity,” Quantum Electronics, vol. 47, pp. 539- 546, 2017.

SCImago Journal & Country Rank

58.

A. Gaur and V. Rastogi, “Design and analysis of high-power segmented-core trench-assisted Yb-free erbium doped fiber amplifier,” Optics and Laser Technology, vol. 95, pp. 46-50, 2017.

SCImago Journal & Country Rank

57.

V. Mann and V. Rastogi, “Dielectric nanoparticles for the enhancement of OLED light extraction efficiency,” Optics Communications, vol. 387, pp. 202-207, 2017.

SCImago Journal & Country Rank

56.

A. Pal, A. Dhar, A. Ghosh, R. Sen, B. Hooda, V. Rastogi, M. Ams, F. Mathias, T. Sun, and K. T. V. Grattan, “Sensors for harsh environment : radiation resistant FBG sensor system,” J. Lightwave Technology, 2016, DOI 10.1109/JLT.2016.2598666.

SCImago Journal & Country Rank

55.

V. Rastogi, A. Gaur, P. Aschieri, and B. Dussardier, “Mode group specific amplification length in an asymmetric LPG assisted few-mode EDFA,” Optics Communications, vol. 382, pp. 13-17, 2017.

SCImago Journal & Country Rank

54.

A. Gaur and V. Rastogi, “Design and analysis of annulus core few-mode EDFA for modal gain equalization,” IEEE Photonics Technology Letters, vol. 28, pp. 1057-1060, 2016.

SCImago Journal & Country Rank

53.

G. Semwal and V. Rastogi,” Design optimization of long period waveguide grating devices for refractive index sensing using adaptive particle swarm optimization,” Optics Communications, vol. 359, pp. 336-343, 2016.

SCImago Journal & Country Rank

52.

N. Ashok and V. Rastogi, “Design and study of trench-assisted long-period-waveguide-grating based gain flattening filter for erbium-doped waveguide amplifier,” J. Optics (OSI), vol. 45, pp. 285 - 291, 2015.

SCImago Journal & Country Rank

51.

B. Hooda, A. Pal, V. Rastogi, R. Sen, and J. Kobelke, “Segmented cladding fiber fabricated in silica-based glass,” Optical Engineering, vol. 54, pp. 075103, 2015.

SCImago Journal & Country Rank

50.

V. Mann, N. Ashok, and V. Rastogi, “Coupled strip-slot waveguide design for dispersion compensation,” Optical and Quantum Electronics, vol. 47, pp. 3161-3169, 2015.

SCImago Journal & Country Rank

49.

G. Semwal and V. Rastogi, “Design optimization of two concatenated lon period waveguide grating devices for an application specific target spectrum,” Applied Optics, vol. 54, pp. 3141 – 3149, 2015.

SCImago Journal & Country Rank.

48.

G. Semwal and V. Rastogi, “Design of LPWG broad band filters with genetic algorithm optimization,” J. Optics (OSI), vol. 43, pp. 165-168, 2014.

SCImago Journal & Country Rank

47.

K. Thirupataiah, B. Iyer, N. P. Pathak, and V. Rastogi, “Concurrent dual-band diplexer for nanoscale wireless links,” IEEE Photonics Technology Letters, vol. 26, pp. 1832 - 1835, 2014.

SCImago Journal & Country Rank

46.

G. Semwal and V. Rastogi, “Design of application specific long period waveguide grating filters using adaptive particle swarm optimization algorithms,” J. Optics (IOP), vol. 16, pp. 15504(1-8), 2014.

SCImago Journal & Country Rank

45.

G. Semwal and V. Rastogi, “Derivative free method for computing modes of multilayer planar waveguide,” Optical and Quantum Electronics, vol. 46, pp. 423-438, 2014.

SCImago Journal & Country Rank

44.

B. Hooda and V. Rastogi, “Design of segmented cladding fiber for femtosecond laser pulse delivery at 1550 and 1064 nm wavelengths,” Optical and Quantum Electronics, vol. 46, pp. 397-408, 2014.

SCImago Journal & Country Rank

43.

K. Thirupataiah, N. P. Pathak, and V. Rastogi, “Concurrent dual-band filters using plasmonic slot waveguide,” IEEE Photonics Technology Letters, vol. 25, pp. 2217-2220, 2013.

SCImago Journal & Country Rank

42.

N. Ashok, and V. Rastogi, “Dual-core leaky waveguide-based filters for erbium doped waveguide amplifier,” Fiber and Integrated Optics, vol. 32, pp. 242-250, 2013.

SCImago Journal & Country Rank

41.

K. Kamakshi, V. Rastogi, and A. Kumar, “Design and analysis of a refractive index sensor based on dual-core large-mode-area fiber,” Optical Fiber Technology, vol. 19, pp. 325-329, 2013.

SCImago Journal & Country Rank

40.

G. Prabhakar, A. Peer, V. Rastogi, and A. Kumar, “Large-effective-area dispersion-compensating fiber design based on dual-core microstructure,” Applied Optics, vol. 52, pp. 4505-4509, 2013.

SCImago Journal & Country Rank

39.

B. Hooda, and V. Rastogi, “Segmented-core single mode optical fiber with ultra-large-effective-area, low dispersion slope and flattened dispersion for DWDM optical communication system,” Progress in Electromagnetic Research B, vol. 51, pp. 157-175, 2013.

SCImago Journal & Country Rank

38.

N. Ashok, V. Rastogi, and A. Kumar, “Long-period-grating in a trench assisted planar optical waveguide,” Applied Optics, vol. 52, pp. 1954-1962, 2013.

SCImago Journal & Country Rank

37.

Babita, V. Rastogi, and A. Kumar, “Design of large-mode-area three-layered fiber structure for femtosecond laser pulse delivery,”Optics Communications, vol. 293, pp. 108-112, 2013.

SCImago Journal & Country Rank

36.

V. Rastogi, “Application specific leaky optical fibers,” J. Optics (OSI), vol. 42, pp. 42-50, 2013.

SCImago Journal & Country Rank

35.

N. Ashok, V. Rastogi, and A. Kumar, “Dual-core leaky optical waveguide as an integrated-optic polarizer,” Optics Communications, vol. 285, pp. 5094-5099, 2012.

SCImago Journal & Country Rank

34.

A. Kumar, V. Rastogi, A. Agrawal, and B. M. A. Rahman, “Birefringence analysis of segmented cladding fibre,” Applied Optics, vol. 51, pp. 3104-3108, 2012.

SCImago Journal & Country Rank

33.

K. Kamakshi, and V. Rastogi, “Inherently gain flattened S-band erbium doped fiber amplifier based on dual core resonantly leaky fiber,” Optics Communications, vol. 285, pp. 2821-2825, 2012.

SCImago Journal & Country Rank

32.

V. Rastogi, R. Kumar, and A. Kumar, “Large-effective-area all-solid dispersion compensating fiber,” J. Optics (IOP), vol. 13, pp. 125707(1-6), 2011.

SCImago Journal & Country Rank

31.

A. Kumar and V. Rastogi, “Design and analysis of dual-shape-core large-mode-area optical fiber,” Applied Optics, vol. 50, pp. E119 - E124, 2011.

SCImago Journal & Country Rank

30.

V. Rastogi, N. Ashok, and A. Kumar, “Design and analysis of large-core high-GVD planar optical waveguide for dispersion compensation,” Applied Physics B, 2011, vol. 105, pp. 821-824, 2011.

SCImago Journal & Country Rank

29.

B. Dussardier, V. Rastogi, A. Kumar and G. Monnom, “Large mode area leaky optical fiber fabricated by MCVD.” Applied Optics, vol. 50, pp. 3118 - 3122, 2011.

SCImago Journal & Country Rank

28.

K. Kamakshi, V. Rastogi, P. Singh and A. Kumar, “Design of dual-core resonant leaky optical fibre based gain flattening filters for erbium doped fibre amplifiers,” Optics Communications, vol. 283, pp. 5025-5027, 2010.

SCImago Journal & Country Rank

27.

D. C. Srivastava, V. Rastogi and R. Ghosh, “A rapid Bezier curve method for shape analysis and point representation of asymmetric folds,” J. Structural Geology, vol. 32, pp. 685-692, 2010.

SCImago Journal & Country Rank

26.

L. Labonte, V. Rastogi, A. Kumar, B. Dussadier and G. Monnom, “Birefringence analysis of multilayer leaky cladding optical fiber,” J. Optics (IOP), vol. 12, pp. 065705 (1-4), 2010.

SCImago Journal & Country Rank

25.

K. Kamakshi, V. Rastogi, A. Kumar and J. Rai, “Design and fabrication of a single-mode optical fiber based refractive index sensor,” Microwave and Optical Technology Letters, vol. 52, pp. 1408-1411, 2010.

SCImago Journal & Country Rank

24.

D. C. Srivastava, and V. Rastogi, “HingeInflex – a MATLAB-based method for precise selection of the hinge and the inflection points in folds,” Geological Magazine, vol. 147, pp. 233-241, 2010.

SCImago Journal & Country Rank

23.

J. Shah, D. C. Srivastava, V. Rastogi, R. Ghosh, and A. Pal, “Strain estimation from single forms of distorted fossils – a computer graphics and MATLAB approach,” J. Geological Society of India, vol. 75, pp. 88-97, 2010.

SCImago Journal & Country Rank

22.

A. Kumar, V. Rastogi, C. Kakkar, and B. Dussardier, “Co-axial dual-core resonant leaky fibre for optical amplifiers,” J. Optics A: Pure and Applied Optics, vol. 10, pp. 115306 (1-6), 2008.

SCImago Journal & Country Rank

21.

A. Kumar, and V. Rastogi, “Multilayer cladding leaky planar waveguide for high-power applications,” Applied Physics B, vol. 92, pp. 577-583, 2008.

SCImago Journal & Country Rank

20.

A. Kumar, V. Rastogi, and K. S. Chiang, “Large-core single-mode channel waveguide based on geometrically shaped leaky cladding,” Applied Physics B, vol. 90, pp. 507-512, 2008.

SCImago Journal & Country Rank

19.

A. Kumar, and V. Rastogi, “Design and analysis of a multilayer cladding large-mode-area optical fibre,” J. Optics A : Pure and Applied Optics, vol. 10, pp. 015303 (1-6), 2008.

SCImago Journal & Country Rank

18.

A. Kumar, V. Rastogi, and K. S. Chiang, “Leaky optical waveguide for high power applications,” Applied Physics B, vol. 85, pp. 11-16, 2006.

SCImago Journal & Country Rank

17.

V. Rastogi, and K. S. Chiang, “Analysis of segmented cladding fiber by the radial effective-index method,” J. Optical Society of America B, vol. 21, pp. 258-265, 2004.

SCImago Journal & Country Rank

16.

Q. Liu, K. S. Chiang, and V. Rastogi, “Analysis of corrugated long-period gratings in slab waveguides and their polarization dependence,” J. Lightwave Technology, vol. 21, pp. 3399-3405, 2003.

SCImago Journal & Country Rank

15.

V. Rastogi, and K. S. Chiang, “Holey optical fiber with circularly distributed holes analyzed by radial effective-index method,” Optics Letters, vol. 28, pp. 2449-2451, 2003.

SCImago Journal & Country Rank

14.

V. Rastogi, and K. S. Chiang, “Leaky optical fibre for large mode area singlemode operation,” Electronics Letters, vol. 39, pp. 1110-1112, 2003.

SCImago Journal & Country Rank

13.

K. S. Chiang, R. Kancheti, and V. Rastogi, “Temperature-compensated fiber-Bragg-grating-based magnetostrictive sensor for DC and AC currents,” Optical Engineering, vol. 42, pp. 1906-1909, 2003.

SCImago Journal & Country Rank

12.

K. S. Chiang, K. P. Lor, C. K. Chow, H. P. Chan, V. Rastogi, and Y. M. Chu, “Widely tunable long-period gratings fabricated in polymer-clad ion-exchanged glass waveguides,” Photonics Technology Letters, vol. 15, pp. 1094-1096, 2003.

SCImago Journal & Country Rank

11.

V. Rastogi and K. S. Chiang, “Long period gratings in planar optical waveguides,” Applied Optics, vol. 41, pp. 6351-6355, 2002.

SCImago Journal & Country Rank

10.

V. Rastogi, K. S. Chiang, and N. N. Akhmediev, “Soliton states in a nonlinear directional coupler with intermodal dispersion,” Physics Letters A, vol. 301, pp. 27 – 34, 2002.

SCImago Journal & Country Rank

9.

V. Rastogi and K. S. Chiang, “Propagation characteristics of a segmented cladding fiber,” Optics Letters, vol. 26, pp. 491-493, 2001.

SCImago Journal & Country Rank

8.

V. Rastogi, P. Baldi, I. Aboud, P. Aschiéri, M.P. De Micheli, D.B. Ostrowsky, and J.P. Meyn, “Effect of proton exchange on periodically poled ferroelectric domains in lithium tantalate,” Optical Materials, vol. 15, pp. 27-32, 2000.

SCImago Journal & Country Rank

7.

P. Aschiéri, V. Rastogi, L. Chanvillard, P. Baldi, M. De Micheli, D. B. Ostrowsky, G. Bellanca, P. Bassi, K. Thyagarajan and M. R. Shenoy, “Experimental observation of longitudinal modulation of mode fields in periodically segmented waveguides,” Applied Optics, vol. 38, pp. 5734-5737, 1999.

SCImago Journal & Country Rank

6.

K. El Hadi, V. Rastogi, M. R. Shenoy, K. Thyagarajan, M. De Micheli, and D. B. Ostrowsky, “Spectral measurements of the film-substrate index difference in proton exchanged LiNbO3 waveguides,” Applied Optics, vol. 37, pp. 6463-6467, 1998.

SCImago Journal & Country Rank

5.

V. Rastogi, A. K. Ghatak, D. B. Ostrowsky, K. Thyagarajan, M. R. Shenoy, “ Ray analysis of parabolic-index segmented planar waveguides,” Applied Optics, vol. 37, pp. 4851-4856, 1998.

SCImago Journal & Country Rank

4.

V. Rastogi, V. Mahalakshmi, M. R. Shenoy, and K. Thyagarajan, “Propagation characteristics of a novel complementary-structure planar segmented waveguide,” Optics Communications, vol. 148, pp. 230-235, 1998.

SCImago Journal & Country Rank

3.

V. Rastogi, K. Thyagarajan, M. R. Shenoy, P. Baldi, M. De Micheli, and D. B. Ostrowsky, “Modeling of large-bandwidth parametric amplification in the Cerenkov-idler configuration in planar waveguides,” J. Opt. Soc. of America B, Special issue on Nonlinear Guided Waves: Physics and Applications, vol. 14, pp. 3191-3196, 1997.

SCImago Journal & Country Rank

2.

K. Thyagarajan, V. Rastogi, M. R. Shenoy, D. B.Ostrowsky, M. De Micheli, and P. Baldi, “Modeling of parametric amplification in the Cerenkov-idler configuration in planar waveguides,” Optics Letters, vol. 21, pp. 1631-1633, 1996.

SCImago Journal & Country Rank

1.

K. Thyagarajan, V. Rastogi, V. Mahalakshmi, and M. R. Shenoy, “Propagation characteristics of novel gain-guided segmented planar waveguides,” Optics Communications, vol. 121, pp. 19-26, 1995.

SCImago Journal & Country Rank