Institute for Materials Research

FACULTY OF ENGINEERING

 

Photonics

Photonics research and expertise is within the following areas:

 

Research Team

The Photonics research team is lead by Professor Animesh Jha (a.jha@leeds.ac.uk)

Post Doctoral Researchers
Dr Gin Jose (g.jose@leeds.ac.uk)
Dr Billy Richards (b.d.o.richards04@leeds.ac.uk)

Postgraduate Researchers

Mehrdad Irannejad (pm07mi@leeds.ac.uk)
Xin Jiang (prexj@leeds.ac.uk)
Zhanxiang Zhao (pmzxz@leeds.ac.uk)

Recent publications are listed within Professor Jha’s ‘ULPD’ entry – those publications which relate specifically to the Photonics area are copied below.

 

Equipment and Research Facilities

1. Glass preparation laboratory

2. Optical Fibre drawing facility

3. Thermal analysis laboratory (DTA, DMA, DSC)

4. Spectroscopic laboratory    
a. Spectrophotometer UV-VIS-NIR (Perkin Elmer)    
b. Spectrofluorimeter with lifetime measurement (200nm-3000nm) (Edinburg    Instruments)     c. FTIR Spectrometer 400-7500cm-1 (Bruker)    
d. Micro-Raman Spectrometer equipped with Ar-ion Laser (Renishaw Invia)    
e. M-line spectrometer with different wavlength options (Metricon)

5. Fibre/waveguide measurement facility    
a. Optical Spectrum Analyser    
b. Fusion Splicer, fibre cutting Machine    
c. Tunable Laser (Agilent 82140)    
d. High Power Laser diodes (980nm, 1480nm, 800nm)    
e. Waveguide/fibre alignment stages, WDM, etc

6. Dual Pulsed Laser Deposition (PLD) System (PVD Products Inc) with two lasers: Excimer (193nm, 258nm and 351nm) and Femtosecond Laser (Coherent Libra)

 

Bulk Glass Engineering

Bulk glasses with different rare earth dopants showing visible ubconversion fluorescence under laser excitation    

 

Novel Optical Fibres

Cross sections of single core and multicore tellurite optical fibres manufactured at Leeds. Cross sections of single core and multicore tellurite optical fibres manufactured at Leeds.
Thulium doped fibre in laser experiment showing blue upconversion fluorescence

 

Spectroscopy: Spectroscopy results from Tm3+ doped tellurite.

SPECTROSCOPY : Spectroscopy results from Tm3+ doped tellurite.

 

Thin Film Integrated Optics

Image of Excimer laser produced plasma plume in Lead silicate glass Image of Excimer laser produced plasma plume in Tellurite glass Image of Excimer laser produced plasma plume in Lead Germanate glass

 

Published research (to date from 2003)

Richards, B.D.; Shen, S.; Jha, A., Infrared emission and energy transfer in Tm3+, Tm3+-Ho3+ and Tm3+-Yb3+-doped tellurite fibre Optics Express, 15, pp.6546-6551, 2007

Richards B.D.; Evans, C.A.; Ikonic, Z.; Harrison, P.; Lousteau J.; Jha A., Numerical rate equation modelling of a 1.61 µm pumped ~2 µm Tm3+-doped tellurite fibre laser Proceedings - SPIE, 6998, pp.1, 2007

Shen, S.; Richards B.D.; Jha, A., Enhancement of pump inversion efficiency at 980 nm in Er3+, Er3+/Ce3+, and Er3+/Eu3+ doped tellurite glass fibres Optics Express, 14, pp.5050-5054, 2006

Thomson, R.R.; Campbell, S.; Blewett, I.J.; Kar, A.K.; Reid, D.T.; Shen, S.; Jha, A., Active waveguide fabrication in erbium-doped oxyfluoride silicate glass using femtosecond pulses Applied Physics Letters, 87, pp.121102, 2005

Thomson, R.R.; Bookey, H.T.; Kar, A.K.; Taghizadeh, M.R.; Klini, A.; Fotakis, C.; Romano, E.; Caricato, A.P.; Jha, A.; Shen, S.; Martino, M., Erbium-doped waveguide fabrication via reactive pulsed laser deposition of erbium-doped oxyfluoride-silicate glass Electronics Letters, 41, pp.1376-1377, 2005

Jha, A.; Shen, S.; Batchelor, C.A., Response to "comment on 'Enhanced room-temperature emission in Cr4+ ions containing alumino-silicate glasses' [Appl. Phys. Lett. 87, 066103 (2005)]" Applied Physics Letters, 87, 2005

Shen, S.; Jha, A.; Huang, H.; Joshi, P., 980-nm diode-pumped Tm<sup>3+</sup>/Yb<sup>3+</sup>-codoped tellurite fiber for S-band amplification Optics Letters, 30, pp.1437-1439, 2005

Shen, S.; Jha, A., The influence of F-ion doping on the fluorescence (<sup>4</sup>l<sub>13/2</sub> <sup>4</sup>l<sub>15/2</sub>) line shape broadening in Er<sup>3+</sup> -doped oxyfluoride silicate glasses Optical Materials, 25, pp.321-333, 2004

Huang, H.; Jha, A.; Shen, S., Visible emissions at 592 and 613 nm in Er3+-Eu3+ - codoped tellurite fibers Optics Communications, 239, pp.403-408, 2004

Huang, H.; Jha, A.; Shen, S., Broadband emission in Er3+ - Tm3+ codoped tellurite fibre Optics Express, 12, pp.2429-2434, 2004

Chung, W.J.; Jha, A.; Shen, S.; Joshi, P., The effect of Er<sup>3+</sup>-ion concentration on the Er<sup>3+</sup>:<sup>4</sup>I<sub>13/2</sub> <sup>4</sup>I<sub>15/2</sub> transition in tellurite glasses Philosophical Magazine, 84, pp.1197-1207, 2004

Jha, A.; Shen, S.; Huang, L.; Joshi, P., Spectroscopic properties of rare earth metal ion doped tellurium oxide glasses and fibres Journal of Optics, 33, pp.157-170, 2004

Huang, H.; Shen, S.; Jha, A., Near infrared spectroscopic investigation of Tm3+ - Yb3+ co-doped tellurite Journal of Non-Crystalline Solids, 345, pp.349-353, 2004

Shen, S.; Huang, L.; Joshi, P.; Jha, A., Gain characteristics of Er<sup>3+</sup>/Ce<sup>3+</sup> codoped tellurite short fibre amplifier pumped at 980 nm, Electronics Letters, 39, 2003

Martino M.; Caricato A.P.; Resta, V.; Jha, A.; Shen, S., Doped Telurite Waveguides Fabricated by Pulsed Laser Deposition CLEO/Europe-EQEC 2003, Munich, 22-27 June 2003, 2003

Shen, S.; Jha, A.; Wilson, S.; Zhang, E., The Effect of composition on the emission spectra of Tm3+-doped tellurite glasses for an S-Band amplifier operating at 1.46 mm Journal of Non-Crystalline Solids, 326-327, pp.510-514, 2003

Batchelor, C.A.; Chung, W.J.; Shen, S.; Jha, A., Enhanced room-temperature emission in Cr<sup>4+</sup> ions containing alumino-silicate glasses Applied Physics Letters, 82, pp.4035-4037, 2003

Yang, X.; Jha, A.; Brydson, R.M.D.; Cochrane, R.C., Analysis of the Microstructure and Interfacial Chemistry of Steel-Enamel Interface Thin Solid Films, 443, pp.33-45, 2003

Martino, M.; Caricato, A.; Fernandez, M.; Leggierie, G.; Jha, A., Pulsed laser deposition of active waveguides Thin Solid Films, 433, pp.39-44, 2003

Caricato, A.; De Sario, M.; Fernandez M.; Ferrari, M.; Martino, M.; Jha, A., Chalcogenide Glass thin Film waveguides deposited by excimer laser ablation Applied Surface Science, 208-209, pp.632-637, 2003

Jha, A.; Martino M.; Shen, S.; Resta V.; Mattarelli, M.; Terrari, M., Pulsed Laser Deposition of Highly-doped Er-ion containing Modified Silicate Glass for Waveguide Amplifier, CLEO/Europe-EQEC 2003, Munich, 22-27 June 2003, 2003

Liu, X.; Shen, S.; Jha, A., Investigation on the kinetics of devitrification of GeS<sub.2</sub>-based glasses Journal of Materials Research, 20, pp.856-863, 2005

Kale, B.B.; Jha, A.; Apte, S.K.; Adhyapak , P.V.; Amalnerkar, D.P., Removal of OH impurities from GeS2 by reactive atmosphere and its glass preparation Materials Chemistry and Physics, 78, pp.330-336, 2003

Chung, W.J.; Heo, J.; Jha, A., “Effect of alkali halides on the Persistent Spectral Hole-burning in Ge-Ga-S glasses doped with Eu3+ Journal of Non-Crystalline Solids, 326, pp.292-295, 2003

Chung, W.J.; Heo, J.; Jha, A., Effect of alkali halides on the persistent spectral hole burning in Ge-Ga-S glasses doped with Eu3+ Journal of Non-Crystalline Solids, 326, pp.292-295, 2003