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1

Optical absorption and emission properties of Pr3+ and Er3+ in lithium cesium mixed alkali borate glasses

Y.C. Ratnakaram, A. Vijaya kumar, R.P.S. Chakradhar

Journal:

Journal of Luminescence

Year:

2006

Language:

english

File:

PDF, 279 KB

english, 2006

2

Optical absorption and photoluminescence properties of Nd3+ doped mixed alkali phosphate glasses-spectroscopic investigations

Y.C. Ratnakaram, N.V. Srihari, A.Vijaya Kumar, D. Thirupathi Naidu, R.P.S. Chakradhar

Journal:

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy

Year:

2009

Language:

english

File:

PDF, 513 KB

english, 2009

3

Effect of modifier oxides on absorption and emission properties of Eu3+ doped different lithium fluoroborate glass matrices

Ratnakaram, Y.C., Balakrishna, A., Rajesh, D.

Journal:

Physica B: Condensed Matter

Year:

2012

Language:

english

File:

PDF, 636 KB

english, 2012

4

Luminescence properties of Dy3+ doped zinc-aluminium-sodium-phosphate (ZANP) glasses for white light applications

Brahmachary, K., Rajesh, D., Ratnakaram, Y.C.

Journal:

Optik - International Journal for Light and Electron Optics

Year:

2015

Language:

english

File:

PDF, 1.09 MB

english, 2015

5

Compositional-dependent properties of Pr3+-doped multicomponent fluoro-phosphate glasses for visible applications: a photoluminescence study

Babu, S., Rajput, P., Ratnakaram, Y. C.

Journal:

Journal of Materials Science

Year:

2016

Language:

english

File:

PDF, 2.91 MB

english, 2016

6

ChemInform Abstract: Spectroscopic and Laser Properties of Sm3+ Doped Different Phosphate Glasses

M. Seshadri, K. Venkata Rao, J. L. Rao, Y. C. Ratnakaram

Journal:

Year:

2009

File:

PDF, 15 KB

2009

7

Optical absorption spectra and laser analysis of Nd(III) in fluoroborate glasses

Y.C Ratnakaram, S Buddudu

Journal:

Solid State Communications

Year:

1996

Language:

english

File:

PDF, 389 KB

english, 1996

8

Studies on optical absorption and luminescence properties of Dy3+ doped mixed alkali borate glasses

Y.C. Ratnakaram, D. Thirupathi Naidu, A. Vijayakumar, J.L. Rao

Journal:

Optical Materials

Year:

2004

Language:

english

File:

PDF, 355 KB

english, 2004

9

Spectroscopic investigations on Ho3+ doped mixed alkali phosphate glasses

Y.C. Ratnakaram, N.V. Srihari, D. Thirupathi Naidu, A. Vijayakumar, R.P.S. Chakradhar

Journal:

Optical Materials

Year:

2008

Language:

english

File:

PDF, 801 KB

english, 2008

10

Influence of mixed alkalis on spectroscopic parameters of Sm3+, Dy3+ doped chloroborate glasses

C. Venkateswarlu, M. Seshadri, Y.C. Ratnakaram

Journal:

Optical Materials

Year:

2011

Language:

english

File:

PDF, 877 KB

english, 2011

11

Optical absorption and luminescence properties of Nd3+ in mixed alkali borate glasses—Spectroscopic investigations

Y.C. Ratnakaram, A. Vijaya kumar, D.Thirupathi Naidu, R.P.S. Chakradhar, K.P. Ramesh

Journal:

Journal of Luminescence

Year:

2004

Language:

english

File:

PDF, 303 KB

english, 2004

12

Characterization of Tm3+ doped mixed alkali borate glasses—spectroscopic investigations

Y.C Ratnakaram, D Thirupathi Naidu, A Vijaya Kumar, J.L Rao

Journal:

Journal of Physics and Chemistry of Solids

Year:

2003

Language:

english

File:

PDF, 167 KB

english, 2003

13

Investigation of spectroscopic properties (absorption and emission) of Ho3+ doped alkali, mixed alkali and calcium phosphate glasses

M. Seshadri, Y.C. Ratnakaram, D. Thirupathi Naidu, K. Venkata Rao

Journal:

Optical Materials

Year:

2010

Language:

english

File:

PDF, 677 KB

english, 2010

14

Influence of mixed alkalies on absorption and emission properties of Sm3+ ions in borate glasses

Y.C. Ratnakaram, D. Thirupathi Naidu, A. Vijaya Kumar, N.O. Gopal

Journal:

Physica B: Condensed Matter

Year:

2005

Language:

english

File:

PDF, 563 KB

english, 2005

15

Synthesis, characterization and optical properties of LaAlO3:Ho3+ phosphor

Vijay Singh, D.T. Naidu, R.P.S. Chakradhar, Y.C. Ratnakaram, Jun-Jie Zhu, Manish Soni

Journal:

Physica B: Condensed Matter

Year:

2008

Language:

english

File:

PDF, 316 KB

english, 2008

16

Optical and luminescence studies of Pr3+ and Er3+ doped different phosphate glasses

K. Venkata Rao, Y.C. Ratnakaram, M. Seshadri, J.L. Rao

Journal:

Physica B: Condensed Matter

Year:

2010

Language:

english

File:

PDF, 661 KB

english, 2010

17

Optical absorption and photoluminescence properties of Er3+ doped mixed alkali borate glasses

Y.C. Ratnakaram, A. Vijaya Kumar, D. Tirupathi Naidu, J.L. Rao

Journal:

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy

Year:

2005

Language:

english

File:

PDF, 402 KB

english, 2005

18

Absorption and emission properties of Nd3+ in lithium cesium mixed alkali borate glasses

Y.C. Ratnakaram, A. Vijaya kumar, D. Tirupathi Naidu, R.P.S. Chakradhar

Journal:

Solid State Communications

Year:

2005

Language:

english

File:

PDF, 239 KB

english, 2005

19

Optical absorption spectra and Judd-Ofelt analysis of Nd3+ in certain chloroborate glasses

Y.C. Ratnakaram, N. Sudharani

Journal:

Journal of Physics and Chemistry of Solids

Year:

1998

Language:

english

File:

PDF, 460 KB

english, 1998

20

Electronic absorption spectra and energy gap studies of Er3+ ions in different chlorophosphate glasses

Y.C. Ratnakaram, A.Viswanadha Reddy, R.P.Sreekanth Chakradhar

Journal:

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy

Year:

2002

Language:

english

File:

PDF, 215 KB

english, 2002

21

Influence of Nd3+ concentration on its optical absorption and luminescence properties in potassium borate glass

Y. C. Ratnakaram, Md. Abdul Altaf, R. P. S. Chakradhar, J. L. Rao, J. Ramakrishna

Journal:

physica status solidi (b)

Year:

2003

Language:

english

File:

PDF, 108 KB

english, 2003

22

Correlation of radiative properties of rare earth ions (Pr3+and Nd3+) in chlorophosphate glasses—0.1 and 0.5 mol% concentrations

Y. C. Ratnakaram, A. Viswanadha Reddy

Journal:

Bulletin of Materials Science

Year:

2001

Language:

english

File:

PDF, 160 KB

english, 2001

23

Optical absorption and fluorescence properties of Er3+in sodium borate glass

Y. C. Ratnakaram, J. Lakshmi, R. P. S. Chakradhar

Journal:

Bulletin of Materials Science

Year:

2005

Language:

english

File:

PDF, 135 KB

english, 2005

24

Electron paramagnetic resonance studies on clinochlore from Longitudinal Valley area, northeastern Taiwan

G. N. Hemanthkumar, G. Parthasarathy, R. P. S. Chakradhar, I. Omkaram, J. Lakshmana Rao, Y. C. Ratnakaram

Journal:

Physics and Chemistry of Minerals

Year:

2009

Language:

english

File:

PDF, 330 KB

english, 2009

25

Temperature dependence on the electron paramagnetic resonance spectra of natural jasper from Taroko Gorge (Taiwan)

G. N. Hemantha Kumar, G. Parthasarathy, R. P. S. Chakradhar, J. Lakshmana Rao, Y. C. Ratnakaram

Journal:

Physics and Chemistry of Minerals

Year:

2010

Language:

english

File:

PDF, 331 KB

english, 2010

26

Spectral Investigations on Ho3+Doped Mixed Alkali Chloroborate Glasses

C. Venkateswarlu, Y. C. Ratnakaram, M. Seshadri, D. Thirupathi Naidu

Journal:

Brazilian Journal of Physics

Year:

2011

Language:

english

File:

PDF, 250 KB

english, 2011

27

Mixed alkali effect in borate glasses—optical absorption studies in Ho3+dopedx(Na2O) · (30 −x)(K2O) · 70(B2O3) glasses

Y. C. Ratnakaram, R. P. Sreekanth Chakradhar, K. P. Ramesh, J. L. Rao, J. Ramakrishna

Journal:

Journal of Materials Science

Year:

2003

Language:

english

File:

PDF, 144 KB

english, 2003

28

Spectroscopic investigations of Nd3+ion in lead acetate glass

Y C Ratnakaram, N Sudharani, S Buddhudu

Journal:

Bulletin of Materials Science

Year:

1996

Language:

english

File:

PDF, 264 KB

english, 1996

29

Evaluation of judd-ofelt intensity parameters for sm3+ and Dy3+ in a laser liquid

Y.C. Ratnakaram, S. Buddhudu

Journal:

Materials Chemistry and Physics

Year:

1985

Language:

english

File:

PDF, 329 KB

english, 1985

30

Structural and luminescence properties of Dy3+ ion in strontium lithium bismuth borate glasses

D. Rajesh, Y.C. Ratnakaram, M. Seshadri, A. Balakrishna, T. Satya Krishna

Journal:

Journal of Luminescence

Year:

2012

Language:

english

File:

PDF, 966 KB

english, 2012

31

Visual loss due to central serous chorioretinopathy during corticosteroid treatment for giant cell arteritis

Timothy Bevis, Ramakrishna Ratnakaram, M Fran Smith, M Tariq Bhatti

Journal:

Clinical & Experimental Ophthalmology

Year:

2005

Language:

english

File:

PDF, 948 KB

english, 2005

32

Optical absorption spectra and radiative intensities of Pr3+ in sulphate glasses

S.V.J. Lakshman, Y.C. Ratnakaram

Journal:

Journal of Non-Crystalline Solids

Year:

1988

Language:

english

File:

PDF, 269 KB

english, 1988

33

Spectral studies of praseodymium(III) and thulium(III) in certain sulphate glasses

S.V.J. Lakshman, Y.C. Ratnakaram

Journal:

Journal of the Less Common Metals

Year:

1986

Language:

english

File:

PDF, 339 KB

english, 1986

34

Spectroscopic and laser properties of Sm3+ doped different phosphate glasses

M. Seshadri, K. Venkata Rao, J.L. Rao, Y.C. Ratnakaram

Journal:

Journal of Alloys and Compounds

Year:

2009

Language:

english

File:

PDF, 682 KB

english, 2009

35

Fluorescence and Judd–Ofelt analysis of Nd3+ doped P2O5–Na2O–K2O glass

G.N. Hemantha Kumar, J.L. Rao, K. Ravindra Prasad, Y.C. Ratnakaram

Journal:

Journal of Alloys and Compounds

Year:

2009

Language:

english

File:

PDF, 510 KB

english, 2009

36

Studies on optical absorption and photoluminescence properties of Pr3+ and Nd3+ doped mixed alkali chloroborate glasses

C. Venkateswarlu, G.N. Hemantha Kumar, M. Seshadri, Y.C. Ratnakaram, K.S.R. Koteswara Rao, J.L. Rao

Journal:

Journal of Alloys and Compounds

Year:

2010

Language:

english

File:

PDF, 433 KB

english, 2010

37

Spectral studies of Sm3+ and Dy3+ doped lithium cesium mixed alkali borate glasses

Y.C. Ratnakaram, D. Thirupathi Naidu, R.P.S. Chakradhar

Journal:

Journal of Non-Crystalline Solids

Year:

2006

Language:

english

File:

PDF, 469 KB

english, 2006

38

Compositional dependencies of optical absorption and emission properties of Pr3+ in mixed alkali borate glasses

Y.C. Ratnakaram, A. Vijaya Kumar, D. Thirupathi Naidu, N.O. Gopal

Journal:

Materials Letters

Year:

2004

Language:

english

File:

PDF, 296 KB

english, 2004

39

Influence of modifier oxides on spectroscopic properties of Sm3+ doped lithium fluoroborate glass

Y.C. Ratnakaram, A. Balakrishna, D. Rajesh, M. Seshadri

Journal:

Journal of Molecular Structure

Year:

2012

Language:

english

File:

PDF, 959 KB

english, 2012

40

Spectroscopic investigations on Pr3+ and Nd3+ doped strontium–lithium–bismuth borate glasses

D. Rajesh, A. Balakrishna, M. Seshadri, Y.C. Ratnakaram

Journal:

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy

Year:

2012

Language:

english

File:

PDF, 1.83 MB

english, 2012

41

Electronic spectra and optical band gap studies in neodymium chlorophosphate glasses

Y.C Ratnakaram, A Viswanadha Reddy

Journal:

Journal of Non-Crystalline Solids

Year:

2000

Language:

english

File:

PDF, 261 KB

english, 2000

42

Spectroscopic investigations of Er3+ in H3BO3Na2CO3RCl glasses

Y.C. Ratnakaram, N. Sudharani

Journal:

Journal of Non-Crystalline Solids

Year:

1997

Language:

english

File:

PDF, 411 KB

english, 1997

43

Diagnostic use of a rigid contact lens to show corneal topography abnormalities after laser refractive surgery

Peter S Hersh, Ramakrishna Ratnakaram, Donald Hersh, Kristen Fry

Journal:

Journal of Cataract & Refractive Surgery

Year:

2002

Language:

english

File:

PDF, 358 KB

english, 2002

44

Spectroscopic investigations and luminescence spectra of Nd3+ and Dy3+ doped different phosphate glasses

M. Seshadri, K. Venkata Rao, J. Lakshmana Rao, K.S.R. Koteswara Rao, Y.C. Ratnakaram

Journal:

Journal of Luminescence

Year:

2010

Language:

english

File:

PDF, 431 KB

english, 2010

45

Luminescence, structural and dielectric properties of Sm3+ impurities in strontium lithium bismuth borate glasses

D. Rajesh, A. Balakrishna, Y.C. Ratnakaram

Journal:

Optical Materials

Year:

2012

Language:

english

File:

PDF, 1.22 MB

english, 2012

46

Optical studies of erbium(III) in certain sulphate glasses

S.V.J. Lakshman, Y.C. Ratnakaram

Journal:

Journal of Non-Crystalline Solids

Year:

1987

Language:

english

File:

PDF, 335 KB

english, 1987

47

Poster 73 - Suspicious Melanocytic Choroidal Lesions

Joni Scott-Weideman, Mischelle Pearcy-Baluyot, Penny Straughn, Ramakrishna Ratnakaram

Journal:

Optometry - Journal of the American Optometric Association

Year:

2005

Language:

english

File:

PDF, 125 KB

english, 2005

48

Antifungal activities of novel 1,2,3-benzotriazole derivatives synthesized by ultrasonic and solvent-free conditions

Sudhir, Muvvala S., Venkata Nadh, Ratnakaram, Radhika, Sugreevu

Journal:

Drug Invention Today

Year:

2013

Language:

english

File:

PDF, 399 KB

english, 2013

49

Er3+-doped strontium lithium bismuth borate glasses for broadband 1.5μm emission – Structural and optical properties

Rajesh, D., Ratnakaram, Y.C., Balakrishna, A.

Journal:

Journal of Alloys and Compounds

Year:

2013

Language:

english

File:

PDF, 655 KB

english, 2013

50

Investigations on spectroscopic properties of Pr3+ and Nd3+ doped zinc-alumino-sodium-phosphate (ZANP) glasses

Brahmachary, K., Rajesh, D., Babu, S., Ratnakaram, Y.C.

Journal:

Journal of Molecular Structure

Year:

2014

Language:

english

File:

PDF, 1.69 MB

english, 2014