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{{Short description|Indian physicist (1973-)}}
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{{Use Indian English|date=December 2019}}
{{Infobox scientist
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| caption = Ambarish Ghosh receiving SSB award from Prime Minister Modi
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| birth_date = {{birth date and age|df=yes|1973|12|18}}
| birth_place = [[Kolkata]], India
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'''Ambarish Ghosh''' is an Indian scientist, an Associate Professor at the Centre for Nano Science and Engineering(CeNSE), [[Indian Institute of Science]], [[Bangalore]]. He is known for his work on [[nanorobots]], [[active matter physics]], [[plasmonics|Plasmonics and Nanophotonics]] and [[liquid helium]].
'''Ambarish Ghosh''' is an Indian scientist, a faculty member at the Centre for Nano Science and Engineering (CeNSE), [[Indian Institute of Science]], [[Bangalore]]. He is also an associate faculty at the Department of Physics. He is known for his work on [[nanorobots]], [[active matter physics]], [[plasmonics]], [[metamaterials]] and electron bubbles in [[liquid helium]].

⚫
== Research work==
[[File:IISc Admin Building.jpg|thumb|left|Indian Institute of Science]]


⚫
== Research Work==
===Magnetic nanorobots===
===Magnetic nanorobots===
In 2009 he along with [[Peer Fischer]] demonstrated the use of glancing angle deposition to fabricate magnetic helical nanoswimmers,<ref>{{cite journal |cite journal |author= Ghosh, A.|author2= Fischer, P. |title= Controlled Propulsion of Artificial Magnetic Nanostructured Propellers |journal= Nano Letters |volume=9 |issue=6 |pages=2243–2245 |date=2009 |doi=10.1021/nl900186w }}</ref>. His group figured out the dynamics of such nanorobots<ref>{{cite journal |author= Ghosh, A. et. al.|title= Analytical theory and stability analysis of an elongated nanoscale object under external torque |journal= Phys. Chem. Chem. Phys. |volume=15 |issue=26 |date=2013 |doi= 10.1039/C3CP50701G }}</ref> and presented techniques for independent control of such robots<ref>{{cite journal |author= Mandal, P. et. al |title= Independent positioning of magnetic nanomotors |journal= ACS Nano |volume=9 |issue=5 |date=2015 |doi=10.1021/acsnano.5b01518}}</ref>.
In 2009, he along with [[Peer Fischer]] demonstrated the use of glancing-angle deposition to fabricate magnetic helical nanorobots.<ref>{{cite journal |last1=Ghosh |first1=Ambarish |last2=Fischer |first2=Peer |title=Controlled Propulsion of Artificial Magnetic Nanostructured Propellers |journal=Nano Letters |date=10 June 2009 |volume=9 |issue=6 |pages=2243–2245 |doi=10.1021/nl900186w |pmid=19413293 |bibcode=2009NanoL...9.2243G }}</ref> His group worked out the theoretical formulae to describe the dynamics of such nanorobots<ref>{{cite journal |last1=Ghosh |first1=Arijit |last2=Mandal |first2=Pranay |last3=Karmakar |first3=Suman |last4=Ghosh |first4=Ambarish |title=Analytical theory and stability analysis of an elongated nanoscale object under external torque |journal=Physical Chemistry Chemical Physics |date=2013 |volume=15 |issue=26 |pages=10817 |doi=10.1039/c3cp50701g |pmid=23694848 |bibcode=2013PCCP...1510817G }}</ref> and presented techniques for their independent control.<ref>{{cite journal |last1=Mandal |first1=Pranay |last2=Chopra |first2=Vaishali |last3=Ghosh |first3=Ambarish |title=Independent Positioning of Magnetic Nanomotors |journal=ACS Nano |date=17 April 2015 |volume=9 |issue=5 |pages=4717–4725 |doi=10.1021/acsnano.5b01518 |pmid=25824608 }}</ref>

In recent years his group has managed to demonstrate the various applications of helical nanorobots including techniques to move in [[blood]]<ref>https://www.nanowerk.com/spotlight/spotid=35255.php</ref>. This includes the use of nanorobots in active colloidal manipulation <ref>{{cite journal |author= Ghosh, S.|author2= Ghosh, A. |title= Mobile nanotweezers for active colloidal manipulation |journal= Science Robotics |volume=3 |issue=14 |date=2018 |doi=10.1126/scirobotics.aaq0076 }}</ref> and as probes for sensing the environment inside living cells <ref>{{cite journal |author= Pal, M. et. al.|title= Maneuverability of Magnetic Nanomotors Inside Living Cells |journal= Advanced Materials |volume=30 |issue=22 |date=2018 |doi=10.1002/adma.201800429 }}</ref> <ref>{{cite journal |author= Ghosh, A. et. al.|title= Helical Nanomachines as Mobile Viscometers |journal= Advanced Functional Materials |volume=28 |issue=25 |date=2018 |doi=10.1002/adfm.201705687 }}</ref>.
In recent years his group has managed to demonstrate various applications of helical nanorobots including techniques to move in important biological environments, such as [[blood]].<ref>{{cite journal |last1=Ghosh |first1=Souvik |last2=Ghosh |first2=Ambarish |title=Mobile nanotweezers for active colloidal manipulation |journal=Science Robotics |date=10 January 2018 |volume=3 |issue=14 |pages=eaaq0076 |doi=10.1126/scirobotics.aaq0076 |doi-access=free }}</ref> and as probes for sensing<ref name="Sensing">{{Cite web |url=https://www.youtube.com/watch?v=yBifxe57_74|title=Nanorobots as Mobile Viscometers}}</ref> the environment inside living cells.<ref>{{cite journal |last1=Pal |first1=Malay |last2=Somalwar |first2=Neha |last3=Singh |first3=Anumeha |last4=Bhat |first4=Ramray |last5=Eswarappa |first5=Sandeep M. |last6=Saini |first6=Deepak K. |last7=Ghosh |first7=Ambarish |title=Maneuverability of Magnetic Nanomotors Inside Living Cells |journal=Advanced Materials |date=May 2018 |volume=30 |issue=22 |pages=1800429 |doi=10.1002/adma.201800429 |pmid=29635828 }}</ref><ref>{{cite journal |last1=Ghosh |first1=Arijit |last2=Dasgupta |first2=Debayan |last3=Pal |first3=Malay |last4=Morozov |first4=Konstantin I. |last5=Leshansky |first5=Alexander M. |last6=Ghosh |first6=Ambarish |title=Helical Nanomachines as Mobile Viscometers |journal=Advanced Functional Materials |date=June 2018 |volume=28 |issue=25 |pages=1705687 |doi=10.1002/adfm.201705687 }}</ref>


===Plasmonics and Metamaterials===
===Plasmonics and Metamaterials===
Ambarish Ghosh and his group demonstrated a wafer scale technology to fabricate porous 3D plasmonic metamaterials which can be used over a wide range of wavelengths, including the visible. These metal-dielectric nanostructured films can be made in various geometries<ref>{{cite journal |last1=Johnson Singh |first1=Haobijam |last2=Ghosh |first2=Ambarish |title=Porous Three Dimensional Arrays of Plasmonic Nanoparticles |journal=The Journal of Physical Chemistry C |date=4 September 2012 |volume=116 |issue=36 |pages=19467–19471 |doi=10.1021/jp3062702 }}</ref><ref>{{cite journal |last1=Singh |first1=Johnson Haobijam |last2=Nair |first2=Greshma |last3=Ghosh |first3=Arijit |last4=Ghosh |first4=Ambarish |title=Wafer scale fabrication of porous three-dimensional plasmonic metamaterials for the visible region: chiral and beyond |journal=Nanoscale |date=2013 |volume=5 |issue=16 |pages=7224 |doi=10.1039/C3NR02666C |bibcode=2013Nanos...5.7224S }}</ref><ref>{{cite journal |last1=Singh |first1=Haobijam Johnson |last2=Ghosh |first2=Ambarish |title=Harnessing magnetic dipole resonance in novel dielectric nanomaterials |journal=Nanoscale |date=2018 |volume=10 |issue=34 |pages=16102–16106 |doi=10.1039/C8NR04666B }}</ref> and configurations. Very recently, they have demonstrated a novel technique to integrate plasmonic nanoparticles with graphene in a sandwich configuration, allowing them to achieve unprecedented electromagnetic field enhancement and photodetection sensitivity.<ref>{{cite journal |last1=Paria |first1=Debadrita |last2=Roy |first2=Kallol |last3=Singh |first3=Haobijam Johnson |last4=Kumar |first4=Shishir |last5=Raghavan |first5=Srinivasan |last6=Ghosh |first6=Arindam |last7=Ghosh |first7=Ambarish |title=Ultrahigh Field Enhancement and Photoresponse in Atomically Separated Arrays of Plasmonic Dimers |journal=Advanced Materials |date=March 2015 |volume=27 |issue=10 |pages=1751–1758 |doi=10.1002/adma.201404312 }}</ref> In 2019, his group showed the application of metal-dielectric hybrid nanorods in active opto-fluidic manipulation of sub-micron colloids.
Ambarish Ghosh and his group has developed a wafer scale technology to fabricate porous 3D plasmonic metamaterial which can be used over a wide range of wavelengths, including the visible. This technology allows a wide range of materials and geometries, and therefore highly versatile. They have used Glancing Angle Deposition for generating various porous 3D dielectric structures and have integrated plasmonics to develop an arrangement of metal-dielectric layers in 3D.
Very recently, they have demonstrated a conceptually novel method to integrate plasmonic nanoparticles with graphene, allowing them to achieve unprecedented EM field enhancement and photodetection sensitivity.


===Liquid Helium and Multi-electron Bubble===
===Electron bubbles in Liquid Helium===
The group led by Ambarish Ghosh demonstrated trapping<ref>{{cite journal |last1=Vadakkumbatt |first1=Vaisakh |last2=Joseph |first2=Emil |last3=Pal |first3=Anustuv |last4=Ghosh |first4=Ambarish |title=Studying electrons on curved surfaces by trapping and manipulating multielectron bubbles in liquid helium |journal=Nature Communications |date=1 August 2014 |volume=5 |issue=1 |pages=4571 |doi=10.1038/ncomms5571 |pmid=25081283 |bibcode=2014NatCo...5.4571V |doi-access=free }}</ref> of multielectron bubbles in liquid helium-4, which can open up new avenues in the study of two-dimensional electron systems at high densities, and on curved surfaces. The same group also performed high speed imaging<ref name="EB">{{Cite web |url=https://www.youtube.com/watch?v=bjDl23xBdyE|title=Electron Bubble Explosion in Liquid Helium}}</ref> of the "explosion" of an electron bubbles triggered by focused ultrasound.


== Awards and honors ==
== Recognition ==
[[File:AMBARISH-1600x800.jpg|thumb|Ambarish Ghosh receiving SSB award from Prime Minister Modi]]
The [[Council of Scientific and Industrial Research]], the apex agency of the Government of India for scientific research, awarded him the [[Shanti Swarup Bhatnagar Prize for Science and Technology]] for his contributions to physical sciences in 2018.<ref name="Bhatnagar">{{Cite web |url=http://ssbprize.gov.in/WriteReadData/LatestUpdates/201809260331397455401SSBPrize2018.pdf |title=Shanti Swarup Bhatnagar Prize (SSB) for Science and Technology 2018|date=2018-09-26 |publisher=Shanti Swarup Bhatnagar Prize |access-date=2018-09-26}}</ref>
Ambarish received the Young Career Award in Nano Science and Technology for 2017 from DST Nanomission, India. The [[Council of Scientific and Industrial Research]], the apex agency of the Government of India for scientific research, awarded him the [[Shanti Swarup Bhatnagar Prize for Science and Technology]] for his contributions to physical sciences in 2018.<ref name="Bhatnagar">{{Cite web |url=http://ssbprize.gov.in/WriteReadData/LatestUpdates/201809260331397455401SSBPrize2018.pdf |title=Shanti Swarup Bhatnagar Prize (SSB) for Science and Technology 2018|date=26 September 2018 |publisher=Shanti Swarup Bhatnagar Prize |access-date=2018-09-26}}</ref> He received the Prof. Ramakrishna Rao Chair Professorship<ref name="RRC">{{Cite web |url=https://www.iisc.ac.in/about/endowed-chairs/endowed-chairs-for-the-faculty/ |title= Ramakrishna Rao Chair Professorship|publisher=Indian Institute of Science |access-date=2019-11-03}}</ref> from 2017–2020. He was elected as Fellow of INAE (Indian National Academy of Engineering) in 2020,<ref>{{cite web |title=Umanand L, Ambarish Ghosh, & Pramod Kumar have been Elected as of Fellows of The Indian National Academy of Engineering w.e.f. Nov. 1, 2020 |url=https://www.iisc.ac.in/events/umanand-l-ambarish-ghosh-pramod-kumar-have-been-elected-as-of-fellows-of-the-indian-national-academy-of-engineering-w-e-f-nov-1-2020/ |website=Indian Institute of Science, Bengaluru |access-date=25 January 2021}}</ref> Fellow of Indian Academy of Sciences (IAS) in 2023, received P. K. Iyengar Memorial Award for Excellence in Experimental Physics 2022, and the Lam Research Unlock Idea Award in 2022.


== See also ==

[[Nanorobots]]
[[Plasmonics]]


== References ==
== References ==
{{Reflist}}

{{SSBPST recipients in Physical Science |state=collapsed}}
{{Authority control}}


{{DEFAULTSORT:Ghosh, Ambarish}}
[[Category:Recipients of the Shanti Swarup Bhatnagar Award in Physical Science]]
[[Category:Recipients of the Shanti Swarup Bhatnagar Award in Physical Science]]
[[Category:Scientists from West Bengal]]
[[Category:Scientists from West Bengal]]
[[Category:Indian physicists]]
[[Category:Indian physicists]]
[[Category:Bengali physicists]]
[[Category:Bengali scientists]]
[[Category:Academic staff of the Indian Institute of Science]]
[[Category:Living people]]
[[Category:Scientists from Kolkata]]
[[Category:IIT Kharagpur alumni]]
[[Category:Brown University alumni]]
[[Category:1973 births]]

Latest revision as of 05:53, 7 August 2024

Ambarish Ghosh
Born (1973-12-18) 18 December 1973 (age 51)
Kolkata, India
NationalityIndian
Alma mater
Awards
Scientific career
Fields
Institutions
Doctoral advisorHumphrey Maris
Websitehttp://www.cense.iisc.ac.in/ambarish/

Ambarish Ghosh is an Indian scientist, a faculty member at the Centre for Nano Science and Engineering (CeNSE), Indian Institute of Science, Bangalore. He is also an associate faculty at the Department of Physics. He is known for his work on nanorobots, active matter physics, plasmonics, metamaterials and electron bubbles in liquid helium.

Research work

[edit]
Indian Institute of Science

Magnetic nanorobots

[edit]

In 2009, he along with Peer Fischer demonstrated the use of glancing-angle deposition to fabricate magnetic helical nanorobots.[1] His group worked out the theoretical formulae to describe the dynamics of such nanorobots[2] and presented techniques for their independent control.[3]

In recent years his group has managed to demonstrate various applications of helical nanorobots including techniques to move in important biological environments, such as blood.[4] and as probes for sensing[5] the environment inside living cells.[6][7]

Plasmonics and Metamaterials

[edit]

Ambarish Ghosh and his group demonstrated a wafer scale technology to fabricate porous 3D plasmonic metamaterials which can be used over a wide range of wavelengths, including the visible. These metal-dielectric nanostructured films can be made in various geometries[8][9][10] and configurations. Very recently, they have demonstrated a novel technique to integrate plasmonic nanoparticles with graphene in a sandwich configuration, allowing them to achieve unprecedented electromagnetic field enhancement and photodetection sensitivity.[11] In 2019, his group showed the application of metal-dielectric hybrid nanorods in active opto-fluidic manipulation of sub-micron colloids.

Electron bubbles in Liquid Helium

[edit]

The group led by Ambarish Ghosh demonstrated trapping[12] of multielectron bubbles in liquid helium-4, which can open up new avenues in the study of two-dimensional electron systems at high densities, and on curved surfaces. The same group also performed high speed imaging[13] of the "explosion" of an electron bubbles triggered by focused ultrasound.

Recognition

[edit]
Ambarish Ghosh receiving SSB award from Prime Minister Modi

Ambarish received the Young Career Award in Nano Science and Technology for 2017 from DST Nanomission, India. The Council of Scientific and Industrial Research, the apex agency of the Government of India for scientific research, awarded him the Shanti Swarup Bhatnagar Prize for Science and Technology for his contributions to physical sciences in 2018.[14] He received the Prof. Ramakrishna Rao Chair Professorship[15] from 2017–2020. He was elected as Fellow of INAE (Indian National Academy of Engineering) in 2020,[16] Fellow of Indian Academy of Sciences (IAS) in 2023, received P. K. Iyengar Memorial Award for Excellence in Experimental Physics 2022, and the Lam Research Unlock Idea Award in 2022.

References

[edit]
  1. ^ Ghosh, Ambarish; Fischer, Peer (10 June 2009). "Controlled Propulsion of Artificial Magnetic Nanostructured Propellers". Nano Letters. 9 (6): 2243–2245. Bibcode:2009NanoL...9.2243G. doi:10.1021/nl900186w. PMID 19413293.
  2. ^ Ghosh, Arijit; Mandal, Pranay; Karmakar, Suman; Ghosh, Ambarish (2013). "Analytical theory and stability analysis of an elongated nanoscale object under external torque". Physical Chemistry Chemical Physics. 15 (26): 10817. Bibcode:2013PCCP...1510817G. doi:10.1039/c3cp50701g. PMID 23694848.
  3. ^ Mandal, Pranay; Chopra, Vaishali; Ghosh, Ambarish (17 April 2015). "Independent Positioning of Magnetic Nanomotors". ACS Nano. 9 (5): 4717–4725. doi:10.1021/acsnano.5b01518. PMID 25824608.
  4. ^ Ghosh, Souvik; Ghosh, Ambarish (10 January 2018). "Mobile nanotweezers for active colloidal manipulation". Science Robotics. 3 (14): eaaq0076. doi:10.1126/scirobotics.aaq0076.
  5. ^ "Nanorobots as Mobile Viscometers".
  6. ^ Pal, Malay; Somalwar, Neha; Singh, Anumeha; Bhat, Ramray; Eswarappa, Sandeep M.; Saini, Deepak K.; Ghosh, Ambarish (May 2018). "Maneuverability of Magnetic Nanomotors Inside Living Cells". Advanced Materials. 30 (22): 1800429. doi:10.1002/adma.201800429. PMID 29635828.
  7. ^ Ghosh, Arijit; Dasgupta, Debayan; Pal, Malay; Morozov, Konstantin I.; Leshansky, Alexander M.; Ghosh, Ambarish (June 2018). "Helical Nanomachines as Mobile Viscometers". Advanced Functional Materials. 28 (25): 1705687. doi:10.1002/adfm.201705687.
  8. ^ Johnson Singh, Haobijam; Ghosh, Ambarish (4 September 2012). "Porous Three Dimensional Arrays of Plasmonic Nanoparticles". The Journal of Physical Chemistry C. 116 (36): 19467–19471. doi:10.1021/jp3062702.
  9. ^ Singh, Johnson Haobijam; Nair, Greshma; Ghosh, Arijit; Ghosh, Ambarish (2013). "Wafer scale fabrication of porous three-dimensional plasmonic metamaterials for the visible region: chiral and beyond". Nanoscale. 5 (16): 7224. Bibcode:2013Nanos...5.7224S. doi:10.1039/C3NR02666C.
  10. ^ Singh, Haobijam Johnson; Ghosh, Ambarish (2018). "Harnessing magnetic dipole resonance in novel dielectric nanomaterials". Nanoscale. 10 (34): 16102–16106. doi:10.1039/C8NR04666B.
  11. ^ Paria, Debadrita; Roy, Kallol; Singh, Haobijam Johnson; Kumar, Shishir; Raghavan, Srinivasan; Ghosh, Arindam; Ghosh, Ambarish (March 2015). "Ultrahigh Field Enhancement and Photoresponse in Atomically Separated Arrays of Plasmonic Dimers". Advanced Materials. 27 (10): 1751–1758. doi:10.1002/adma.201404312.
  12. ^ Vadakkumbatt, Vaisakh; Joseph, Emil; Pal, Anustuv; Ghosh, Ambarish (1 August 2014). "Studying electrons on curved surfaces by trapping and manipulating multielectron bubbles in liquid helium". Nature Communications. 5 (1): 4571. Bibcode:2014NatCo...5.4571V. doi:10.1038/ncomms5571. PMID 25081283.
  13. ^ "Electron Bubble Explosion in Liquid Helium".
  14. ^ "Shanti Swarup Bhatnagar Prize (SSB) for Science and Technology 2018" (PDF). Shanti Swarup Bhatnagar Prize. 26 September 2018. Retrieved 26 September 2018.
  15. ^ "Ramakrishna Rao Chair Professorship". Indian Institute of Science. Retrieved 3 November 2019.
  16. ^ "Umanand L, Ambarish Ghosh, & Pramod Kumar have been Elected as of Fellows of The Indian National Academy of Engineering w.e.f. Nov. 1, 2020". Indian Institute of Science, Bengaluru. Retrieved 25 January 2021.
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